Amplified Spontaneous Green Emission and Lasing Emission From Carbon Nanoparticles

	Amplified Spontaneous Green Emission and Lasing Emission From Carbon Nanoparticles
	Qu S. N.; Liu X. Y.; Guo X. Y.; Chu M. H.; Zhang L. G.; Shen D. Z.
	2014
发表期刊	Advanced Functional Materials
ISSN	ISBN/1616-301X
卷号	24 期号:18 页码:2689-2695
摘要	In this work, the optical properties of carbon nanoparticles (CNPs) can be modulated by the dopant-N atom and sp(2) C-contents. CNPs prepared with the low urea mass ratio of 0.2:1 (CNP1) exhibit blue emission (maximum PL quantum yield: 15%). Increasing sp(2) C- and dopant-N atom contents, as determined in CNPs prepared with high urea mass ratio of 2:1 (CNP2), lead to green emission (maximum PL quantum yield up to 36% in ethanol aqueous solution). Amplified spontaneous emission (ASE) can be observed only in CNP2 ethanol aqueous solution. Green lasing emission is achieved from CNP2 ethanol aqueous solution in a linear long Fabry-Perot cavity, indicating the potential of CNP2 as a gain medium for lasing. CNP2 shows superior photostability compared with C545T dye. The green emission from CNP2 is speculated to arise from electron-hole recombination (intrinsic state emission). The high PL quantum yield and small overlap between absorption and emissions of CNP2 ethanol aqueous solution are the key factors in realizing lasing emission.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43724
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Qu S. N.,Liu X. Y.,Guo X. Y.,et al. Amplified Spontaneous Green Emission and Lasing Emission From Carbon Nanoparticles[J]. Advanced Functional Materials,2014,24(18):2689-2695.
APA	Qu S. N.,Liu X. Y.,Guo X. Y.,Chu M. H.,Zhang L. G.,&Shen D. Z..(2014).Amplified Spontaneous Green Emission and Lasing Emission From Carbon Nanoparticles.Advanced Functional Materials,24(18),2689-2695.
MLA	Qu S. N.,et al."Amplified Spontaneous Green Emission and Lasing Emission From Carbon Nanoparticles".Advanced Functional Materials 24.18(2014):2689-2695.

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