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Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂
The absorption spectra of thin films of ZnI₂ and K₂ZnI₄ layered compounds intercalated with CO₂ molecules have been investigated in temperature interval from 90 to 240 K. It is found that the intercalation results in high-frequency shift of exciton bands and their broadening. Considering the structu...
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НТК «Інститут монокристалів» НАН України
2009
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irk-123456789-1377202018-06-18T03:10:08Z Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ Yunakova, O.N. Miloslavsky, V.K. Kovalenko, E.N. Makovetsky, E.D. Characterization and properties The absorption spectra of thin films of ZnI₂ and K₂ZnI₄ layered compounds intercalated with CO₂ molecules have been investigated in temperature interval from 90 to 240 K. It is found that the intercalation results in high-frequency shift of exciton bands and their broadening. Considering the structure of ZnI₂ and K₂ZnI₄ crystal lattices, the most probable positions of CO₂ molecules in spacings between layers of compounds have been established. It is shown that, in K₂ZnI₄ compound, unlike ZnI₂, there are two position types of intercalant molecules with molecular axes of different orientation relative to the compound crystallographic axes. Досліджено спектри поглинання тонких плівок шаруватих сполук ZnI₂ та K₂ZnI₄, интеркальованих молекулами CO₂, у температурному інтервалі від 90 до 240 К. Виявлено, що інтеркаляція спричиняє високочастотний зсув екситонних смуг та їх розширення. Шляхом розгляду структур кристалічних граток ZnI₂ та K₂ZnI₄ визначено найімовірніші положення молекул CO₂ у міжшарових проміжках сполук. Показано, що, на відміну від ZnI₂, в K₂ZnI₄ існують два типи положень інтеркальованих молекул з різними орієнтаціями молекулярних осей відносно кристалографічних осей сполуки. Исследованы спектры поглощения тонких пленок слоистых соединений Znl2 и K₂ZnI₄, интеркалированных молекулами CO₂, в температурном интервале от 90 до 240 К. Обнаружено, что интеркаляция приводит к высокочастотному смещению экситонных полос и их расширению. Путем рассмотрения структур кристаллических решеток Znl2 и K₂ZnI₄ определены наиболее вероятные положения молекул CO₂ в межслоевых промежутках соединений. Показано, что, в отличие от Znl2, в K₂ZnI₄ существуют два типа положений интеркалированных молекул с различными ориентациями молекулярных осей относительно кристаллографических осей соединения. 2009 Article Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ // O.N. Yunakova, V.K. Miloslavsky, E.N. Kovalenko, E.D. Makovetsky // Functional Materials. — 2009. — Т. 16, № 2. — С. 130-135. — Бібліогр.: 13 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/137720 en Functional Materials НТК «Інститут монокристалів» НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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DSpace DC |
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English |
| topic |
Characterization and properties Characterization and properties |
| spellingShingle |
Characterization and properties Characterization and properties Yunakova, O.N. Miloslavsky, V.K. Kovalenko, E.N. Makovetsky, E.D. Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ Functional Materials |
| description |
The absorption spectra of thin films of ZnI₂ and K₂ZnI₄ layered compounds intercalated with CO₂ molecules have been investigated in temperature interval from 90 to 240 K. It is found that the intercalation results in high-frequency shift of exciton bands and their broadening. Considering the structure of ZnI₂ and K₂ZnI₄ crystal lattices, the most probable positions of CO₂ molecules in spacings between layers of compounds have been established. It is shown that, in K₂ZnI₄ compound, unlike ZnI₂, there are two position types of intercalant molecules with molecular axes of different orientation relative to the compound crystallographic axes. |
| format |
Article |
| author |
Yunakova, O.N. Miloslavsky, V.K. Kovalenko, E.N. Makovetsky, E.D. |
| author_facet |
Yunakova, O.N. Miloslavsky, V.K. Kovalenko, E.N. Makovetsky, E.D. |
| author_sort |
Yunakova, O.N. |
| title |
Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ |
| title_short |
Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ |
| title_full |
Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ |
| title_fullStr |
Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ |
| title_full_unstemmed |
Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ |
| title_sort |
absorption spectra of layered zni₂ and k₂zni₄ compounds intercalated with co₂ |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2009 |
| topic_facet |
Characterization and properties |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/137720 |
| citation_txt |
Absorption spectra of layered ZnI₂ and K₂ZnI₄ compounds intercalated with CO₂ // O.N. Yunakova, V.K. Miloslavsky, E.N. Kovalenko, E.D. Makovetsky // Functional Materials. — 2009. — Т. 16, № 2. — С. 130-135. — Бібліогр.: 13 назв. — англ. |
| series |
Functional Materials |
| work_keys_str_mv |
AT yunakovaon absorptionspectraoflayeredzni2andk2zni4compoundsintercalatedwithco2 AT miloslavskyvk absorptionspectraoflayeredzni2andk2zni4compoundsintercalatedwithco2 AT kovalenkoen absorptionspectraoflayeredzni2andk2zni4compoundsintercalatedwithco2 AT makovetskyed absorptionspectraoflayeredzni2andk2zni4compoundsintercalatedwithco2 |
| first_indexed |
2023-10-18T21:16:13Z |
| last_indexed |
2023-10-18T21:16:13Z |
| _version_ |
1796152375775330304 |