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All Solution Processable Organic Photovoltaic Cells Using DMDCNQI as an Organic N-Type Buffer Layer

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Abstract:

Organic photovoltaic cells consisting of ITO/PEDOT-PSS/P3HT:PCBM/TiO x /DMDCNQI/Al have been fabricated by using dip-coated DMDCNQI layer as a cathode buffer material. We have investigated the physical effects of charge transfer complex and wettability of DMDCNQI between TiO x /P3HT:PCBM layer and Al cathode electrode on the performance of organic photovoltaic cell. The photovoltaic cell fabricated with a dip-coated DMDCNQI layer exhibited almost similar performance compared to the device using conventional evaporated DMDCNQI layer. Especially, the power conversion efficiency of the prepared organic photovoltaic cell using TiO x /DMDCNQI layer was improved to 3.1%, which is mainly due to the decrease in the low contact resistance of organicmetal interface.

Keywords: CONTACT RESISTANCE; DMDCNQI; ORGANIC PHOTOVOLTAIC CELL; SOLUTION PROCESS; TIO X; WETTABILITY

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2012.5388

Publication date: 2012-01-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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