Time-Evolution of Poly(3-Hexylthiophene) as an Energy Relay Dye in Dye-Sensitized Solar Cells

被引：36

作者：

Humphry-Baker, Nicola ^{[2
]}

Driscoll, Kristina ^{[2
]}

Rao, Akshay ^{[2
]}

Torres, Tomas ^{[3
,4
]}

Snaith, Henry J. ^{[1
]}

Friend, Richard H. ^{[2
]}

机构：

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

[2] Univ Cambridge, Cavendish Lab, Dept Phys, Cambridge CB3 0HE, England

[3] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Organ CI, E-28049 Madrid, Spain

[4] IMDEA Nanociencia, Madrid 28049, Spain

来源：

NANO LETTERS | 2012年 / 12卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Dye-sensitized solar cell; solid-state; FRET; transient absorption spectroscopy; CHARGE-TRANSFER; EFFICIENCY; PHTHALOCYANINES; RECOMBINATION; POLYTHIOPHENE; POLYMERS; FILMS;

D O I：

10.1021/nl203377r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Energy relay dyes (ERD) and Forster resonant energy transfer (FRET) are useful techniques for increasing absorption in dye-sensitized solar cells. We use femtosecond transient absorption spectroscopy to monitor charge generation processes in a solid-state DSC containing poly(3-hexylthiophene) (P3HT) as both the hole-transporter and the ERD with a zinc phthalocyanine dye (TT1) as the sensitizer. We observe efficient FRET occurring on picosecond time scales and subsequent hole transfer from TT1 to P3HT occurring onward from 100 ps.

引用

页码：634 / 639

页数：6

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