Инд. авторы: Gavryushkin P.N., Isaenko L.I., Yelisseyev A.P., Gets V.A., Il'Ina O.S.
Заглавие: Growth, morphology and optical properties of γ-BiB 3O 6single crystals
Библ. ссылка: Gavryushkin P.N., Isaenko L.I., Yelisseyev A.P., Gets V.A., Il'Ina O.S. Growth, morphology and optical properties of γ-BiB 3O 6single crystals // Crystal Growth & Design. - 2012. - Vol.12. - Iss. 1. - P.75-78. - ISSN 1528-7483. - EISSN 1528-7505.
Внешние системы: DOI: 10.1021/cg200799n; SCOPUS: 2-s2.0-84855374968;
Реферат: eng: High quality γ-BiB 3O 6 single crystals up to 16 × 18 × 32 mm 3 in size were grown by the Kyropoulos technique. Indexes of the faces for as grown γ-BiB 3O 6 single crystals were determined, and transmission spectra were recorded in polarized light. The band gap was found to be E g = 3.982, 3.968, and 4.008 eV at 300 K for E∥a, b, and c, respectively. E g decreases linearly versus temperature with a dE g/dT = 0.00127 eV/deg rate for E∥a as temperature grows from 80 to 300 K. Photoluminescence in the broad 2.5 eV band, which is excited in a band near the fundamental absorption edge and quenches completely at 250 K, is associated with self-trapped excitons. © 2011 American Chemical Society.
Ключевые слова: Single crystals; Optical properties; Excitons; Transmission spectrums; Self-trapped exciton; High quality; Fundamental absorption edge; As-grown;
Издано: 2012
Физ. характеристика: с.75-78