- 作者: 黃龍池,魏台輝,夏淵龍,李俊明,杜佩玲,文在川
- 作者服務機構: Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 802, Taiwan, R.O.C.
- 中文摘要: The photoluminescence (PL) properties of CuBr and CuBr/AgBr semiconductor nanocrystals (NCs) embedded in borosilicate glasses are measured under band-to-band excitation by a 355-nm Nd:YAG laser. We observed emission from CuBr (peaked at 520 nm) doped glass, which is associated with deep states in CuBr NCs. We also observed the sensitized blue to orange-red emission in CuBr/AgBr-glass systems (peaked at 520 and 570 nm), in which the luminescence intensity of CuBr decreases with increasing AgBr concentrations, while it is enhanced significantly around 570 nm. The results are discussed by the possible energy transfer between them, or by the multi-exitonic recombination process which ejects an excited carrier from CuBr to AgBr NCs.
- 英文摘要: --
- 中文關鍵字: CuBr and AgBr NCs; Photoluminescence; Energy transfer; Auger recombination.
- 英文關鍵字: --