TY  - SER
AU  - Burumbayeva,K.R.
AU  - Genin,Dmitrii E.
AU  - Ripenko,Vasilii S.
AU  - Shulepov,Mikhail A.
AU  - Tarasenko,Viktor Fedotovich
AU  - Lipatov,Evgeniy I.
TI  - Excitonic absorption and emission in diamond near the edge of fundamental absorption
KW  - алмаз
KW  - экситоны
KW  - катодолюминесцентные УФ-источники
KW  - фононы
KW  - статьи в журналах
N1  - Библиогр.: 23 назв
N2  - The study of optical absorption of CVD diamond near the fundamental absorption edge was performed in the temperature range of 87-296 K. At temperatures lower than 195 K the absorption was practically constant. At higher temperatures the sharp increase of absorption took place. This sharp increase was attributed to the sharp enrichment of the phonon spectrum. Same phonon modes have different contributions to the negative and the positive branches of freeexciton absorption. For the negative branch (phonon absorption) the TA-mode dominated. For the positive branch (phonon emission) the TO-mode dominated. The possibility of diamond-based cathodoluminescent UV-sources at 235 nm was demonstrated
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000634830
ER  -