摘要
The photovoltage spectra of tin oxide/porous silicon/silicon (SnO2/PS/Si) has been studied. It is shown that there exist two heterojunctions in SnO2/PS/Si structure. The photovoltage decreases evidently when the sample absorbs reducing gas. The photovoltage decreases by 16.4-27.5 percent when the absorbed gas contains 1 percent liquified petroleum, by 8.1-19.4 percent when the sample absorbs gas with 1 percent CO, and by 12.1-14.9 percent when the sample absorbs gas with 1 percent H2. The experimental results indicate that SnO2/PS/Si is a good material for gas sensor. The mechanism for the gas absorption of SnO2/PS/Si is discussed.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 43-48 |
| 页数 | 6 |
| 期刊 | Guti Dianzixue Yanjiu Yu Jinzhan/Research and Progress of Solid State Electronics |
| 卷 | 18 |
| 期 | 1 |
| 出版状态 | 已出版 - 1998 |
| 已对外发布 | 是 |
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可持续发展目标 7 经济适用的清洁能源
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