Highly efficient aqueous-processed polymer/nanocrystal hybrid solar cells with an aqueous-processed TiO2 electron extraction layer

被引：26
作者：
Zhao, Yue [1 ]
Zeng, Qingsen [2 ]
Liu, Xu [1 ]
Jiao, Shihui [1 ]
Pang, Guangsheng [1 ]
Du, Xiaohang [2 ]
Zhang, Kai [2 ]
Yang, Bai [2 ]
机构：
[1] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
[2] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 30期
基金：
美国国家科学基金会;
关键词：
QUANTUM DOTS; BULK HETEROJUNCTION; POLYMER; NANOCRYSTALS; PERFORMANCE; PHOTOVOLTAICS; DYNAMICS; IMPACT; BLEND;
D O I：
10.1039/c6ta03585j
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, a novel environmentally friendly approach to deposit TiO2 films via an aqueous process is developed. The atomic force microscopy (AFM) measurement indicates that water-dispersed TiO2 nanocrystals (NCs) show excellent film-forming properties on an ITO-coated glass substrate. In addition, the femtosecond transient absorption (TA) and conductivity measurements suggest that the aqueous-processed TiO2 film shows excellent electron extraction ability and good conductivity. The aqueous-processed polymer/NC hybrid solar cells based on the aqueous-processed TiO2 electron extraction layer present superior photovoltaic performance and a PCE of 5.53% is achieved, which is the highest for hybrid solar cells fabricated via an aqueous process. Finally, the solar cells with the aqueous-processed TiO2 electron extraction layer exhibit better humidity resistance compared to the TiO2 film deposited via a sol-gel method.
引用
收藏
页码：11738 / 11746
页数：9
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