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|標題:||Efficient hybrid organic/inorganic photovoltaic cells utilizing n-type pentacene and intrinsic/p-type hydrogenated amorphous silicon||作者:||Chao, C.H.
|關鍵字:||Hybrid solar cells;Inorganic semiconductors;Organic semiconductors;Photovoltaic effect;Pentacene;organic solar-cells;thin-films;morphology;thickness;semiconductors;performance;transport||Project:||Solar Energy Materials and Solar Cells||期刊/報告no：:||Solar Energy Materials and Solar Cells, Volume 95, Issue 8, Page(s) 2407-2411.||摘要:||
We demonstrate efficient hybrid inorganic/organic p-i-n photovoltaic (PV) devices with a p-type-doped hydrogenated amorphous silicon (a-Si:H), intrinsic a-Si:H, and an organic semiconductor, pentacene. The correlation between the electrical properties of the PV devices and the morphological properties of the pentacene films were investigated using absorption spectroscopy, X-ray diffraction, and scanning electron microscopy. The maximum power conversion efficiency can be increased by one order with respect to the devices using different thicknesses of a pentacene layer from 0.32% at 10 nm to above 3.0% at 30 nm. Photocarriers in PVs are suggested to be mainly generated in the intrinsic a-Si:H layer. The pentacene layer is used as the exciton-blocking and electron-transport layer. Thus, the structural quality of pentacene films plays an important role in PV performance. (C) 2011 Elsevier B.V. All rights reserved.
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