A highly efficient and stable green-emitting mesoporous silica (MP)–(Cs0.4Rb0.6)PbBr3 perovskite composite for application in optoelectronic devices. (8th November 2017)

• Record Type: Journal Article
• Authors: Song, Young Hyun; Choi, Seung Hee; Park, Won Kyu; Yoo, Jin Sun; Kang, Bong Kyun; Kwon, Seok Bin; Jung, Hyun Suk; Yang, Woo Seok; Yoon, Dae Ho
• Is Part Of: New journal of chemistry. Volume 41:Number 23(2017)
• Page Start: 14076
• Page End: 14079
• Publication Date: 2017-11-08
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj03161k
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Mesoporous silica efficiently improved the stability of green-emitting (Cs0.4 Rb0.6 )PbBr3 . A down-conversion white LED was characterized. Abstract : We have, for the first time, reported a highly efficient MP–(Cs0.4 Rb0.6 )PbBr3 luminescent material for application in optoelectronic devices. MP–(Cs0.4 Rb0.6 )PbBr3 with red-emitting Sr2 Si5 N8 :Eu 2+ phosphor is applied to an InGaN blue chip and compared with green-emitting (Cs0.4 Rb0.6 )PbBr3 perovskite nanocrystals (NCs). MP–(Cs0.4 Rb0.6 )PbBr3 achieves a conversion efficiency of 80.9 lm W −1 under a forward-bias current of 150 mA. We propose MP–(Cs0.4 Rb0.6 )PbBr3 as a promising green-emitting material that can replace the conventional inorganic phosphor.