TY - JOUR
T1 - Self-adhesive macroporous carbon electrodes for efficient and stable perovskite solar cells
AU - Zhang, Huiyin
AU - Xiao, Junyan
AU - Shi, Jiangjian
AU - Su, Hang
AU - Luo, Yanhong
AU - Li, Dongmei
AU - Wu, Huijue
AU - Cheng, Yi Bing
AU - Meng, Qingbo
PY - 2018/9/26
Y1 - 2018/9/26
N2 - Carbon electrode are a low-cost and great potential strategy for stable perovskite solar cells (PSCs). However, the efficiency of carbon-based PSCs lags far behind compared with that of state-of-the-art PSCs. The poor interface contact between the carbon electrode and the underlying layer dominates the performance loss of the reported carbon-based PSCs. In this respect, a sort of self-adhesive macroporous carbon film is developed as counter electrode by a room-temperature solvent-exchange method. Via a simple press transfer technique, the carbon film can form excellent interface contact with the underlying hole transporting layer, remarkably beneficial to interface charge transfer. A power conversion efficiency of up to 19.2% is obtained for mesoporous-structure PSCs, which is the best achieved for carbon-based PSCs. Moreover, the device exhibits greatly improved long-term stability. It retains over 95% of the initial efficiency after 1000 h storage under ambient atmosphere. Furthermore, after aging for 80 h under illumination and maximum power point in nitrogen atmosphere, the carbon-based PSC retains over 94% of its initial performance.
AB - Carbon electrode are a low-cost and great potential strategy for stable perovskite solar cells (PSCs). However, the efficiency of carbon-based PSCs lags far behind compared with that of state-of-the-art PSCs. The poor interface contact between the carbon electrode and the underlying layer dominates the performance loss of the reported carbon-based PSCs. In this respect, a sort of self-adhesive macroporous carbon film is developed as counter electrode by a room-temperature solvent-exchange method. Via a simple press transfer technique, the carbon film can form excellent interface contact with the underlying hole transporting layer, remarkably beneficial to interface charge transfer. A power conversion efficiency of up to 19.2% is obtained for mesoporous-structure PSCs, which is the best achieved for carbon-based PSCs. Moreover, the device exhibits greatly improved long-term stability. It retains over 95% of the initial efficiency after 1000 h storage under ambient atmosphere. Furthermore, after aging for 80 h under illumination and maximum power point in nitrogen atmosphere, the carbon-based PSC retains over 94% of its initial performance.
KW - carbon electrodes
KW - macroporous electrodes
KW - perovskite solar cells
KW - self-adhesive
KW - stable electrodes
UR - http://www.scopus.com/inward/record.url?scp=85052706963&partnerID=8YFLogxK
U2 - 10.1002/adfm.201802985
DO - 10.1002/adfm.201802985
M3 - Article
AN - SCOPUS:85052706963
VL - 28
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 39
M1 - 1802985
ER -