Near-Infrared Organic Single-Crystal Lasers with Polymorphism-Dependent Excited State Intramolecular Proton Transfer

	Near-Infrared Organic Single-Crystal Lasers with Polymorphism-Dependent Excited State Intramolecular Proton Transfer
	Wang, Xuedong 1,2; Li, Zhi-Zhou 1; Li, Shi-Feng 3; Li, Hui 2; Chen, Jianwei 2; Wu, Yishi 2; Fu, Hongbing 2,4
刊名	ADVANCED OPTICAL MATERIALS
	2017-06-16
卷号	5 期号:12
关键词	Excited State Intramolecular Proton Transfer Four-level Energy Systems Near-infrared Organic Polymorphs Solid-state Lasers
英文摘要	Organic solid-state lasers (OSSLs) are broadly tunable coherent sources, potentially compact, convenient, and manufactured at low costs. As compared with conventional organic materials, organic molecules with excited state intramolecular proton-transfer (ESIPT) process are excellent active laser medium candidates due to their inherent four-level system. This study demonstrates the effect of the polymorphism-dependent ESIPT on the OSSLs. It is found the alpha-phase crystals with a low photoluminescence quantum efficiency of approximate to 2% emit two components: the tautomer A emissions and the tautomer B emissions, which indicate the noncomplete ESIPT case. For comparison, the beta-phase crystals with moderate intramolecular hydrogen-bonding emitting near-infrared photoluminescence have all tautomer B emissions, which are of relatively high photoluminescence quantum efficiency (approximate to 15%) and are redshifted by an average of approximate to 250 nm from the corresponding absorptions. The complete ESIPT process of the beta-phase crystals contributes to the amplified spontaneous near-infrared emission (lambda approximate to 730 nm) with a low threshold of approximate to 1.86 mu J cm(-2). This work has provided the platform for the investigation of the ESIPT lasers, which contributes to the high-performance organic solidstate near-infrared laser devices.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38994]
专题	化学研究所_光化学实验室
作者单位	1.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China 3.Beijing Univ Chem Technol, Changzhou Inst Adv Mat, Changzhou 213164, Jiangsu, Peoples R China 4.Capital Normal Univ, Dept Chem, Beijing Key Lab Opt Mat & Photon Devices, Beijing 100048, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xuedong,Li, Zhi-Zhou,Li, Shi-Feng,et al. Near-Infrared Organic Single-Crystal Lasers with Polymorphism-Dependent Excited State Intramolecular Proton Transfer[J]. ADVANCED OPTICAL MATERIALS,2017,5(12).
APA	Wang, Xuedong.,Li, Zhi-Zhou.,Li, Shi-Feng.,Li, Hui.,Chen, Jianwei.,...&Fu, Hongbing.(2017).Near-Infrared Organic Single-Crystal Lasers with Polymorphism-Dependent Excited State Intramolecular Proton Transfer.ADVANCED OPTICAL MATERIALS,5(12).
MLA	Wang, Xuedong,et al."Near-Infrared Organic Single-Crystal Lasers with Polymorphism-Dependent Excited State Intramolecular Proton Transfer".ADVANCED OPTICAL MATERIALS 5.12(2017).