Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures
For the first time, an anomalous strong increase of the Cr²⁺ emission intensity
 (I) with increasing the applied voltage (V) has been discovered in ZnS:Cr thin-film
 electroluminescent structures (TFELS) instead of the I(V) dependence saturation typical
 of TFELS of the MI...
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| Опубліковано в: : | Semiconductor Physics Quantum Electronics & Optoelectronics |
|---|---|
| Дата: | 2007 |
| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2007
|
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/118131 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures / N.A. Vlasenko, P.F. Oleksenko, Z.L. Denisova, M.A. Mukhlyo, L.I. Veligura // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2007. — Т. 10, № 3. — С. 87-90. — Бібліогр.: 13 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862751576865636352 |
|---|---|
| author | Vlasenko, N.A. Oleksenko, P.F. Denisova, Z.L. Mukhlyo, M.A. Veligura, L.I. |
| author_facet | Vlasenko, N.A. Oleksenko, P.F. Denisova, Z.L. Mukhlyo, M.A. Veligura, L.I. |
| citation_txt | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures / N.A. Vlasenko, P.F. Oleksenko, Z.L. Denisova, M.A. Mukhlyo, L.I. Veligura // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2007. — Т. 10, № 3. — С. 87-90. — Бібліогр.: 13 назв. — англ. |
| collection | DSpace DC |
| container_title | Semiconductor Physics Quantum Electronics & Optoelectronics |
| description | For the first time, an anomalous strong increase of the Cr²⁺ emission intensity
(I) with increasing the applied voltage (V) has been discovered in ZnS:Cr thin-film
electroluminescent structures (TFELS) instead of the I(V) dependence saturation typical
of TFELS of the MISIM type, where M is an electrode, I is an insulator layer and S is an
EL film. The dependence of I on the transferred charge (Q) is very superlinear, whereas
the luminance of the emission of hot electrons, which takes place simultaneously with the
Cr²⁺ emission, increases proportionally to Q as it happens usually in TFELS. The
increase of I and Q is accompanied by rising the sample temperature up to 30 – 50 °C.
However, the emission spectrum that is inherent to the ⁵E → ⁵T₂ transition in the 3d shell
of a Cr²⁺ ion is not changed in this case. The above effects are explained by Cr⁺ → Cr²⁺
thermofield recharging, which results in an increase of the number not only of free
electrons, but also of Cr²⁺ radiation centers. The most probable mechanism of such a
recharging is the Frenkel-Pool field-stimulated thermal ionization of Cr⁺
ions, whose ionization energy is 0.65…0.82 eV.
|
| first_indexed | 2025-12-07T21:12:15Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-118131 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1560-8034 |
| language | English |
| last_indexed | 2025-12-07T21:12:15Z |
| publishDate | 2007 |
| publisher | Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| record_format | dspace |
| spelling | Vlasenko, N.A. Oleksenko, P.F. Denisova, Z.L. Mukhlyo, M.A. Veligura, L.I. 2017-05-28T18:05:01Z 2017-05-28T18:05:01Z 2007 Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures / N.A. Vlasenko, P.F. Oleksenko, Z.L. Denisova, M.A. Mukhlyo, L.I. Veligura // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2007. — Т. 10, № 3. — С. 87-90. — Бібліогр.: 13 назв. — англ. 1560-8034 PACS 78.60.Fi, 73.50.Fq, 71.55.Gs, 68.55.L https://nasplib.isofts.kiev.ua/handle/123456789/118131 For the first time, an anomalous strong increase of the Cr²⁺ emission intensity
 (I) with increasing the applied voltage (V) has been discovered in ZnS:Cr thin-film
 electroluminescent structures (TFELS) instead of the I(V) dependence saturation typical
 of TFELS of the MISIM type, where M is an electrode, I is an insulator layer and S is an
 EL film. The dependence of I on the transferred charge (Q) is very superlinear, whereas
 the luminance of the emission of hot electrons, which takes place simultaneously with the
 Cr²⁺ emission, increases proportionally to Q as it happens usually in TFELS. The
 increase of I and Q is accompanied by rising the sample temperature up to 30 – 50 °C.
 However, the emission spectrum that is inherent to the ⁵E → ⁵T₂ transition in the 3d shell
 of a Cr²⁺ ion is not changed in this case. The above effects are explained by Cr⁺ → Cr²⁺
 thermofield recharging, which results in an increase of the number not only of free
 electrons, but also of Cr²⁺ radiation centers. The most probable mechanism of such a
 recharging is the Frenkel-Pool field-stimulated thermal ionization of Cr⁺
 ions, whose ionization energy is 0.65…0.82 eV. en Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України Semiconductor Physics Quantum Electronics & Optoelectronics Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures Article published earlier |
| spellingShingle | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures Vlasenko, N.A. Oleksenko, P.F. Denisova, Z.L. Mukhlyo, M.A. Veligura, L.I. |
| title | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures |
| title_full | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures |
| title_fullStr | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures |
| title_full_unstemmed | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures |
| title_short | Thermofield Cr→Cr²⁺ recharging resulting in anomalous intensification of Cr²⁺ emission in ZnS:Cr thin-film electroluminescent structures |
| title_sort | thermofield cr→cr²⁺ recharging resulting in anomalous intensification of cr²⁺ emission in zns:cr thin-film electroluminescent structures |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/118131 |
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