inSciences
  • Home
  • Human
    • All
    • Diseases
    • Health & Medicine
    • Mental Health
    • Neurology
    • Psychology
    • Sensors
    Roche develops new serology test to detect COVID-19 antibodies

    Roche develops new serology test to detect COVID-19 antibodies

    Novartis announces data in Neurology reinforcing the real-world and long-term effectiveness and safety of Aimovig® as a preventive treatment across the full spectrum of migraine

    Novartis announces data in Neurology reinforcing the real-world and long-term effectiveness and safety of Aimovig® as a preventive treatment across the full spectrum of migraine

    EMA review of Picato concludes medicine’s risks outweigh its benefits

    EMA review of Picato concludes medicine’s risks outweigh its benefits

    Dance With Your Grandma (after COVID-19 of course)

    Dance With Your Grandma (after COVID-19 of course)

    Covid-19 mortality highly influenced by age demographics

    Covid-19 mortality highly influenced by age demographics

    Alarming Abusive Head Trauma Revealed in Computational Simulation Impact Study

    Increased Rate of Infections May Indicate a Future Cancer Diagnosis

    Remdesivir improved majority of patients hospitalized with severe COVID-19

    Remdesivir improved majority of patients hospitalized with severe COVID-19

    Blood Test May Help Doctors Catch Pancreatic Cancer Early

    Blood Test May Help Doctors Catch Pancreatic Cancer Early

    Mental health and brain research must be a higher priority in global response to tackle COVID-19 pandemic

    Mental health and brain research must be a higher priority in global response to tackle COVID-19 pandemic

    Trending Tags

    • Earth
      • All
      • Archaeology
      • Climate
      • Environment
      • Oceans
      • Seismology
      Unusually Clear Skies Drove Record Loss of Greenland Ice in 2019

      Unusually Clear Skies Drove Record Loss of Greenland Ice in 2019

      Volcanic CO2 emissions helped trigger Triassic climate change

      Volcanic CO2 emissions helped trigger Triassic climate change

      Timing of Large Earthquakes Follows a “Devil’s Staircase” Pattern

      Timing of Large Earthquakes Follows a “Devil’s Staircase” Pattern

      Neanderthal cord weaver

      Neanderthal cord weaver

      New Species Discovered During Exploration of Abyssal Deep-Sea Canyons off Ningaloo

      New Species Discovered During Exploration of Abyssal Deep-Sea Canyons off Ningaloo

      Bristol leads archaeologists on 5,000-year-old egg hunt

      Bristol leads archaeologists on 5,000-year-old egg hunt

      Climate change could cause sudden biodiversity losses worldwide

      Climate change could cause sudden biodiversity losses worldwide

      Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

      Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

      Sulfur ‘Spices’ Alien Atmospheres

      Sulfur ‘Spices’ Alien Atmospheres

      Trending Tags

      • Space
        • All
        • Astronomy
        Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

        Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

        ESO Telescope Sees Star Dance Around Supermassive Black Hole, Proves Einstein Right

        ESO Telescope Sees Star Dance Around Supermassive Black Hole, Proves Einstein Right

        Beacon In Space

        Beacon In Space

        Beacon in space

        Beacon in space

        Clemson researchers capture first-ever photographic proof of power-packed jet emerging from colliding galaxies

        Clemson researchers capture first-ever photographic proof of power-packed jet emerging from colliding galaxies

        The Milky Way’s satellites help reveal link between dark matter halos and galaxy formation

        The Milky Way’s satellites help reveal link between dark matter halos and galaxy formation

        Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

        Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

        Trending Tags

        • Technology
          • All
          • Artificial Intelligence
          • Computer Science
          • Imaging Technology
          • Photonics
          Lighting the Way to Safer Heart Procedures

          Lighting the Way to Safer Heart Procedures

          3D Fusion Imaging Improves Coronary Artery Disease Diagnosis

          3D Fusion Imaging Improves Coronary Artery Disease Diagnosis

          Long Spaceflights Affect Astronaut Brain Volume

          Long Spaceflights Affect Astronaut Brain Volume

          The Power of Light – Ultraviolet LEDs prove effective in eliminating coronavirus from surfaces and, potentially, air and water

