Your browser doesn't support javascript.
loading
Modulating electron population pathways for time-dependent dynamic multicolor displays.
Xu, Weixin; Lei, Lei; Wang, Yubin; Liu, Enyang; Chen, Liang; Xu, Shiqing.
Afiliação
  • Xu W; Institute of Optoelectronic Materials and Devices, Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China. leilei@cjlu.edu.cn.
  • Lei L; Institute of Optoelectronic Materials and Devices, Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China. leilei@cjlu.edu.cn.
  • Wang Y; Institute of Optoelectronic Materials and Devices, Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China. leilei@cjlu.edu.cn.
  • Liu E; Institute of Optoelectronic Materials and Devices, Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China. leilei@cjlu.edu.cn.
  • Chen L; Institute of Optoelectronic Materials and Devices, Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China. leilei@cjlu.edu.cn.
  • Xu S; Institute of Optoelectronic Materials and Devices, Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China. leilei@cjlu.edu.cn.
Mater Horiz ; 8(12): 3443-3448, 2021 11 29.
Article em En | MEDLINE | ID: mdl-34723303
Multicolor luminescent nanoparticles (NPs) show several potential emerging applications. In this work, we provide a new route that integrates the afterglow and upconversion (UC) that originate in a single activator to achieve color variations without the modulation of any other parameters. The Er3+ ions in Na3HfF7:Yb/Er NPs exhibit bright green afterglow upon X-ray irradiation and single-band red UC under 980 nm laser excitation, which are attributed to the significantly different electron population pathways. The UC intensity is stable and the afterglow decreases gradually over time, thus the output color is clearly changed from green to red naturally via illuminating the pre-X-ray-irradiated NPs with a 980 nm laser. Furthermore, the fine emission profiles of Er3+, Ho3+ and Tm3+ are achieved upon X-ray irradiation. Our results develop a new approach for time-dependent dynamic color displays and a simple route to revealing the electronic fine structures of lanthanide activators at room temperature.
Assuntos
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Elementos da Série dos Lantanídeos / Nanopartículas Idioma: En Revista: Mater Horiz Ano de publicação: 2021 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Elementos da Série dos Lantanídeos / Nanopartículas Idioma: En Revista: Mater Horiz Ano de publicação: 2021 Tipo de documento: Article