Colloidal Zn(Te,Se)/ZnS Core/Shell Quantum Dots Exhibiting Narrow-Band and Green Photoluminescence

被引：33
作者：
Asano, Hiroshi [1 ]
Tsukuda, Satoshi [2 ]
Kita, Masao [3 ]
Fujimoto, Shinji [1 ]
Omata, Takahisa [1 ,2 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan
[2] Tohoku Univ, IMRAM, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
[3] Toyama Coll, Natl Coll Technol, Dept Mech Engn, 13 Hongo Machi, Toyama 9398630, Japan
来源：
ACS OMEGA | 2018年 / 3卷 / 06期
关键词：
NANOCRYSTALS; GROWTH; SHELL; CORE; WAVELENGTH; EPILAYERS; EPITAXY; GAP;
D O I：
10.1021/acsomega.8b00612
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Colloidal CdSe quantum dot (QD) phosphors have attracted considerable attention as green and red phosphors for blue backlight downconversion in next-generation liquid-crystal displays because of their excellent emission features including tunable emission wavelength and narrow emission bands. Alternatives to CdSe, which do not contain toxic cadmium, are strongly desired to ensure safety and reduce the environmental load of consumer products. Herein, we synthesized colloidal Zn(Te, Se)/ZnS core/shell QDs and demonstrated narrow-band green photoluminescence (PL) emission. A full width at half-maximum of 30 nm was achieved for PL emission at 535 nm from Zn(Te0.77Se0.23)/ZnS core/shell QDs with a core QD diameter of 4.3 nm. This emission characteristic was as good as that of CdSe QDs.
引用
收藏
页码：6703 / 6709
页数：7
相关论文
共 35 条
[1]   Progress in Non-Cd Quantum Dot Development for Lighting Applications [J].
Anc, M. J. ;
Pickett, N. L. ;
Gresty, N. C. ;
Harris, J. A. ;
Mishra, K. C. .
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, 2013, 2 (02) :R3071-R3082
[2]   Synthesis of colloidal Zn(Te,Se) alloy quantum dots [J].
Asano, H. ;
Arai, K. ;
Kita, M. ;
Omata, T. .
MATERIALS RESEARCH EXPRESS, 2017, 4 (10)
[3]   Design of cadmium-free colloidal II-VI semiconductor quantum dots exhibiting RGB emission [J].
Asano, Hiroshi ;
Omata, Takahisa .
AIP ADVANCES, 2017, 7 (04)
[4]   ZnTe/ZnSe (Core/Shell) Type-II Quantum Dots: Their Optical and Photovoltaic Properties [J].
Bang, Jiwon ;
Park, Juwon ;
Lee, Ji Hwang ;
Won, Nayoun ;
Nam, Jutaek ;
Lim, Jongwoo ;
Chang, Byoung Yong ;
Lee, Hyo Joong ;
Chon, Bonghwan ;
Shin, Junghan ;
Park, Jae Byung ;
Choi, Jong Hwa ;
Cho, Kilwon ;
Park, Su Moon ;
Joo, Taiha ;
Kim, Sungjee .
CHEMISTRY OF MATERIALS, 2010, 22 (01) :233-240
[5]   EVOLUTION OF THE BAND-GAP AND THE DOMINANT RADIATIVE RECOMBINATION CENTER VERSUS THE COMPOSITION FOR ZNSE1-XTEX ALLOYS GROWN BY MOLECULAR-BEAM EPITAXY [J].
BRASIL, MJSP ;
NAHORY, RE ;
TURCOSANDROFF, FS ;
GILCHRIST, HL ;
MARTIN, RJ .
APPLIED PHYSICS LETTERS, 1991, 58 (22) :2509-2511
[6]   High Performance AC Electroluminescence from Colloidal Quantum Dot Hybrids [J].
Cho, Sung Hwan ;
Sung, Jinwoo ;
Hwang, Ihn ;
Kim, Richard Hahnkee ;
Choi, Yeon Sik ;
Jo, Seoung Soon ;
Lee, Tae Woo ;
Park, Cheolmin .
ADVANCED MATERIALS, 2012, 24 (33) :4540-4546
[7]   Quantum Dots for LED Downconversion in Display Applications [J].
Coe-Sullivan, Seth ;
Liu, Wenhao ;
Allen, Peter ;
Steckel, Jonathan S. .
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, 2013, 2 (02) :R3026-R3030
[8]   (CdSe)ZnS core-shell quantum dots: Synthesis and characterization of a size series of highly luminescent nanocrystallites [J].
Dabbousi, BO ;
RodriguezViejo, J ;
Mikulec, FV ;
Heine, JR ;
Mattoussi, H ;
Ober, R ;
Jensen, KF ;
Bawendi, MG .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (46) :9463-9475
[9]   Facile synthesis of highly luminescent UV-blue emitting ZnSe/ZnS core/shell quantum dots by a two-step method [J].
Dong, Bohua ;
Cao, Lixin ;
Su, Ge ;
Liu, Wei .
CHEMICAL COMMUNICATIONS, 2010, 46 (39) :7331-7333
[10]   Growth and Characterization of Strained and Alloyed Type-II ZnTe/ZnSe Core-Shell Nanocrystals [J].
Fairclough, Simon M. ;
Tyrrell, Edward J. ;
Graham, Darren M. ;
Lunt, Patrick J. B. ;
Hardman, Samantha J. O. ;
Pietzsch, Annette ;
Hennies, Franz ;
Moghal, Jonathan ;
Flavell, Wendy R. ;
Watt, Andrew A. R. ;
Smith, Jason M. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (51) :26898-26907
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