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

361 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

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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

Cite this

Dayal, S., Kopidakis, N., Olson, D. C., Ginley, D. S., & Rumbles, G. (2010). Photovoltaic devices with a low band gap polymer and CdSe nanostructures exceeding 3% efficiency. Nano letters, 10(1), 239-242. https://doi.org/10.1021/nl903406s

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10.1021/nl903406s