期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 8, 期 10, 页码 2928-2934出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ee02608c
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资金
- European FP7 FET project PHOCS [309223]
- European Union's Seventh Framework Programme [291771]
- European Union [604032]
- CCEM-CH [906: CONNECT PV]
- Swiss National Science Foundation (SNF)-NRP70 [PV2050, 407040-153990/1, 407040-153976/1]
- GRAPHENE project - European Commission Seventh Framework Programme [604391]
- EU Horizon 2020 Research and Innovation Programme [643238 (SYNCHRONICS)]
- Swiss National Science Foundation (SNF) [407040_153990] Funding Source: Swiss National Science Foundation (SNF)
The simplification of perovskite solar cells (PSCs), by replacing the mesoporous electron selective layer (ESL) with a planar one, is advantageous for large-scale manufacturing. PSCs with a planar TiO2 ESL have been demonstrated, but these exhibit unstabilized power conversion efficiencies (PCEs). Herein we show that planar PSCs using TiO2 are inherently limited due to conduction band misalignment and demonstrate, with a variety of characterization techniques, for the first time that SnO2 achieves a barrier-free energetic configuration, obtaining almost hysteresis-free PCEs of over 18% with record high voltages of up to 1.19 V.
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