Nanowire Perovskite Solar Cell

被引：307

作者：

Im, Jeong-Hyeok ^{[1
,2
,3
]}

Luo, Jingshan ^{[3
]}

Franckevicius, Marius ^{[3
,4
]}

Pellet, Norman ^{[3
,5
]}

Gao, Peng ^{[3
]}

Moehl, Thomas ^{[3
]}

Zakeeruddin, Shaik Mohammed ^{[3
]}

Nazeeruddin, Mohammad Khaja ^{[3
]}

Graetzel, Michael ^{[3
]}

Park, Nam-Gyu ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South Korea

[3] Ecole Polytech Fed Lausanne, Sch Basic Sci, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

[4] Ctr Phys Sci & Technol, LT-02300 Vilnius, Lithuania

[5] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

来源：

NANO LETTERS | 2015年 / 15卷 / 03期

基金：

瑞士国家科学基金会; 欧洲研究理事会; 新加坡国家研究基金会;

关键词：

nanowire; perovskite; CH3NH3PbI3; solar cell; aprotic solvent; ELECTRON; TRANSPORT; LENGTHS; SIZE;

D O I：

10.1021/acs.nanolett.5b00046

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Organolead iodide perovskite, CH3NH3PbI3, was prepared in the form of nanowire by means of a small quantity of aprotic solvent in two-step spin-coating procedure. One-dimensional nanowire perovskite with the mean diameter of 100 nm showed faster carrier separation in the presence of hole transporting layer and higher lateral conductivity than the three-dimensional nanocuboid crystal. Reduction in dimensionality resulted in the hypsochromic shift of both absorption and fluorescence spectra, indicative of more localized exciton states in nanowires. The best performing device employing nanowire CH3NH3PbI3 delivered photocurrent density of 19.12 mA/cm(2), voltage of 1.052 V, and fill factor of 0.721, leading to a power conversion efficiency (PCE) of 14.71% at standard AM 1.5G solar illumination. A small I-V hysteresis was observed, where a PCE at forward scan was measured to be 85% of the PCE at reverse scan.

引用

页码：2120 / 2126

页数：7

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