Photovoltaic devices with a low band gap polymer and CdSe nanostructures exceeding 3% efficiency

Smita Dayal; Nikos Kopidakis; Dana C. Olson; David S. Ginley; Garry Rumbles

doi:10.1021/nl903406s

Photovoltaic devices with a low band gap polymer and CdSe nanostructures exceeding 3% efficiency

Smita Dayal, Nikos Kopidakis, Dana C. Olson, David S. Ginley, Garry Rumbles

National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

370 Citations (Scopus)

Abstract

We report the fabrication and measurement of solar cells approaching a power conversion efficiency of 3.2% using a low band gap conjugated polymer poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene) -alt-4,7-(2,1,3-benzothiadiazole)] and CdSe nanoparticles. These devices exhibit an external quantum efficiency (EQE) of >30% in abroad range of 350-800 nm with a maximum EQE of 55% in a range of 630-720 nm. We also present certified device efficiencies of 3.13% under AM 1.5 illumination.

Original language	English
Pages (from-to)	239-242
Number of pages	4
Journal	Nano letters
Volume	10
Issue number	1
DOIs	https://doi.org/10.1021/nl903406s
Publication status	Published - Jan 13 2010

Keywords

Inorganic-organic photovoltaic devices
Low band gap polymer
Nanoparticles
Power conversion efficiency

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/nl903406s

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abstract = "We report the fabrication and measurement of solar cells approaching a power conversion efficiency of 3.2% using a low band gap conjugated polymer poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene) -alt-4,7-(2,1,3-benzothiadiazole)] and CdSe nanoparticles. These devices exhibit an external quantum efficiency (EQE) of >30% in abroad range of 350-800 nm with a maximum EQE of 55% in a range of 630-720 nm. We also present certified device efficiencies of 3.13% under AM 1.5 illumination.",

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