Fast Fabrication of a Stable Perovskite Solar Cell with an Ultrathin Effective Novel Inorganic Hole Transport Layer.
With the aim of fabricating simple, reproducible, and scalable perovskite solar cells (PSCs) with least time consumption, a novel CoOxhole transport layer (HTL) was first proposed and introduced in this work. The CoOxHTL thickness was minimized to about 10 nm with complete coverage on the FTO substrate (F-doped SnO2) by direct current magnetron sputtering. The ultrathin HTL could minimize the incident light loss caused by cobalt ion absorption and reduce the carrier transport loss by shortening the transport path. Copper was incorporated into the CoOxlattice to address the low conductivity of the CoOxfilm and the energy-level mismatch between CoOxand the perovskite material. On the basis of cobalt-copper binary oxide (Co1-yCuyOx), the highest power conversion efficiency (PCE) of about 10% was achieved, which was acceptable for mass production. Moreover, the deposition of such Co1-yCuyOxfilms takes only 2 min without size limitation of substrates. A well-functioned device based on the Co1-yCuyOxHTL could hence be fabricated within 100 min. Excellent stability was demonstrated as well, with over 90% of the initial PCE remaining after being stored in a dark and humid environment (relative humidity 60%) for 12 days.
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.|University of Chinese Academy of Sciences , Yuquan 19, Shijingshan, Beijing 100049, China.
Aibin
0000-0002-6126-0207
A
Huang
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.
Lei
0000-0002-0068-310X
L
Lei
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.|University of Chinese Academy of Sciences , Yuquan 19, Shijingshan, Beijing 100049, China.
Jingting
J
Zhu
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.|University of Chinese Academy of Sciences , Yuquan 19, Shijingshan, Beijing 100049, China.
Yu
Y
Yu
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.
Yan
Y
Liu
CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Heshuo 588, Jiading, Shanghai, 201899, China.
Songwang
0000-0001-6304-5941
S
Yang
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.
Shanhu
S
Bao
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.
Xun
X
Cao
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Shanghai 200050, China.|National Institute of Advanced Industrial Science and Technology (AIST) , Moriyama, Nagoya 463-8560, Japan.
Ping
P
Jin