Organic and Inorganic Blocking Layers for Solution-Processed Colloidal PbSe Nanocrystal Infrared Photodetectors

被引：87

作者：

Sarasqueta, Galileo ^{[1
]}

Choudhury, Kaushik Roy ^{[1
]}

Subbiah, Jegadesan ^{[1
]}

So, Franky ^{[1
]}

机构：

[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2011年 / 21卷 / 01期

关键词：

LIGHT-EMITTING-DIODES; QUANTUM DOTS; EFFICIENT; POLYMER;

D O I：

10.1002/adfm.201001328

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A PbSe solution-processed nanocrystal-based infrared photodetector incorporating carrier blocking layers is demonstrated, and significant reduction of dark current is achieved. Detectivity values close to 10(12) Jones are achieved by using poly[(9,9'-dioctylfluorenyl-2,7-diyl)-co-(4,4'-(N-(4-sec-butyl))diphenylamine)] (TFB) and ZnO nanocrystals (NC) as the electron blocker and hole blocker, respectively. An improvement in lifetime is also observed in the devices with the ZnO NCs hole blocking layer.

引用

页码：167 / 171

页数：5

共 32 条

[1] Highly Efficient Green-Light-Emitting Diodes Based on CdSe@ZnS Quantum Dots with a Chemical-Composition Gradient [J].

Bae, Wan Ki ;

Kwak, Jeonghun ;

Park, Ji Won ;

Char, Kookheon ;

Lee, Changhee ;

Lee, Seonghoon .

ADVANCED MATERIALS, 2009, 21 (17) :1690-+

[2] Photoluminescence of ZnO quantum dots produced by a sol-gel process [J].

Bera, Debasis ;

Qian, Lei ;

Sabui, Subir ;

Santra, Swadeshmukul ;

Holloway, Paul H. .

OPTICAL MATERIALS, 2008, 30 (08) :1233-1239

[3] Nanoparticle-assisted high photoconductive gain in composites of polymer and fullerene [J].

Chen, Hsiang-Yu ;

Lo, Michael K. F. ;

Yang, Guanwen ;

Monbouquette, Harold G. ;

Yang, Yang .

NATURE NANOTECHNOLOGY, 2008, 3 (09) :543-547

[4] PbSe Nanocrystal Excitonic Solar Cells [J].

Choi, Joshua J. ;

Lim, Yee-Fun ;

Santiago-Berrios, Mitk'El B. ;

Oh, Matthew ;

Hyun, Byung-Ryool ;

Sung, Liangfeng ;

Bartnik, Adam C. ;

Goedhart, Augusta ;

Malliaras, George G. ;

Abruna, Hector D. ;

Wise, Frank W. ;

Hanrath, Tobias .

NANO LETTERS, 2009, 9 (11) :3749-3755

[5] The effect of interfacial layer on the performance of organic light-emitting diodes [J].

Choulis, SA ;

Choong, VE ;

Mathai, MK ;

So, F .

APPLIED PHYSICS LETTERS, 2005, 87 (11)

[6] Tuning acceptor energy level for efficient charge collection in copper-phthalocyanine-based organic solar cells [J].

Chu, CW ;

Shrotriya, V ;

Li, G ;

Yang, Y .

APPLIED PHYSICS LETTERS, 2006, 88 (15)

[7] Improved optical properties of US quantum dots by ligand exchange [J].

Comparelli, R ;

Zezza, F ;

Striccoli, M ;

Curri, ML ;

Tommasi, R ;

Agostiano, A .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2003, 23 (6-8) :1083-1086

[8] Stability Study of PbSe Semiconductor Nanocrystals over Concentration, Size, Atmosphere, and Light Exposure [J].

Dai, Quanqin ;

Wang, Yingnan ;

Zhang, Yu ;

Li, Xinbi ;

Li, Ruowang ;

Zou, Bo ;

Seo, JaeTae ;

Wang, Yiding ;

Liu, Manhong ;

Yu, William W. .

LANGMUIR, 2009, 25 (20) :12320-12324

[9] Hole Injection in a Model Fluorene-Triarylamine Copolymer [J].

Fong, Hon Hang ;

Papadimitratos, Alexis ;

Hwang, Joehyung ;

Kahn, Antoine ;

Malliaras, George G. .

ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (02) :304-310

[10] Double and triple junction polymer solar cells processed from solution [J].

Gilot, Jan ;

Wienk, Martijn M. ;

Janssen, Rene A. J. .

APPLIED PHYSICS LETTERS, 2007, 90 (14)

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