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| Fri, 10th Apr 2020 14:11:00 |
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Development of new photovoltaic commercialization technology |
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.
DGIST recently announced that a research team with Professor Jongmin Choi from the Department of Energy Science & Engineering 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 attracted attention as a key material for 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.
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