Mn-doped nanocrystals in light-emitting diodes: Energy-transfer to obtain electroluminescence from quantum dots

被引：41

作者：

Rath, Arup K. ^{[1
]}

Bhaumik, Saikat ^{[1
]}

Pal, Amlan J. ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, India

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 11期

关键词：

POLYMER; ZNS; PHOTOLUMINESCENCE; DEVICES; BRIGHT;

D O I：

10.1063/1.3489099

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We fabricate light-emitting diodes (LEDs) based on Mn-doped ZnS nanocrystals along with hole-transporting N,N' bis(3-methylphenyl)-N,N'-diphenyl-benzidine (TPD). With Mn-doping, ZnS nanostructures exhibit a strong photoluminescence. The LEDs exhibit electroluminescence (EL) from Mn-doped ZnS quantum dots and TPD. In order to open up channels for energy-transfer from TPD to quantum dots and to achieve EL from only the nanoparticles, we grow core-shell nanoparticles with Mn-doped ZnS in the core and CdS as the shell layer. Excitons formed in TPD can now transfer their energy directly to the shell-layer to yield EL from only the nanoparticles. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3489099]

引用

页数：3

共 25 条

[1] White organic light-emitting devices incorporating nanoparticles of II-VI semiconductors [J].

Ahn, Jin H. ;

Bertoni, Cristina ;

Dunn, Steve ;

Wang, Changsheng ;

Talapin, Dmitri V. ;

Gaponik, Nikolai ;

Eychmueller, Alexander ;

Hua, Yulin ;

Bryce, Martin R. ;

Petty, Michael C. .

NANOTECHNOLOGY, 2007, 18 (33)

[2] Electronic and excitonic processes in light-emitting devices based on organic materials and colloidal quantum dots [J].

Anikeeva, P. O. ;

Madigan, C. F. ;

Halpert, J. E. ;

Bawendi, M. G. ;

Bulovic, V. .

PHYSICAL REVIEW B, 2008, 78 (08)

[3] Quantum Dot Light-Emitting Devices with Electroluminescence Tunable over the Entire Visible Spectrum [J].

Anikeeva, Polina O. ;

Halpert, Jonathan E. ;

Bawendi, Moungi G. ;

Bulovic, Vladimir .

NANO LETTERS, 2009, 9 (07) :2532-2536

[4] OPTICAL-PROPERTIES OF MANGANESE-DOPED NANOCRYSTALS OF ZNS [J].

BHARGAVA, RN ;

GALLAGHER, D ;

HONG, X ;

NURMIKKO, A .

PHYSICAL REVIEW LETTERS, 1994, 72 (03) :416-419

[5] White-light emission from organics-capped ZnSe quantum dots and application in white-light-emitting diodes [J].

Chen, HS ;

Wang, SJJ ;

Lo, CJ ;

Chi, JY .

APPLIED PHYSICS LETTERS, 2005, 86 (13) :1-3

[6] Energy transfer in hybrid quantum dot light-emitting diodes [J].

Chin, Patrick T. K. ;

Hikmet, Rifat A. M. ;

Janssen, Rene A. J. .

JOURNAL OF APPLIED PHYSICS, 2008, 104 (01)

[7] Electroluminescence from single monolayers of nanocrystals in molecular organic devices [J].

Coe, S ;

Woo, WK ;

Bawendi, M ;

Bulovic, V .

NATURE, 2002, 420 (6917) :800-803

[8] Inkjet printing of light emitting quantum dots [J].

Haverinen, Hanna M. ;

Myllyla, Risto A. ;

Jabbour, Ghassan E. .

APPLIED PHYSICS LETTERS, 2009, 94 (07)

[9] Photoluminescence and electroluminescence of ZnS:Cu nanocrystals in polymeric networks [J].

Huang, JM ;

Yang, Y ;

Xue, SH ;

Yang, B ;

Liu, SY ;

Shen, JC .

APPLIED PHYSICS LETTERS, 1997, 70 (18) :2335-2337

[10]

Malik MA, 2001, J MATER CHEM, V11, P2382

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