IV-VI nanocrystal-polymer solar cells

被引：46

作者：

Fritz, Karolina P. ^{[1
,2
]}

Guenes, Serap ^{[3
]}

Luther, Joseph ^{[4
]}

Kumar, Sandeep ^{[1
,2
]}

Saricifitci, N. Serdar ^{[3
]}

Scholes, Gregory D. ^{[1
,2
]}

机构：

[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada

[2] Univ Toronto, Inst Opt Sci, Toronto, ON M5S 3H6, Canada

[3] Johannes Kepler Univ Linz, LIOS, A-4040 Linz, Austria

[4] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2008年 / 195卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

nanocrystals; PbS; solar cells; photovoltaic devices; near-infrared;

D O I：

10.1016/j.jphotochem.2007.09.004

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：

Processes are investigated for the fabrication of hybrid bilayer photovoltaic (PV) devices consisting of IV-VI nanocrystals (NCs) having near-infrared optical gaps and an organic conductive polymer. Our design utilizes PbS NCs spin-cast onto an indium tin oxide (ITO) coated glass slide, covered with a poly(3-hexylthiophene-2,5-diyl) (P3HT) layer. We demonstrate here that the removal of the surface ligand, by pre-rinsing the NCs and subsequent annealing, generates a smoother film with a greater degree of cross-linking between the NCs. Additionally, a post-production treatment enhances the interfacial layer and improves charge carrier separation and mobility, rendering better performing solar cells. Further, results using PbSe NCs indicate the method can be adapted to similar systems. The method proposed here was designed to optimize more independently the polymer and nanocrystal components of the device and, to an extent, the interface between them. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：39 / 46

页数：8

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