          The Power of Light – Ultraviolet LEDs prove effective in eliminating coronavirus from surfaces and, potentially, air and water

          Artificial Intelligence Can Help Some Businesses But May Not Work For Others

          Artificial Intelligence Can Help Some Businesses But May Not Work For Others

          Reducing Delays In Wireless Networks

          Reducing Delays In Wireless Networks

          Successful development of photovoltaic commercialization technology with improved quantum dot efficiency

          Successful development of photovoltaic commercialization technology with improved quantum dot efficiency

          To Tune Up Your Quantum Computer, Better Call an AI Mechanic

          To Tune Up Your Quantum Computer, Better Call an AI Mechanic

          Trending Tags

          • Physics
            • All
            • Astrophysics
            • Chemistry
            • Materials Science
            • Nanotechnology
            • Physics
            • Quantum Physics
            Potential energy saving solution for making vital chemicals

            Potential energy saving solution for making vital chemicals

            Scientists Discover Brightest Supernova Ever Seen

            Scientists Discover Brightest Supernova Ever Seen

            Acidic alert

            Acidic alert

            Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

            Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

            Finding the beat: New discovery settles a long-standing debate about photovoltaic materials

            Finding the beat: New discovery settles a long-standing debate about photovoltaic materials

            With a heavy heart: how men and women develop heart disease differently

            With a heavy heart: how men and women develop heart disease differently

            Untwisting plastics for charging Internet-of-things devices

            Untwisting plastics for charging Internet-of-things devices

            Applying mathematics to accelerate predictions for capturing fusion energy

            Applying mathematics to accelerate predictions for capturing fusion energy

            New boron material of high hardness created by plasma chemical vapor deposition

            New boron material of high hardness created by plasma chemical vapor deposition

            Trending Tags

            • Business
              • All
              • Business
              • Economics
              Mutual Funds With Lower Tax Burdens Have Higher Returns

              Mutual Funds With Lower Tax Burdens Have Higher Returns

              New Research Finds Rising Between-Workplace Inequalities in the U.S. and other High Income Countries

              New Research Finds Rising Between-Workplace Inequalities in the U.S. and other High Income Countries

              Artificial Intelligence Can Help Some Businesses But May Not Work For Others

              Artificial Intelligence Can Help Some Businesses But May Not Work For Others

              Older Entrepreneurs as Successful as Their Younger Counterparts, Study Reveals

              Older Entrepreneurs as Successful as Their Younger Counterparts, Study Reveals

              Trending Tags

              No Result
              View All Result
              inSciences
              • Home
              • Human
                • All
                • Diseases
                • Health & Medicine
                • Mental Health
                • Neurology
                • Psychology
                • Sensors
                Roche develops new serology test to detect COVID-19 antibodies

                Roche develops new serology test to detect COVID-19 antibodies

                Novartis announces data in Neurology reinforcing the real-world and long-term effectiveness and safety of Aimovig® as a preventive treatment across the full spectrum of migraine

                Novartis announces data in Neurology reinforcing the real-world and long-term effectiveness and safety of Aimovig® as a preventive treatment across the full spectrum of migraine

                EMA review of Picato concludes medicine’s risks outweigh its benefits

                EMA review of Picato concludes medicine’s risks outweigh its benefits

                Dance With Your Grandma (after COVID-19 of course)

                Dance With Your Grandma (after COVID-19 of course)

                Covid-19 mortality highly influenced by age demographics

                Covid-19 mortality highly influenced by age demographics

                Alarming Abusive Head Trauma Revealed in Computational Simulation Impact Study

                Increased Rate of Infections May Indicate a Future Cancer Diagnosis

                Remdesivir improved majority of patients hospitalized with severe COVID-19

                Remdesivir improved majority of patients hospitalized with severe COVID-19

                Blood Test May Help Doctors Catch Pancreatic Cancer Early

                Blood Test May Help Doctors Catch Pancreatic Cancer Early

                Mental health and brain research must be a higher priority in global response to tackle COVID-19 pandemic

