Efficient ZnO Nanowire Solid-State Dye-Sensitized Solar Cells Using Organic Dyes and Core-shell Nanostructures

被引：75

作者：

Plank, Natalie O. V. ^{[1
]}

Howard, Ian ^{[2
]}

Rao, Akshay ^{[2
]}

Wilson, Mark W. B. ^{[2
]}

Ducati, Caterina ^{[3
]}

Mane, Rajaram Sakharam ^{[4
]}

Bendall, James S. ^{[1
]}

Louca, Rami R. M. ^{[1
]}

Greenham, Neil C. ^{[2
]}

Miura, Hidetoshi ^{[5
]}

Friend, Richard H. ^{[2
]}

Snaith, Henry J. ^{[4
]}

Welland, Mark E. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Nanosci Ctr, Cambridge CB3 0FF, England

[2] Univ Cambridge, Cavendish Lab, Optoelect Grp, Cambridge CB3 0HE, England

[3] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England

[4] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[5] Chemicrea Co Ltd, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 43期

基金：

英国工程与自然科学研究理事会;

关键词：

OPEN-CIRCUIT VOLTAGE; PHOTOVOLTAIC DEVICES; CHARGE RECOMBINATION; OPTICAL-PROPERTIES; NANORODS; LAYERS; POLYMER; GROWTH; OXIDES; TIN;

D O I：

10.1021/jp904919r

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：

We have applied a MgO and a ZrO2 shell deposition method to control the interface between two indolene-based organic dyes in solid-state dye-sensitized solar cells. The shell deposition was carried out at less than 100 degrees C, and shell thickness was shown to be 2 nm for the ZrO2 and 6-10 nm for the MgO by transmission electron microscopy. X-ray photoelectron spectroscopy has shown the initial ZnO NWs and core-shell structures have little surface water contamination. The use of suitable dyes, D102 and D149, has led to power conversion efficiency for ZnO NW based hybrid solar cells of 0.71%. Transient absorption measurements indicate that enhancements in photoinduced charge generation with core-shell formation are the main factor leading to the improved device efficiency.

引用

页码：18515 / 18522

页数：8

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