Optical Properties of a-Si:H Ultrathin Layers
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概要
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Optical properties of hydrogenated amorphous Si (a-Si:H) in a-Si_<0.2>C_<0.8>:H/a-Si:H/a-Si_<0.2>C_<0.8>:H heterostructures are studied with emphasis on the quantum size effect in an amorphous system. When the thickness of the a-Si:H well layer is reduced to about 25 A, a notable change in optical gap as well as the shape of absorption spectra is observed, while the infrared emission band remains unchanged. The results are explained on the basis of the quantization of the carrier motion in the extended states of the confined a-Si:H. A potential application of the amorphous heterostructure is presented.
- 社団法人応用物理学会の論文
- 1983-08-20
著者
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Munekata Hiro
Imaging Science And Engineering Laboratory Tokyo Institute Of Technology
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Kukimoto Hiroshi
Imaging Science And Engineering Lab. Tokyo Institute Of Technology
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