Presentation Information
[9p-C310-2]Effects of Crystallization Conditions of Sol-Gel TiO2 Electron Transport Layers on the Device Characteristics of Thin-Film Photovoltaic Devices
〇Kota Fukuda1, Taizo Kobayashi1, Saiki Kitagawa1 (1.Graduate School of College of Science and Engineering, Ritsumeikan Univ.)
Keywords:
sol-gel titanium oxide,light-soaking effect,annearing process
According to the widespread use of internet of things (IoT) devices, indoor photovoltaic (IPV) devices have attracted attention as one of wireless stable power sources that do not require battery replacement. In this study, sol-gel processed TiO2 thin films used as the electron transport layer for selenium (Se) based IPV devices were fabricated. The TiO2 films were prepared with different deposition and annealing conditions to vary oxidation degrees and crystallographic structure. The effects of TiO2 composition and crystallinity on the photoresponsivity and device performance were characterized using X-ray diffraction, electrochemical measurements, and J–V measurements. Device characteristics were also investigated before and after light-soaking treatment.