Self passivating hybrid (Organic/Inorganic) tandem solar cell

Sung Jin Kim, Won Jin Kim, Alexander N. Cartwright, Ryne P. Raffaelle, Paras N. Prasad

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


An all solution processed tandem photovoltaic structure, consisting of a hydrazine treated PbSe nanocrystal photoconducting film and a P3HT/PCBM bulk heterojunction solar cell, was fabricated. The PbSe nanocrystal cell was use as the top (light incident from top) cell, and optimized in thickness, to absorb predominantly UV and short wavelength visible light. The lower P3HT/PCBM cell absorbed the remaining solar energy and supplied photocurrent as well as the necessary field to extract the photogenerated carriers from the PbSe device. Carrier multiplication resulting from multiple exciton generation in the PbSe film at UV wavelengths was quantified by using separate activation for the top cell and bottom cell with selective light biasing. Lifetime measurements of a standard P3HT/PCBM solar cell and the tandem structure wereperformed under AM 1.5 and UV enhanced illumination. The durability of the tandem cell under UV illumination was significantly better than the single layer bulk heterojunction cell.

Original languageEnglish (US)
Title of host publication33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
StatePublished - 2008
Externally publishedYes
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA, United States
Duration: May 11 2008May 16 2008

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Other33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
Country/TerritoryUnited States
CitySan Diego, CA

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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