High scotopic/photopic ratio white-light-emitting diodes integrated with semiconductor nanophosphors of colloidal quantum dots

被引:32
作者
Nizamoglu, Sedat [1 ,2 ]
Erdem, Talha [1 ,2 ]
Demir, Hilmi Volkan [1 ,2 ,3 ]
机构
[1] Bilkent Univ, Dept Elect & Elect Engn, Dept Phys, TR-06800 Ankara, Turkey
[2] Bilkent Univ, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey
[3] Nanyang Technol Univ, Sch Elect & Elect Engn, Sch Phys & Math Sci, Singapore 639798, Singapore
基金
新加坡国家研究基金会;
关键词
NANOCRYSTALS; BRIGHT;
D O I
10.1364/OL.36.001893
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose and demonstrate single-chip white-light-emitting diodes (WLEDs) integrated with semiconductor nanophosphors of colloidal quantum dots for high scotopic/photopic (S/P) ratio. These color conversion WLEDs achieve S/P ratios over 3.00, which exceeds the current limit of 2.50 in common lighting technologies, while sustaining sufficient levels of color rendering index. (C) 2011 Optical Society of America
引用
收藏
页码:1893 / 1895
页数:3
相关论文
共 32 条
[1]   Energy-transfer pumping of semiconductor nanocrystals using an epitaxial quantum well [J].
Achermann, M ;
Petruska, MA ;
Kos, S ;
Smith, DL ;
Koleske, DD ;
Klimov, VI .
NATURE, 2004, 429 (6992) :642-646
[2]   Semiconductor clusters, nanocrystals, and quantum dots [J].
Alivisatos, AP .
SCIENCE, 1996, 271 (5251) :933-937
[3]   Electroluminescence from a mixed red-green-blue colloidal quantum dot monolayer [J].
Anikeeva, Polina O. ;
Halpert, Jonathan E. ;
Bawendi, Moungi G. ;
Bulovic, Vladimir .
NANO LETTERS, 2007, 7 (08) :2196-2200
[4]  
Banin U, 2008, NAT PHOTONICS, V2, P209, DOI 10.1038/nphoton.2008.40
[5]   Luminance-controlled pupil size affects word-reading accuracy - Response [J].
Berman, S ;
Fein, G ;
Jewett, D ;
Benson, B ;
Law, T ;
Myers, A .
JOURNAL OF THE ILLUMINATING ENGINEERING SOCIETY, 1996, 25 (01) :59-59
[6]  
Berman S. M., 1990, Lighting Research and Technology, V22, P37
[7]  
Berman SM, 2006, LIGHTING RES TECHNOL, V38, P41, DOI 10.1191/13657828061i155oa
[8]  
Berman S.M., 1992, Journal of the Illuminating Engineering Society, V21, P1
[9]   Lighting spectral effect on Landolt C performance is enhanced by blur and abolished by mydriasis - Discussion [J].
Lewis, AL .
JOURNAL OF THE ILLUMINATING ENGINEERING SOCIETY, 1996, 25 (01) :48-48
[10]   LUMINANCE-CONTROLLED PUPIL SIZE AFFECTS LANDOLT-C TASK-PERFORMANCE [J].
BERMAN, SM ;
FEIN, G ;
JEWETT, DL ;
ASHFORD, F .
JOURNAL OF THE ILLUMINATING ENGINEERING SOCIETY, 1993, 22 (02) :150-165