Gold Nano-Dots used as Buffer Layer at the Transparent Conductive Anode/Organic Electron Donor Interface in Organic Solar Cells

Dr Jean Christian Bernède
University of Nantes
Apr 04, 2012.

Presentation Summary

  • A gold thin film of only 0.5 nm introduced at the interface between the ITO or ZnO anode and the organic electron donor in organic photovoltaic cells induces a strong improvement of the cell efficiency.
  • XPS and SEM have shown that only 15% of the anode is covered by gold, which proves the high efficiency of gold as anode buffer layer in organic photovoltaic devices.
  • The average gold nano-dots size is 5-6 nm2, while the averaged distance between them is 5-6 nm.
  • These gold nano-dots are also efficient in others organic devices such as organic light emitting diodes.

Speaker Biography (Jean Christian Bernède)

Jean Christian Bernède was born on May 15, 1948 in Nantes France. He is a physician, specialist of thin films deposited by physical vacuum deposition. He works in the field of inorganic and organic photovoltaic cells for more than 20 years. Author of more than 300 articles in scientific journals. Responsible for numerous international contracts of researches among which several Europeans.

Company Profile (University of Nantes)

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The University of Nantes is a young university, it celebrates its 50 years this year. It counts more than 30000 students among whom more than 5000 in Faculty of science. One of the main fields of investigation of the University is dedicated to materials. More precisely, the team involved in the study gold nano-dots use to work on optoelectronic devices, mainly organic photovoltaic cells.
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