Low temperature TiOx compact layer by chemical bath deposition method for vapor deposited perovskite solar cells

In this paper, we try to fabricate the planer heterojunction (PHJ) perovskite solar cell based on low temperature TiOx compact layer by chemical bath deposition (CBD) method. We compared solar cell properties between compact-TiO x layer and compact-TiO 2 layer, where CBD deposited films were heated...

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Bibliographic Details
Main Authors: Yamamoto, Kouhei, Ying Zhou, Kuwabara, Takayuki, Takahashi, Koshin, Endo, Masaru, Wakamiya, Atushi, Ogomi, Yuhei, Hayase, Shuzi, Taima, Tetsuya
Format: Conference Proceeding
Language:eng ; jpn
Subjects:
Educational institutions
electron collection
Hysteresis
perovskite
Photovoltaic cells
Solar heating
Titanium
titanium oxide
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Summary:In this paper, we try to fabricate the planer heterojunction (PHJ) perovskite solar cell based on low temperature TiOx compact layer by chemical bath deposition (CBD) method. We compared solar cell properties between compact-TiO x layer and compact-TiO 2 layer, where CBD deposited films were heated at 250 °C in order to convert into TiO x amorphous state and 450 °C intoTiO 2 anatase state, respectively. Power conversion efficiency of PHJ perovskite solar cell based on our compact-TiO x shows almost same as that of TiO 2 one. In addition, we discuss the origin of hysteresis of PHJ perovskite solar cell based on compact-TiO x and TiO 2 . We conclude that hysteresis of PHJ perovskite solar cell is heavily influenced by surface coverage and roughness of compact-TiO x or TiO 2 layers on transparent conducting oxide.
ISSN:0160-8371
DOI:10.1109/PVSC.2014.6925218