Solution-processed pentacene quantum-dot polymeric nanocomposite for infrared photodetection

被引:20
作者
Choudhury, Kaushik Roy
Kim, Won Jin
Sahoo, Yudhisthira
Lee, Kwang-Sup [1 ]
Prasad, Paras N.
机构
[1] SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA
[2] Hannam Univ, Dept Polymer Sci & Engn, Taejon 306791, South Korea
[3] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA
基金
美国国家科学基金会; 新加坡国家研究基金会;
关键词
D O I
10.1063/1.2266791
中图分类号
O59 [应用物理学];
学科分类号
摘要
An organic/inorganic polymeric nanocomposite thin film device, consisting of poly-N-vinyl carbazole as host matrix, lead selenide quantum dots as photosensitizer, and the organic semiconductor pentacene as a conductivity booster, is fabricated. Because of the inherent insolubility of pentacene, it is incorporated in the form of a soluble precursor which is made to undergo thermal conversion into pentacene. The device exhibits dramatic enhancement of infrared photocurrent due to pentacene. Efficient photogeneration of carriers coupled with enhanced conductance results in high photoconductive quantum efficiency.
引用
收藏
页数:3
相关论文
共 17 条
[1]   High-performance, solution-processed organic thin film transistors from a novel pentacene precursor [J].
Afzali, A ;
Dimitrakopoulos, CD ;
Breen, TL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (30) :8812-8813
[2]   Extrinsic and intrinsic dc photoconductivity in a conjugated polymer [J].
Barth, S ;
Bassler, H ;
Rost, H ;
Horhold, HH .
PHYSICAL REVIEW B, 1997, 56 (07) :3844-3851
[3]   Efficient photoconductive devices at infrared wavelengths using quantum dot-polymer nanocomposites [J].
Choudhury, KR ;
Sahoo, Y ;
Ohulchanskyy, TY ;
Prasad, PN .
APPLIED PHYSICS LETTERS, 2005, 87 (07)
[4]   Hybrid quantum-dot-polymer nanocomposites for infrared photorefractivity at an optical communication wavelength [J].
Choudhury, KR ;
Sahoo, Y ;
Prasad, PN .
ADVANCED MATERIALS, 2005, 17 (23) :2877-+
[5]   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
[6]   ORGANIC TRANSISTORS - 2-DIMENSIONAL TRANSPORT AND IMPROVED ELECTRICAL CHARACTERISTICS [J].
DODABALAPUR, A ;
TORSI, L ;
KATZ, HE .
SCIENCE, 1995, 268 (5208) :270-271
[7]   Electrically switchable mesoscale Penrose quasicrystal structure [J].
Gorkhali, SP ;
Qi, J ;
Crawford, GP .
APPLIED PHYSICS LETTERS, 2005, 86 (01) :011110-1
[8]   Laminated fabrication of polymeric photovoltaic diodes [J].
Granström, M ;
Petritsch, K ;
Arias, AC ;
Lux, A ;
Andersson, MR ;
Friend, RH .
NATURE, 1998, 395 (6699) :257-260
[9]   Hybrid nanorod-polymer solar cells [J].
Huynh, WU ;
Dittmer, JJ ;
Alivisatos, AP .
SCIENCE, 2002, 295 (5564) :2425-2427
[10]   Charge transport in hybrid nanorod-polymer composite photovoltaic cells [J].
Huynh, WU ;
Dittmer, JJ ;
Teclemariam, N ;
Milliron, DJ ;
Alivisatos, AP ;
Barnham, KWJ .
PHYSICAL REVIEW B, 2003, 67 (11) :12