Analysis of CuPc-based organic solar cell with high photovoltage

Alberto Aguilera, R. Suresh Singh, Balaji Parthasarathy, Karen E. Sampson, Subhash C.C. Vallurupalli, John E. Anthony, Marcia M. Payne, Vijay P. Singh

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Photovoltaic devices of the configuration ITO-PEDOT:PSS/CuPc/PTCBI/AI were investigated. A high open circuit voltage (Voc) of 1.125V was obtained when the PTCBI layer was 7 nm thick. Value of Voc was lower when silver, copper or gold electrode was used instead of aluminum. However, short-circuit current density (Jsc) with these electrodes was much higher (4 mA/cm2) than in the case of aluminum (0.12 mA/cm 2). These results could be understood in terms of a modified CuPc/Al Schottky diode model for the thin PTCBI case and a CuPc/PTCBI heterojunction model for the thick PTCBI case. Also, the formation of a thin, protective aluminum oxide layer under the aluminum electrode was postulated. For devices with silver, copper and gold electrodes, absence of this protective layer was thought to be the cause of the relatively lower Voc and higher J sc.

Original languageEnglish
Pages (from-to)121-124
Number of pages4
JournalConference Record of the IEEE Photovoltaic Specialists Conference
StatePublished - 2005
Event31st IEEE Photovoltaic Specialists Conference - 2005 - Lake Buena Vista, FL, United States
Duration: Jan 3 2005Jan 7 2005

ASJC Scopus subject areas

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


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