Wavelength-Selectivity of Organic Photoconductive Devices by Solution Process
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概要
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Organic photoconductive devices sensitive to blue, green, and red lights were achieved using poly(9,9-dioctylfluorenyl-2,7-diyl)-co-1,4-benzo-(2,1,3)-thiadiazole (F8BT), rhodamine 6G-doped poly(9,9-dioctylfluorene) (PFO), nickel tetrakis(tert-butyl)phthalocyanine-doped PFO, respectively. These organic materials can be coated by a solution process, which leads us to realize the low fabrication cost and the large device area. Selectivity of spectral responses of these organic films were good enough to divide the incident light into three color components (blue, green, and red), indicating the possibility of a color separation without a prism for high resolution cameras. Quantum efficiencies of devices were estimated by absorption coefficients of photoconductive materials and photo-induced current densities while irradiating a visible light. The quantum efficiency of a blue sensitive device was better than those of green and red sensitive devices due to the suitable energy level of the blue sensitive material, F8BT.
- 2009-04-25
著者
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Fukuda Takeshi
Graduate School Of Science And Engineering Waseda University
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Fukuda Takeshi
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Ohkubo, Sakura-ku, Saitama 338-8570, Japan
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Kobayashi Ryohei
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Ohkubo, Sakura, Saitama 338-8570, Japan
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Kamata Norihiko
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Ohkubo, Sakura, Saitama 338-8570, Japan
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Komoriya Mitsuo
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Ohkubo, Sakura-ku, Saitama 338-8570, Japan
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Ishimaru Yoshihiro
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Ohkubo, Sakura-ku, Saitama 338-8570, Japan
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Kamata Norihiko
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Ohkubo, Sakura-ku, Saitama 338-8570, Japan
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Kobayashi Ryohei
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Ohkubo, Sakura-ku, Saitama 338-8570, Japan
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FUKUDA Takeshi
Graduate School of Engineering, Osaka University, Osaka 560-0043, Japan
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