Carbon-Based All-Inorganic CsPbI2Br Perovskite Solar Cells Using TiO2 Nanorod Arrays: Interface Modification and the Enhanced Photovoltaic Performance

被引：11

作者：

Cai, Wanxian ^{[1
]}

Lv, Yanqi ^{[1
]}

Chen, Koucheng ^{[1
]}

Zhang, Zhaobin ^{[1
]}

Jin, Yuanzeng ^{[1
]}

Zhou, Xingfu ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Chem & Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China

来源：

ENERGY & FUELS | 2020年 / 34卷 / 09期

基金：

中国国家自然科学基金;

关键词：

HIGH-EFFICIENCY; HIGHLY EFFICIENT; RUTILE TIO2; SENSITIZERS;

D O I：

10.1021/acs.energyfuels.0c01821

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Recently, carbon-based all-inorganic perovskite solar cells (PSCs) caught the attention of photovoltaic researchers due to their remarkable stability. Herein, we report a carbon-based all-inorganic CsPbI2Br PSC using TiO2 nanorod arrays (TiO2 NRAs) as an electron transporting layer. The method of using TiO2 NRAs as an electron pathway has the advantage of increasing the electron-hole separation effectively and enables a thicker active perovskite layer to obtain a stronger absorbance. In addition, a water-alcohol soluble CsCl was used to modify the interface between TiO2 NRAs and the CsPbI2Br active layer to reduce interfacial recombination of charge carriers in the cells, and the CsCl interface-modified device showed a 10.6% increase in the open-circuit voltage. An optimized power conversion efficiency of 11.45% has been obtained, which is one of the superior performances reported for the carbon-based pure CsPbI2Br PSCs to date.

引用

页码：11670 / 11678

页数：9

共 46 条

[41] Constructing efficient mixed-ion perovskite solar cells based on TiO2 nanorod array [J].

Yang, Longkai ;

Wang, Xin ;

Mai, Xianmin ;

Wang, Tan ;

Wang, Chao ;

Li, Xin ;

Murugadoss, Vignesh ;

Shao, Qian ;

Angaiah, Subramania ;

Guo, Zhanhu .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2019, 534 (459-468) :459-468

[42] Dopamine-crosslinked TiO2/perovskite layer for efficient and photostable perovskite solar cells under full spectral continuous illumination [J].

Zhang, Yiqiang ;

Liu, Xiaotao ;

Li, Pengwei ;

Duan, Yanyan ;

Hu, Xiaotian ;

Li, Fengyu ;

Song, Yanlin .

NANO ENERGY, 2019, 56 :733-740

[43] Constructing Chaotic Systems from a Class of Switching Systems [J].

Zhang, Yuping ;

Liu, Xinzhi ;

Zhang, Huaiyue ;

Jia, Chunhua .

INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, 2018, 28 (02)

[44] Interface engineering of highly efficient perovskite solar cells [J].

Zhou, Huanping ;

Chen, Qi ;

Li, Gang ;

Luo, Song ;

Song, Tze-bing ;

Duan, Hsin-Sheng ;

Hong, Ziruo ;

You, Jingbi ;

Liu, Yongsheng ;

Yang, Yang .

SCIENCE, 2014, 345 (6196) :542-546

[45] Band Alignment Engineering Towards High Efficiency Carbon-Based Inorganic Planar CsPbIBr2 Perovskite Solar Cells [J].

Zhu, Weidong ;

Zhang, Zeyang ;

Chai, Wenming ;

Zhang, Qianni ;

Chen, Dazheng ;

Lin, Zhenhua ;

Chang, Jingjing ;

Zhang, Jincheng ;

Zhang, Chunfu ;

Hao, Yue .

CHEMSUSCHEM, 2019, 12 (10) :2318-2325

[46] Intermolecular Exchange Boosts Efficiency of Air-Stable, Carbon-Based All-Inorganic Planar CsPbIBr2 Perovskite Solar Cells to Over 9% [J].