Quantum-Confined ZnO Nanoshell Photoanodes for Mesoscopic Solar Cells

被引：38

作者：

Chandiran, Aravind Kumar ^{[1
]}

Abdi-Jalebi, Mojtaba ^{[1
]}

Yella, Aswani ^{[1
]}

Dar, M. Ibrahim ^{[1
,2
]}

Yi, Chenyi ^{[1
]}

Shivashankar, Srinivasrao A. ^{[2
]}

Nazeeruddin, Mohammad K. ^{[1
]}

Graetzel, Michael ^{[1
]}

机构：

[1] Swiss Fed Inst Technol EPFL, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

[2] Indian Inst Sci, Mat Res Ctr, Ctr Nano Sci & Engn, Bangalore 560012, Karnataka, India

来源：

NANO LETTERS | 2014年 / 14卷 / 03期

关键词：

Dye-sensitized solar cell; zinc oxide; atomic layer deposition; CH3NH3PbI3; quantum confinement; perovskite; ATOMIC LAYER DEPOSITION; CONVERSION EFFICIENCIES; NANOSTRUCTURED ZNO; ELECTRON INJECTION; REDOX ELECTROLYTE; ENERGY CONVERSION; OXIDE; ADSORPTION; COMPLEXES; FILMS;

D O I：

10.1021/nl4039955

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a photoanode for dye-sensitized solar cell (DSC) based on ZnO nanoshell deposited by atomic layer deposition at 150 degrees C on a mesoporous insulating template. An ultrathin layer of ZnO between. 3 and 6 nm, which exhibits quantum confinement effect, is found to be sufficient to transport the photogenerated electrons to the external contacts and exhibits near-unity collection efficiency. A 6 nm ZnO nanoshell on a 2.5 mu m mesoporous nanoparticle Al2O3 template yields photovoltaic power conversion efficiency (PCE) of 4.2% in liquid DSC. Perovskite absorber (CH3NH3PbI3) based solid state solar cells made with similar ZnO nanostructures lead to a high PCE of 7%.

引用

页码：1190 / 1195

页数：6

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