Accession Number:

AD1000739

Title:

Photo-switchable Donor-Acceptor (D-A) Dyad Interfacial Self-Assembled Monolayersfor Organic Photovoltaic Cells

Descriptive Note:

Technical Report,01 Mar 2012,31 Aug 2015

Corporate Author:

University of Texas at El Paso El Paso United States

Personal Author(s):

Report Date:

2015-11-05

Pagination or Media Count:

9.0

Abstract:

Several Donor-Acceptor D-A dyads were designed and prepared to be used as photo switched interfacial layers to polarize organic solar cells when irradiated to increase the photoconversion efficiencies. Some D-A dyads were designed to be anchored on TiO2 supports to function as Dye Sensitized Solar Cells DSSCs. The concept of photoswitched interfacial polarization was clearly demonstrated using impedance spectroscopy for several triphenylamine-fullerene dyads, but their performance in photovoltaic devices was not remarkable, likely due to the presence of pinholes in the self-assembled monolayers. Some of the new compounds performed relatively well in DSSCs, some attaining PCEs of 4.7-5.6.

Subject Categories:

  • Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE