6 February 2004 Photovoltaic cells of fullerene/poly-phenylenevinylene derivative prepared by spray deposition
Author Affiliations +
The spray deposition method has been developed as a new way of polymer ultra-thin film preparation for organic optoelectronic devices such as an organic photovoltaic cell (OPC). In this method, a highly diluted solution of an organic material is nebulized into air and concentrated under a controlled evaporation condition. The resulting aerosol is transported by a carrier gas and deposited onto a solid substrate. This method has substantial advantages that an almost insoluble and non-evaporative material can be fabricated into a thin film, and that a separate area coating and layer-by-layer structure of polymer materials can be performed. An OPC was prepared from highly diluted THF solutions (below 1 ppm) of fullerene/ poly-phenylenevinylene (PPV) derivative mixture. The device configuration, ITO/PEDOT-PSS/fullerene-PPV/LiF/Al, is known as a bulk hetero-junction PC. By control of temperature, we obtained homogeneous active layer by spray deposition. In addition, we can achieve power conversion efficiency of 0.63% using the active layer consist of fullerene: PPV(1:1). This method has significant potential to provide a structural control of the active layer and to reduce the cost of the OPCs drastically in spite that the power conversion efficiency is slightly lower than a PC prepared in same ratio by spin-coating.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takamasa Ishikawa, Takamasa Ishikawa, Makiko Nakamura, Makiko Nakamura, Katsuhiko Fujita, Katsuhiko Fujita, Tetsuo Tsutsui, Tetsuo Tsutsui, } "Photovoltaic cells of fullerene/poly-phenylenevinylene derivative prepared by spray deposition", Proc. SPIE 5215, Organic Photovoltaics IV, (6 February 2004); doi: 10.1117/12.505671; https://doi.org/10.1117/12.505671

Back to Top