Khomich A.A., Kudryavtsev O.S., Dolenko T.A., Shiryaev A.A., Fisenko A.V., Konov V.I., Vlasov I.I. Anomalous enhancement of nanodiamond luminescence upon heating. Laser Physics Letters , 2017 , 14. 025702. ISSN 1612-2011
|
Текст
khomich2017.pdf Загрузить (435kB) | Предварительный просмотр |
Аннотация
Characteristic photoluminescence (PL) of nanodiamonds (ND) of different origin (detonation, HPHT, extracted from meteorite) was studied in situ at high temperatures in the range 20–450 °C. Luminescence was excited using 473 nm laser and recorded in the range 500–800 nm. In contrast to decrease of point defect PL in bulk diamond with temperature, we found that the ND luminescence related to ND surface defects increases almost an order of magnitude upon heating to 200–250 °C. The observed effect reveals that water adsorbed on ND surfaces efficiently quenches PL; water desorption on heating leads to dramatic increase of the radiative de-excitation.
| Тип объекта: | Статья |
|---|---|
| Дополнительная информация: | Scopus - 85011320936 DOI - 10.1088/1612-202X/aa52f5 |
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Хомич А.А., Кудрявцев О.С., Доленко Т.А., Ширяев А.А., Фисенко А.В., Конов В.И., Власов И.И. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 218 лаб. химических методов технологии и анализа |
| URI: | http://cplire.ru:8080/id/eprint/3023 |
 |
Изменить объект |
