Spectral broadening in quantum dots-sensitized photoelectrochemical solar cells based on CdSe and Mg-doped CdSe nanocrystals

被引：74

作者：

Lee, Wonjoo ^{[2
]}

Kwak, Woo-Chul ^{[1
]}

Min, Sun Ki ^{[2
]}

Lee, Jung-Chul ^{[1
]}

Chae, Won-Seok ^{[3
]}

Sung, Yun-Mo ^{[1
]}

Han, Sung-Hwan ^{[2
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[2] Hanyang Univ, Dept Chem, Seoul 133791, South Korea

[3] Daejin Univ, Dept Chem, Pochun Si 487711, Kyunggi Do, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 11期

关键词：

Quantum dots-sensitized solar cells; Photoelectrochemical cells; Spectral broadening; Co-sensitization; CdSe;

D O I：

10.1016/j.elecom.2008.08.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In order to absorb a broad spectrum in visible region, a co-sensitized TiO2 electrode was prepared by CdSe and Mg-doped CdSe quantum dots (Q dots). The power conversion efficiency of the co-sensitized Q dots photoelectrochemical solar cells (PECs) showed 1.03% under air mass 1.5 condition (I = 100 mW/cm(2)), which is higher than that of individual Q dots-sensitized PECs. The incident-photon-to-current conversion efficiency of the co-sensitized PECs showed absorption peaks at 541 and 578 nm corresponding to the two Q dots and displayed a broad spectral response over the entire visible spectrum in the 500600 nm wavelength domains. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1699 / 1702

页数：4

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