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Letter

Nature Materials 4, 138–142 (1 February 2005) | doi:10.1038/nmat1299

Solution-processed PbS quantum dot infrared photodetectors and photovoltaics

Steven A. McDonald , Gerasimos Konstantatos , Shiguo Zhang , Paul W. Cyr , Ethan J. D. Klem , Larissa Levina & Edward H. Sargent

In contrast to traditional semiconductors, conjugated polymers provide ease of processing, low cost, physical flexibility and large area coverage. These active optoelectronic materials produce and harvest light efficiently in the visible spectrum.