Core-shell-like Y2O3:[(Tb3+-Yb3+), Li+]/CdZnS heterostructure synthesized by super-close-space sublimation for broadband down-conversion

	Core-shell-like Y2O3:[(Tb3+-Yb3+), Li+]/CdZnS heterostructure synthesized by super-close-space sublimation for broadband down-conversion
	Wu, Xiaojie ; Zhang, Zhenzhong ; Meng, Fanzhi ; Yu,Yingning ; Han,Lin ; Liu,Xiaojuan ; Meng,Jian
刊名	nanoscale
	2014
卷号	6 期号:9 页码:4745-4749
关键词	NANOCRYSTALS
ISSN号	2040-3364
通讯作者	zhang,zz
中文摘要	combination with semiconductors is a promising approach to the realization of broadband excitation of light conversion materials based on rare earth compounds, to boost the energy efficiency of silicon solar cells. cd1-xznxs is a wide bandgap semiconductor with large exciton binding energy. by changing its composition, the bandgap of cd1-xznxs can be tuned to match the absorption of trivalent lanthanide (ln) ions, which makes it a competent energy donor for the ln(3+)-yb3+ couple. in this work, we designed a clean route to a broadband down-converter based on a core-shell-like y2o3:[(tb3+-yb3+), li+]/cd0.81zn0.19s (cdzns) heterostructure. by hot-pressing and subsequent annealing of a y2o3:[(tb3+ -yb3+), li+]/cdzns mixture, highly pure cdzns was sublimated and deposited on the y2o3:[(tb3+-yb3+), li+] grains while maintaining the original composition of the precursor. the cdzns shell acted as a light absorber and energy donor for the tb3+-yb3+ quantum cutting couple. because the use of solvents was avoided during the formation of the heterostructures, few impurities were incorporated into the samples, and the non-radiative transition was therefore markedly suppressed. the y2o3:[(tb3+-yb3+), li+]/cdzns heterostructures possess strong near-infrared (nir) luminescence from yb3+. broadband down-conversion to the yb3+ nir emission was obtained in a wide range of 250-650 nm.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2015-03-26
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/50706]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wu, Xiaojie,Zhang, Zhenzhong,Meng, Fanzhi,et al. Core-shell-like Y2O3:[(Tb3+-Yb3+), Li+]/CdZnS heterostructure synthesized by super-close-space sublimation for broadband down-conversion[J]. nanoscale,2014,6(9):4745-4749.
APA	Wu, Xiaojie.,Zhang, Zhenzhong.,Meng, Fanzhi.,Yu,Yingning.,Han,Lin.,...&Meng,Jian.(2014).Core-shell-like Y2O3:[(Tb3+-Yb3+), Li+]/CdZnS heterostructure synthesized by super-close-space sublimation for broadband down-conversion.nanoscale,6(9),4745-4749.
MLA	Wu, Xiaojie,et al."Core-shell-like Y2O3:[(Tb3+-Yb3+), Li+]/CdZnS heterostructure synthesized by super-close-space sublimation for broadband down-conversion".nanoscale 6.9(2014):4745-4749.