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Highly luminescent copper-doped ultrathin CdSe nanoplatelets for white-light generationстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 июля 2020 г.
- Авторы: Saidzhonov Bedil M., Zaytsev Vladimir B., Berekchiian Mikhail V., Vasiliev Roman B.
- Журнал: Journal of Luminescence
- Том: 222
- Год издания: 2020
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 117134-1
- Последняя страница: 117134-9
- DOI: 10.1016/j.jlumin.2020.117134
- Аннотация: In this work, the potential of ultrathin pure and copper-doped CdSe nanoplatelets (NPLs) for white-light generation is studied. It is shown that thin populations of CdSe NPLs synthesized at relatively low growth temperatures generate white-light due to combining the band-edge and broad trap-assisted emissions. It is found that the luminescence and photometric properties of the CdSe NPLs can be tailored in a wide range simply by changing their growth temperature. As-grown CdSe NPLs can generate white light with a color rendering index (CRI) as high as 75 and color coordinates of (0.31, 0.33) at a correlated color temperature (CCT) of 6438K. Further, to avoid the well-known re-absorption problem and increase photoluminescence quantum yield (PL QY) of the samples, the thinnest population of CdSe NPLs is doped with copper. It is demonstrated that by copper-doping, the band-edge emission of ultrathin CdSe NPLs can be fully suppressed. Copper-induced emission covers a wavelength range of 400–700nm with PL QY reaching values up to 95%. By integrating the undoped and copper-doped ultrathin CdSe NPLs on top of UV chip, light-emitting devices (LED) emitting within the white-light region of the CIE 1931 chromaticity diagram are fabricated.
- Добавил в систему: Васильев Роман Борисович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Доступ к тексту до 17 апреля 2020 | 50days_free_access.docx | 12,9 КБ | 27 февраля 2020 [Vladimir_Zaytsev] |