                Mental health and brain research must be a higher priority in global response to tackle COVID-19 pandemic

                Trending Tags

                • Earth
                  • All
                  • Archaeology
                  • Climate
                  • Environment
                  • Oceans
                  • Seismology
                  Unusually Clear Skies Drove Record Loss of Greenland Ice in 2019

                  Unusually Clear Skies Drove Record Loss of Greenland Ice in 2019

                  Volcanic CO2 emissions helped trigger Triassic climate change

                  Volcanic CO2 emissions helped trigger Triassic climate change

                  Timing of Large Earthquakes Follows a “Devil’s Staircase” Pattern

                  Timing of Large Earthquakes Follows a “Devil’s Staircase” Pattern

                  Neanderthal cord weaver

                  Neanderthal cord weaver

                  New Species Discovered During Exploration of Abyssal Deep-Sea Canyons off Ningaloo

                  New Species Discovered During Exploration of Abyssal Deep-Sea Canyons off Ningaloo

                  Bristol leads archaeologists on 5,000-year-old egg hunt

                  Bristol leads archaeologists on 5,000-year-old egg hunt

                  Climate change could cause sudden biodiversity losses worldwide

                  Climate change could cause sudden biodiversity losses worldwide

                  Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

                  Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

                  Sulfur ‘Spices’ Alien Atmospheres

                  Sulfur ‘Spices’ Alien Atmospheres

                  Trending Tags

                  • Space
                    • All
                    • Astronomy
                    Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

                    Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

                    ESO Telescope Sees Star Dance Around Supermassive Black Hole, Proves Einstein Right

                    ESO Telescope Sees Star Dance Around Supermassive Black Hole, Proves Einstein Right

                    Beacon In Space

                    Beacon In Space

                    Beacon in space

                    Beacon in space

                    Clemson researchers capture first-ever photographic proof of power-packed jet emerging from colliding galaxies

                    Clemson researchers capture first-ever photographic proof of power-packed jet emerging from colliding galaxies

                    The Milky Way’s satellites help reveal link between dark matter halos and galaxy formation

                    The Milky Way’s satellites help reveal link between dark matter halos and galaxy formation

                    Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

                    Data From NASA’s Cassini May Explain Saturn’s Atmospheric Mystery

                    Trending Tags

                    • Technology
                      • All
                      • Artificial Intelligence
                      • Computer Science
                      • Imaging Technology
                      • Photonics
                      Lighting the Way to Safer Heart Procedures

                      Lighting the Way to Safer Heart Procedures

                      3D Fusion Imaging Improves Coronary Artery Disease Diagnosis

                      3D Fusion Imaging Improves Coronary Artery Disease Diagnosis

                      Long Spaceflights Affect Astronaut Brain Volume

                      Long Spaceflights Affect Astronaut Brain Volume

                      The Power of Light – Ultraviolet LEDs prove effective in eliminating coronavirus from surfaces and, potentially, air and water

                      The Power of Light – Ultraviolet LEDs prove effective in eliminating coronavirus from surfaces and, potentially, air and water

                      Artificial Intelligence Can Help Some Businesses But May Not Work For Others

                      Artificial Intelligence Can Help Some Businesses But May Not Work For Others

                      Reducing Delays In Wireless Networks

                      Reducing Delays In Wireless Networks

                      Successful development of photovoltaic commercialization technology with improved quantum dot efficiency

                      Successful development of photovoltaic commercialization technology with improved quantum dot efficiency

                      To Tune Up Your Quantum Computer, Better Call an AI Mechanic

                      To Tune Up Your Quantum Computer, Better Call an AI Mechanic

                      Trending Tags

                      • Physics
                        • All
                        • Astrophysics
                        • Chemistry
                        • Materials Science
                        • Nanotechnology
                        • Physics
                        • Quantum Physics
                        Potential energy saving solution for making vital chemicals

                        Potential energy saving solution for making vital chemicals

                        Scientists Discover Brightest Supernova Ever Seen

                        Scientists Discover Brightest Supernova Ever Seen

                        Acidic alert

                        Acidic alert

                        Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

                        Texas-Led Team Finds Earth-Sized, Habitable Zone Planet Hidden in Early NASA Kepler Data

