抄録
p-Type ultrananocrystalline diamond/hydrogenated amorphous carbon composite (UNCD/a-C:H) films were fabricated by pulsed laser deposition with boron-blended graphite targets. The X-ray diffraction patterns exhibited diffraction peaks attributable to diamond-111 and diamond-200. Electrical conductivity clearly increased with boron content. The near-edge X-ray absorption fine structure revealed that doped boron atoms partially replace hydrogen atoms that terminate the dangling bonds of UNCD grains. Heterojunction diodes comprising p-type UNCD/a-C:H and ntype Si showed a strong photoresponse that originates from UNCD grains in the wavelength range between 200 and 280 nm. We experimentally proved that boron-doped UNCD/a-C:H is a new promising p-type semiconductor for photodetection.
本文言語 | 英語 |
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論文番号 | 090123 |
ジャーナル | Japanese journal of applied physics |
巻 | 51 |
号 | 9 |
DOI | |
出版ステータス | 出版済み - 9月 2012 |
!!!All Science Journal Classification (ASJC) codes
- 工学(全般)
- 物理学および天文学(全般)