Polymer photodetector with voltage-adjustable photocurrent spectrum

被引：27

作者：

Chen, En- ^{[2
]}

Chang, Chia-Yu ^{[1
]}

Shieh, Ji-Ting ^{[2
]}

Tseng, Shin-Rong ^{[3
]}

Meng, Hsin-Fei ^{[1
]}

Hsu, Chain-Shu ^{[3
]}

Horng, Sheng-Fu ^{[2
]}

机构：

[1] Natl Chiao Tung Univ, Inst Phys, Hsinchu 300, Taiwan

[2] Natl Tsing Hua Univ, Inst Elect Engn, Hsinchu 300, Taiwan

[3] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 300, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 04期

关键词：

conducting polymers; electron-hole recombination; organic semiconductors; photodetectors; polymer blends;

D O I：

10.1063/1.3284648

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polymer photodetectors with voltage-adjustable photoresponse from visible to near infrared range are demonstrated. Poly(3-hexylthiophene) and (6,6)-phenyl-C61-butyric acid methyl ester (PCBM) blend is used as the active layer. The photoresponse can be continuously adjusted by the thickness of the active layer as well as the applied voltage bias. The thickness of the active layer is varied from 250 nm to 16.2 mu m. The mechanism for the photoresponse adjusted by the thickness can be attributed to the absorption of the photons in the infrared range by thick PCBM layer. The mechanism for the photoresponse adjusted by the applied bias can be attributed to the carrier recombination reduction when the applied bias increases. The adjustable photodetector also has high operating speed up to 10 kHz.

引用

页数：3

共 16 条

[1] Recombination distribution and color tuning of multilayer organic light-emitting diode [J].

Chen, CH ;

Meng, HF .

APPLIED PHYSICS LETTERS, 2005, 86 (20) :1-3

[2] Polymer infrared proximity sensor [J].

Chen, En-Chen ;

Tseng, Shin-Rong ;

Ju, Jia-Hong ;

Yang, Chia-Ming ;

Meng, Hsin-Fei ;

Horng, Sheng-Fu ;

Shu, Ching-Fong .

APPLIED PHYSICS LETTERS, 2008, 93 (06)

[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] A photophysical study of PCBM thin films [J].

Cook, Steffan ;

Ohkita, Hideo ;

Kim, Youngkyoo ;

Benson-Smith, Jessica J. ;

Bradley, Donal D. C. ;

Durrant, James R. .

CHEMICAL PHYSICS LETTERS, 2007, 445 (4-6) :276-280

[5] High-Detectivity Polymer Photodetectors with Spectral Response from 300 nm to 1450 nm [J].

Gong, Xiong ;

Tong, Minghong ;

Xia, Yangjun ;

Cai, Wanzhu ;

Moon, Ji Sun ;

Cao, Yong ;

Yu, Gang ;

Shieh, Chan-Long ;

Nilsson, Boo ;

Heeger, Alan J. .

SCIENCE, 2009, 325 (5948) :1665-1667

[6] Synthesis, Characterization, and Photovoltaic Properties of a Low Band Gap Polymer Based on Silole-Containing Polythiophenes and 2,1,3-Benzothiadiazole [J].

Hou, Jianhui ;

Chen, Hsiang-Yu ;

Zhang, Shaoqing ;

Li, Gang ;

Yang, Yang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (48) :16144-+

[7] A strong regioregularity effect in self-organizing conjugated polymer films and high-efficiency polythiophene: fullerene solar cells [J].

Kim, Y ;

Cook, S ;

Tuladhar, SM ;

Choulis, SA ;

Nelson, J ;

Durrant, JR ;

Bradley, DDC ;

Giles, M ;

Mcculloch, I ;

Ha, CS ;

Ree, M .

NATURE MATERIALS, 2006, 5 (03) :197-203

[8] High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends [J].

Li, G ;

Shrotriya, V ;

Huang, JS ;

Yao, Y ;

Moriarty, T ;

Emery, K ;

Yang, Y .

NATURE MATERIALS, 2005, 4 (11) :864-868

[9] Realization of polymeric optical integrated devices utilizing organic light-emitting diodes and photodetectors fabricated on a polymeric waveguide [J].

Ohmori, Y ;

Kajii, H ;

Kaneko, M ;

Yoshino, K ;

Ozaki, M ;

Fujii, A ;

Hikita, M ;

Takenaka, H ;

Taneda, T .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2004, 10 (01) :70-78

[10] Design, synthesis and properties of low band gap polyfluorenes for photovoltaic devices [J].

Perzon, E ;

Wang, XJ ;

Zhang, FL ;

Mammo, W ;

Delgado, JL ;

de la Cruz, P ;

Inganäs, O ;

Langa, F ;

Andersson, MR .

SYNTHETIC METALS, 2005, 154 (1-3) :53-56

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