Synthesis of infrared-active heterostructured semiconductor nanocrystals for photovoltaic applications

Jeffrey M. Pietryga, Doh C. Lee, Istvan Robel, Victor I. Klimov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Semiconductor nanocrystals are of intense interest for photovoltaics due to large absorption cross-sections and high photostabilities. Lead chalcogenide nanocrystals are a particularly attractive system because of the facile colloidal synthesis of high quality nanocrystals with band gaps within the ideal energy range for solar energy capture (0.9-1.2 eV), and because they demonstrate carrier multiplication that can potentially increase the efficiency of suitably fabricated solar cells. Moreover, specifically designed lead-chalcogenide-based heterostructured nanocrystals are expected to exhibit properties that enhance the feasibility of realizing this promise. Growing such materials colloidally has been complicated by the instability of lead chalcogenide nanocrystals at elevated temperatures. Recently, we synthesized thermally stable PbSe/CdSe and PbS/CdS core/shell nanocrystals that represent a gateway to more complex architectures. This talk will discuss the synthesis of a new series of infrared-active nanoheterostructures based on these building blocks.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
Publication statusPublished - Dec 1 2009
Event238th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Washington, DC, United States
Duration: Aug 16 2009Aug 20 2009

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other238th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CityWashington, DC
Period8/16/098/20/09

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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  • Cite this

    Pietryga, J. M., Lee, D. C., Robel, I., & Klimov, V. I. (2009). Synthesis of infrared-active heterostructured semiconductor nanocrystals for photovoltaic applications. In American Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).