[12a-N207-1~10] 12.3 Functional Materials and Novel Devices

△ [12a-N207-6] Anomalous wavelength-dependent output response of Sb-chalcohalide photovoltaic devices

〇Ryosuke Nishikubo¹, Akinori Saeki¹ (1.Osaka Univ.)

Keywords:photoelectric convirsion, device, antimony

Here, anomalous wavelength-dependent output response of the photovoltaic devices using Sb-chalcohalide (SbSI) is reported. Shockley diode model, which represents the output property of photovoltaic, generally dose not consider the influence of irradiated wavelength. In fact, conventional photovoltaics such as silicon, perovskite, and organic photovoltaics do not show any change of JV characteristics by changing the irradiation wavelength. However, it was unexpectedly discovered that the devices using SbSI showed the obvious change in the output by changing the irradiation wavelength. In this study, the detailed device property was studied by using various methods such as Time-Resolved Microwave Conductivity (TRMC), transient photovoltage (TPV). Based on the results, the mechanism of this phenomena will be also discussed.