                        Finding the beat: New discovery settles a long-standing debate about photovoltaic materials

                        Finding the beat: New discovery settles a long-standing debate about photovoltaic materials

                        With a heavy heart: how men and women develop heart disease differently

                        With a heavy heart: how men and women develop heart disease differently

                        Untwisting plastics for charging Internet-of-things devices

                        Untwisting plastics for charging Internet-of-things devices

                        Applying mathematics to accelerate predictions for capturing fusion energy

                        Applying mathematics to accelerate predictions for capturing fusion energy

                        New boron material of high hardness created by plasma chemical vapor deposition

                        New boron material of high hardness created by plasma chemical vapor deposition

                        Trending Tags

                        • Business
                          • All
                          • Business
                          • Economics
                          Mutual Funds With Lower Tax Burdens Have Higher Returns

                          Mutual Funds With Lower Tax Burdens Have Higher Returns

                          New Research Finds Rising Between-Workplace Inequalities in the U.S. and other High Income Countries

                          New Research Finds Rising Between-Workplace Inequalities in the U.S. and other High Income Countries

                          Artificial Intelligence Can Help Some Businesses But May Not Work For Others

                          Artificial Intelligence Can Help Some Businesses But May Not Work For Others

                          Older Entrepreneurs as Successful as Their Younger Counterparts, Study Reveals

                          Older Entrepreneurs as Successful as Their Younger Counterparts, Study Reveals

                          Trending Tags

                          No Result
                          View All Result
                          inSciences
                          No Result
                          View All Result
                          Home Physical Science Quantum Physics

                          Successful development of photovoltaic commercialization technology with improved quantum dot efficiency

                          by Insciences
                          April 13, 2020
                          in Quantum Physics, Technology
                          0
                          Successful development of photovoltaic commercialization technology with improved quantum dot efficiency

                          Professor Jongmin Choi, Department of Energy Science & Engineering, DGIST. Credit: ⓒDGIST

                          Share on FacebookShare on Twitter

                          – The cause for efficiency degradation in an actual operating environment has been identified, with proposal of material processing method for improving performance stability
                          – Expected to significantly contribute to the further commercialization of next generation quantum dot PV devices

                          A technology to further accelerate the commercialization of Colloidal Quantum Dot(CQD) Photovoltaic(PV) devices, which are expected to be next-generation photovoltaic devices, has been developed.

                           On the 30th (Monday), DGIST announced that a research team of Professor Jongmin Choi from the Department of Energy Science & Engineering t and Professor Edward H. Sargent from the University of Toronto has identified the cause of the performance degradation in CQD PV devices and developed a material processing method capable of stabilizing the performance of the devices.

                           Quantum dots have excellent light absorbance and are capable of absorbing light over a wide range of wavelengths. Hence, they have gained expectation as a key material for the next generation photovoltaic devices. In particular, quantum dots are light, flexible, and involve low processing costs; therefore, they can be replaced by supplementing the drawbacks of silicon solar cells currently in use

                           In this regard, several studies on photoelectric conversion efficiency (PCE) have been conducted with the aim of improving the performance of CQD PV devices. However, very few studies have focused on improving the stability of these devices, which is necessary for the commercialization process. In particular, few studies have used the CQD PV device at the Maximum Power Point, which is the actual operating environment of PV devices.

                           For this purpose, the research team investigated the causes of performance degradation by continuously exposing them to illumination and oxygen for long periods of time, similar to the actual operating conditions, in order to improve the stability required for the actual commercialization stage of CQD PV devices. As a result, it was identified that the iodine ions on the surface of the quantum dot solids were removed via oxidation, resulting in the formation of an oxide layer. This oxide layer resulted in the deformation of the quantum dot structure, thereby decreasing the efficiency of the device.

                           The research team developed a ligand substitution method with potassium(K) to improve the low efficiency of the device. Ligand refers to the ions or molecules that bond to the central atom of a complex similar to a branch. Here, potassium iodide, which prevents the oxidation of iodine, was deployed on the surface of quantum dot solids to undergo a substitution process. As a result of application of the invented method, the device maintained its continuous performance rate of over 80%, which is its initial efficiency rate, for 300 hours. This number is a figure that is higher than premeasured performance thus far.

