Yoo Seung Hwa, Kum Jong Min, Ali Ghafar, Heo Sung Hwan, Cho Sung Oh
Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea.
Nanoscale Res Lett. 2012 Feb 20;7(1):142. doi: 10.1186/1556-276X-7-142.
The photoelectrochemical (PEC) responses of electron-irradiated 66-phenyl-C61-butyric acid methyl ester (PCBM)/TiO2 electrodes were evaluated in a PEC cell. By coating PCBM on TiO2 nanoparticle film, the light absorption of PCBM/TiO2 electrode has expanded to the visible light region and improved the PEC responses compared to bare TiO2 electrode. The PEC responses were further improved by irradiating an electron beam on PCBM/TiO2 electrodes. Compared to non-irradiated PCBM/TiO2 electrodes, electron irradiation increased the photocurrent density and the open-circuit potential of PEC cells by approximately 90% and approximately 36%, respectively at an optimum electron irradiation condition. The PEC responses are carefully evaluated correlating with the optical and electronic properties of electron-irradiated PCBM/TiO2 electrodes.
在光电化学（PEC）电池中评估了电子辐照的6,6-苯基-C61-丁酸甲酯（PCBM）/二氧化钛（TiO₂）电极的光电化学响应。通过在TiO₂纳米颗粒薄膜上涂覆PCBM，PCBM/TiO₂电极的光吸收范围扩展到了可见光区域，并且与裸TiO₂电极相比，其光电化学响应得到了改善。通过在PCBM/TiO₂电极上辐照电子束，光电化学响应进一步提高。在最佳电子辐照条件下，与未辐照的PCBM/TiO₂电极相比，电子辐照分别使PEC电池的光电流密度和开路电位提高了约90%和约36%。结合电子辐照的PCBM/TiO₂电极的光学和电子性质，对光电化学响应进行了仔细评估。
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