1. Origin of Open-Circuit Voltage Loss in Polymer Solar Cells and Perovskite Solar Cells
- Author
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Ai Shimazaki, Masaru Endo, Hiroaki Benten, Hideo Ohkita, Hyung Do Kim, Shinzaburo Ito, Atsushi Wakamiya, and Nayu Yanagawa
- Subjects
Materials science ,charge recombination mechanisms ,02 engineering and technology ,Photon energy ,Quantum dot solar cell ,open-circuit voltages ,010402 general chemistry ,01 natural sciences ,Polymer solar cell ,charge generation mechanisms ,General Materials Science ,Perovskite (structure) ,Theory of solar cells ,integumentary system ,Open-circuit voltage ,business.industry ,food and beverages ,Hybrid solar cell ,021001 nanoscience & nanotechnology ,organic−inorganic perovskites ,0104 chemical sciences ,Optoelectronics ,0210 nano-technology ,business ,polymer solar cells ,Voltage - Abstract
Herein, the open-circuit voltage (V[OC]) loss in both polymer solar cells and perovskite solar cells is quantitatively analyzed by measuring the temperature dependence of V[OC] in order to discuss the difference in the primary loss mechanism of V[OC] between them. As a result, the photon energy loss for polymer solar cells is in the range of 0.7–1.4 eV, which is ascribed to temperature-independent and -dependent loss mechanisms while that for perovskite solar cells is as small as about 0.5 eV, which is ascribed to a temperature-dependent loss mechanism. This difference is attributed to the different charge generation and recombination mechanisms between the two devices. The potential strategies for the improvement of V[OC] in both solar cells are further discussed on the basis of the experimental data.
- Published
- 2017