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Indexed by:期刊论文

Date of Publication:2009-01-01

Journal:Journal of Semiconductors

Included Journals:EI、CSCD、Scopus

Volume:30

Issue:10

Page Number:59-62

ISSN No.:1674-4926

Abstract:According to Lambert's law, a novel structure of photodetectors, namely photodetectors in silicon-on-insulator, is proposed. By choosing a certain thickness value for the SOI layer, the photodetector can absorb blue/violet light effectively and affect the responsivity of the long wavelength in the visible and near-infrared region, making a blue/violet filter unnecessary. The material of the SOI layer is high-resistivity floating-zone silicon which can cause the neutral N type SOI layer to become fully depleted after doping with a P type impurity. This can improve the collection efficiency of short-wavelength photogenerated carriers. The device structure was optimized through numerical simulation, and the results show that the photodiode is a kind of high performance photodetector in the blue/violet region. ? 2009 Chinese Institute of Electronics.