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

Research output: Contribution to journalArticle

354 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 - Jan 13 2010

Fingerprint

Quantum efficiency
quantum efficiency
Nanostructures
Polymers
Energy gap
Conjugated polymers
polymers
Conversion efficiency
Solar cells
solar cells
Lighting
illumination
Nanoparticles
Fabrication
nanoparticles
fabrication
benzo-1,2,3-thiadiazole

Keywords

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

ASJC Scopus subject areas

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

Cite this

Photovoltaic devices with a low band gap polymer and CdSe nanostructures exceeding 3% efficiency. / Dayal, Smita; Kopidakis, Nikos; Olson, Dana C.; Ginley, David S.; Rumbles, Garry.

In: Nano Letters, Vol. 10, No. 1, 13.01.2010, p. 239-242.

Research output: Contribution to journalArticle

Dayal, Smita ; Kopidakis, Nikos ; Olson, Dana C. ; Ginley, David S. ; Rumbles, Garry. / Photovoltaic devices with a low band gap polymer and CdSe nanostructures exceeding 3% efficiency. In: Nano Letters. 2010 ; Vol. 10, No. 1. pp. 239-242.
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