Exploring the effects of interfacial carrier transport layers on device performance and optoelectronic properties of planar perovskite solar cells

被引：136

作者：

Khadka, Dhruba B. ^{[1
]}

Shirai, Yasuhiro ^{[1
]}

Yanagida, Masatoshi ^{[1
]}

Ryan, James W. ^{[1
,2
]}

Miyano, Kenjiro ^{[1
]}

机构：

[1] NIMS, Global Res Ctr Environm & Energy Based Nanomat Sc, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[2] NIMS, ICYS, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2017年 / 5卷 / 34期

关键词：

OPEN-CIRCUIT VOLTAGE; HYSTERESIS-FREE; LOW-TEMPERATURE; ION MIGRATION; THIN-FILMS; EFFICIENCY; FABRICATION; STABILITY; QUALITY; LOSSES;

D O I：

10.1039/c7tc02822a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the effects of carrier transport layer on performance of perovskite device and limitation factors by analysing the optoelectronic properties. The device efficiency was enhanced from similar to 14.5% to similar to 18.1% by replacing hole transport layer (HTL) PEDOT:PSS with PTAA, governed by increase in open circuit voltage and short circuit current. We found that PTAA device leads to the improvement in interface layer quality, efficient carrier transport and mitigation of bulk defect activities. The analysis of temperature and intensity dependent current-voltage characteristics suggests that PEDOT: PSS device is limited by interface and trap assisted recombination. The capacitance spectroscopy and electroluminescence revealed soothing of recombination activities as a consequence of better interface quality and shallower defect level for PTAA device. Our results consolidate that the perovskite film and interface quality and recombination activities in device are dominantly influenced by HTLs which pave a way for further enhancement in efficiency coupled with excellent interfacial carrier transport layer.

引用

页码：8819 / 8827

页数：9

共 72 条

[71] Photovoltaic behaviour of lead methylammonium triiodide perovskite solar cells down to 80 K [J].

Zhang, Hua ;

Qiao, Xianfeng ;

Shen, Yan ;

Moehl, Thomas ;

Zakeeruddin, Shaik M. ;

Graetzel, Michael ;

Wang, Mingkui .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (22) :11762-11767

[72] Enhanced optoelectronic quality of perovskite thin films with hypophosphorous acid for planar heterojunction solar cells [J].

Zhang, Wei ;

Pathak, Sandeep ;

Sakai, Nobuya ;

Stergiopoulos, Thomas ;

Nayak, Pabitra K. ;

Noel, Nakita K. ;

Haghighirad, Amir A. ;

Burlakov, Victor M. ;

deQuilettes, Dane W. ;

Sadhanala, Aditya ;

Li, Wenzhe ;

Wang, Liduo ;

Ginger, David S. ;

Friend, Richard H. ;

Snaith, Henry J. .

NATURE COMMUNICATIONS, 2015, 6

← 1 2 3 4 5 6 7 8 →