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

*Corresponding author for this work

Research output: Contribution to journalArticle

366 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 languageEnglish
Pages (from-to)239-242
Number of pages4
JournalNano Letters
Volume10
Issue number1
DOIs
Publication statusPublished - 13 Jan 2010
Externally publishedYes

Keywords

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

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    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