Semitransparent organic photovoltaic cells

Rhonda F. Bailey-Salzman, Barry P. Rand, Stephen R. Forrest

Research output: Contribution to journalArticle

105 Scopus citations

Abstract

We demonstrate semitransparent, small molecular weight organic solar cells employing a thin silver/indium tin oxide compound cathode with a maximum transmission of (60±6) % averaged over the visible spectral range and with a power conversion efficiency, p = (0.28±0.03) % under simulated, AM1.5G, 1 sun illumination. By increasing the Ag thickness, an average transmission of (26±3) % is achieved with p = (0.62±0.06) %, a value approximately half of that obtained for the same structure employing a conventional, reflective, and thick Ag cathode. A semitransparent tandem organic solar cell with p = (0.48±0.02) % and an average transmission of (44±4) % is also demonstrated. Semitransparent organic photovoltaic cells have potential uses as tinted and power-generating thin-film coatings on architectural surfaces, such as windows and walls. The use of a transparent top electrode also significantly simplifies the design of tandem cells, relaxing requirements for the placement of different absorbing materials at the maxima of optical fields introduced by reflective cathodes.

Original languageEnglish (US)
Article number233502
JournalApplied Physics Letters
Volume88
Issue number23
DOIs
StatePublished - Jun 5 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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