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Ion induced field effect in silicon in nematic liquid crystal cell
An influence of ion charge on surface conductivity of silicon in In₂O₃/5CB/monocrystal silicon/Al structure, in which a specific resistance of silicon is much less than a specific resistance of liquid crystal layer, was studied. Within the frequency range of 103-106 Hz of external voltage, a depleti...
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Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2003
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| Series: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/117991 |
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irk-123456789-1179912017-05-28T03:04:58Z Ion induced field effect in silicon in nematic liquid crystal cell Kucheev, S.I. Gritsenko, M.I. An influence of ion charge on surface conductivity of silicon in In₂O₃/5CB/monocrystal silicon/Al structure, in which a specific resistance of silicon is much less than a specific resistance of liquid crystal layer, was studied. Within the frequency range of 103-106 Hz of external voltage, a depletion state in silicon has been observed. We found that the field effect in silicon is induced by ion charges localized near silicon surface. It is shown that method based on visualization of n+ pockets on n-Si substrate by liquid crystal enables to estimate the impurity ion density near silicon surface. Analysis of the field effect induced by polarized charges formed by the prior action of DC voltage has allowed us to conclude that: 1) up to several volts of DC, a charge injection from silicon surface into liquid crystal is absent; 2) ion charge accumulated near silicon surface is partially adsorbed on silicon surface; 3) high voltage with "+" U polarity on silicon causes full absence of photosensitivity. We demonstrated that such type of structure could be used as liquid crystal spatial light modulator. 2003 Article Ion induced field effect in silicon in nematic liquid crystal cell / M.I. Gritsenko, S.I. Kucheev // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2003. — Т. 6, № 2. — С. 129-133. — Бібліогр.: 10 назв. — англ. 1560-8034 PACS: 77.84.Nh http://dspace.nbuv.gov.ua/handle/123456789/117991 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| language |
English |
| description |
An influence of ion charge on surface conductivity of silicon in In₂O₃/5CB/monocrystal silicon/Al structure, in which a specific resistance of silicon is much less than a specific resistance of liquid crystal layer, was studied. Within the frequency range of 103-106 Hz of external voltage, a depletion state in silicon has been observed. We found that the field effect in silicon is induced by ion charges localized near silicon surface. It is shown that method based on visualization of n+ pockets on n-Si substrate by liquid crystal enables to estimate the impurity ion density near silicon surface. Analysis of the field effect induced by polarized charges formed by the prior action of DC voltage has allowed us to conclude that: 1) up to several volts of DC, a charge injection from silicon surface into liquid crystal is absent; 2) ion charge accumulated near silicon surface is partially adsorbed on silicon surface; 3) high voltage with "+" U polarity on silicon causes full absence of photosensitivity. We demonstrated that such type of structure could be used as liquid crystal spatial light modulator. |
| format |
Article |
| author |
Kucheev, S.I. Gritsenko, M.I. |
| spellingShingle |
Kucheev, S.I. Gritsenko, M.I. Ion induced field effect in silicon in nematic liquid crystal cell Semiconductor Physics Quantum Electronics & Optoelectronics |
| author_facet |
Kucheev, S.I. Gritsenko, M.I. |
| author_sort |
Kucheev, S.I. |
| title |
Ion induced field effect in silicon in nematic liquid crystal cell |
| title_short |
Ion induced field effect in silicon in nematic liquid crystal cell |
| title_full |
Ion induced field effect in silicon in nematic liquid crystal cell |
| title_fullStr |
Ion induced field effect in silicon in nematic liquid crystal cell |
| title_full_unstemmed |
Ion induced field effect in silicon in nematic liquid crystal cell |
| title_sort |
ion induced field effect in silicon in nematic liquid crystal cell |
| publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| publishDate |
2003 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/117991 |
| citation_txt |
Ion induced field effect in silicon in nematic liquid crystal cell / M.I. Gritsenko, S.I. Kucheev // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2003. — Т. 6, № 2. — С. 129-133. — Бібліогр.: 10 назв. — англ. |
| series |
Semiconductor Physics Quantum Electronics & Optoelectronics |
| work_keys_str_mv |
AT kucheevsi ioninducedfieldeffectinsiliconinnematicliquidcrystalcell AT gritsenkomi ioninducedfieldeffectinsiliconinnematicliquidcrystalcell |
| first_indexed |
2023-10-18T20:31:04Z |
| last_indexed |
2023-10-18T20:31:04Z |
| _version_ |
1796150408404533248 |