Molecular design of metal-free D-π-A substituted sensitizers for dye-sensitized solar cells

被引：74

作者：

Alibabaei, L. ^{[1
]}

Kim, J. -H. ^{[2
,3
]}

Wang, M. ^{[1
]}

Pootrakulchote, N. ^{[1
]}

Teuscher, J. ^{[1
]}

Di Censo, D. ^{[1
]}

Humphry-Baker, R. ^{[1
]}

Moser, J. -E. ^{[1
]}

Yu, Y. -J. ^{[2
,3
]}

Kay, K. -Y. ^{[2
]}

Zakeeruddin, S. M. ^{[1
]}

Graetzel, M. ^{[1
]}

机构：

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

[2] Ajou Univ, Dept Mol Sci & Technol, Suwon 443749, South Korea

[3] Ajou Univ, SolarSys Co Ltd, BI Ctr, Suwon 443749, South Korea

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2010年 / 3卷 / 11期

基金：

瑞士国家科学基金会;

关键词：

INTERFACIAL ELECTRON-TRANSFER; HIGH-EFFICIENCY; ORGANIC SENSITIZERS; HIGHLY EFFICIENT; SEMICONDUCTOR; PERFORMANCE; DONOR;

D O I：

10.1039/c0ee00218f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel donor-pi-acceptor (D-pi-A) dyes, coded as SD-1, SD-2 and SD-5, were designed and synthesized for dye-sensitized solar cells. All these dyes comprised the same donor and acceptor units while the oligo thiophene units were introduced as linkers between the donor and acceptor units. The photophysical and electrochemical properties of the dyes were investigated by UV/vis spectrometry and cyclic voltammetry. The dyes were subsequently tested as sensitizers in dye-sensitized solar cells. Photovoltaic performance of the device with SD-2 dye showed maximum monochromatic incident photon-to-current efficiency (IPCE) of 82% and an over all conversion efficiency of 6.2% under full sunlight (AM 1.5G, 100 mW cm(-2)) irradiation.

引用

页码：1757 / 1764

页数：8

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