                           Professor Jongmin Choi from DGIST said, “The study is to demonstrate that the CQD PV device can operate more stably in the actual operating environment,” and further commented, “The results are expected to further accelerate the commercialization of the CQD PV device. ”

                           The results of this study were published on February 20, in a world-leading, international academic journal Advanced Materials (IF = 25.809). Professor Jongmin Choi from the Energy Science & Engineering Department of DGIST participated in this study as the lead author.

                          Reference: Jongmin Choi, Min-Jae Choi, Junghwan Kim, Filip Dinic, Petar Todorovic, Bin Sun, Mingyang Wei, Se-Woong Baek, Sjoerd Hoogland, F. Pelayo García de Arquer, Oleksandr Voznyy, and Edward H. Sargent, “Stabilizing Surface Passivation Enables Stable Operation of Colloidal Quantum Dot Photovoltaic Devices at Maximum Power Point in an Air Ambient“, Advanced Materials, on 13 January 2020.

                          Source: Daegu Gyeongbuk Institute of Science and Technology (DGIST)

                          Tags: Colloidal Quantum DotColloidal Quantum Dot Photovoltaic devicesCQDPV devicesPCEphotoelectric conversion efficiencyphotovoltaic commercialization technologyPV devicesquantum dotquantum dot PV devices
                          Next Post
                          Australian study: Many home blood pressure monitors not validated for accuracy

                          Australian study: Many home blood pressure monitors not validated for accuracy

                          Tech Not Hurting Social Skills of ‘Kids These Days’

                          Tech Not Hurting Social Skills of ‘Kids These Days’

                          Sensing a Heart Attack Before It Strikes

                          Sensing a Heart Attack Before It Strikes

                          Please login to join discussion

                          Recent News

                          Potential energy saving solution for making vital chemicals

                          Potential energy saving solution for making vital chemicals

                          April 18, 2020
                          Scientists Discover Brightest Supernova Ever Seen

                          Scientists Discover Brightest Supernova Ever Seen

                          April 17, 2020

                          Category

                          • Animals
                          • Applied physics
                          • Archaeology
                          • Artificial Intelligence
                          • Astronomy
                          • Astrophysics
                          • Biochemistry
                          • Biology
                          • Biomechanics
                          • Biomedical Engineering
                          • Business
                          • Business
                          • Cancer
                          • Cell Biology
                          • Chemistry
                          • Climate
                          • Computer Science
                          • Diseases
                          • Earth Science
                          • Economics
                          • Engineering
                          • Environment
                          • General
                          • Genetics
                          • Health & Medicine
                          • Human Science
                          • Imaging Technology
                          • Immunology
                          • Life Science
                          • Materials Science
                          • Mechanical engineering
                          • Mental Health
                          • Molecular Biology
                          • Nanotechnology
                          • Neurology
                          • Neuroscience
                          • Nutrition
                          • Oceans
                          • Pharmaceutical Sciences
                          • Photonics
                          • Physical Science
                          • Physics
                          • Plants
                          • Psychology
                          • Quantum Physics
                          • Radiology
                          • Seismology
                          • Sensors
                          • Sociology
                          • Space
                          • Sports
                          • Stem Cells
                          • Technology

                          About Us

                          Insciences is a non-profit organization based in Switzerland and hosted by ‘nextron‘. Insciences is an international, free-access sciences news website dedicated solely to experts in science fields such as researchers, professors, doctors, lecturers and PhD students from all around the world.

                          • Privacy Policy

                          © 2020 Insciences Organisation Switzerland

                          No Result
                          View All Result
                          • Home
                          • General
                          • Human Science
                            • Health & Medicine
                          • Earth Science
                            • Environment
                          • Space
                          • Technology
                            • Artificial Intelligence
                          • Physics
                          • Chemistry
                          • Business
                            • Business
                            • Economics

                          © 2020 Insciences Organisation Switzerland