Mesoporous TiO2 layer suppresses ion accumulation in perovskite solar cells

Mesoporous TiO2 layer suppresses ion accumulation in perovskite solar cells

Ion accumulation in perovskite solar cells can be highly suppressed by a mesoporous TiO2 layer. This is evidenced by the decrease of the ion-related electrostatic potential with increasing the thickness of the mesoporous layer, accounted for by the electron population in the shallow trap states of t...

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Veröffentlicht in:Physical chemistry chemical physics : PCCP 2022-09, Vol.24 (35), p.20689-20693
Hauptverfasser: Miao, Shaoshuai, Yuan, Shuai, Zhu, Dongping, Cai, Qingbin, Hao-Yi, Wang, Wang, Yi, Qin, Yujun, Xi-Cheng, Ai
Format: Artikel
Sprache:eng
Schlagworte:
Accumulation
Nanocrystals
Perovskites
Photovoltaic cells
Solar cells
Thickness
Titanium dioxide
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Zusammenfassung:Ion accumulation in perovskite solar cells can be highly suppressed by a mesoporous TiO2 layer. This is evidenced by the decrease of the ion-related electrostatic potential with increasing the thickness of the mesoporous layer, accounted for by the electron population in the shallow trap states of the TiO2 nanocrystals.
ISSN:1463-9076
1463-9084
DOI:10.1039/d2cp02037h