A planar organic near infrared light detector based on bulk heterojunction of a heteroquaterphenoquinone and poly[2-methoxy-5-,2′-ethyl-hexyloxy)-1, 4-phenylene vinylene

被引：28

作者：

Agostinelli, T. ^{[1
]}

Caironi, M. ^{[1
]}

Natali, D. ^{[1
]}

Sampietro, M. ^{[1
]}

Dassa, G. ^{[2
,3
]}

Canesi, E. V. ^{[2
,3
]}

Bertarelli, C. ^{[2
,3
]}

Zerbi, G. ^{[2
,3
]}

Cabanillas-Gonzalez, J. ^{[4
]}

De Silvestri, S. ^{[4
]}

Lanzani, G. ^{[4
]}

机构：

[1] Politecn Milan, Dipartimento Elettr & Informaz, Unita IIT, I-20133 Milan, Italy

[2] Politecn Milan, Dipartimento Chim Mat & Ingn Chim G Natta, I-20133 Milan, Italy

[3] INSTM Italian Interuniv Consortium Mat Sci & Tech, I-50121 Florence, Italy

[4] Politecn Milan, Dipartimento Fis, ULTRAS, INFM CNR, I-20133 Milan, Italy

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 11期

关键词：

D O I：

10.1063/1.3033376

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Planar organic detectors for the near infrared region of the light spectrum have been realized, processing from solution the quinoid molecule 5,5'-bis(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadiene-1-ylidene )-5,5'-dihydro-2,2'-bithiophene (QBT), which shows a peculiar absorption at 680 nm. Sensitization of the active material was obtained by creating a bulk donor-acceptor interface with poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene], which acts as hole acceptor. Photoexcitation and relaxation dynamics in pristine materials and bulk heterojunction have been investigated by means of pump-probe measurements, revealing charge transfer from QBT to polymer and efficient energy transfer the other way round. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3033376]

引用

页数：5

共 46 条

[1] Space charge effects on the active region of a planar organic photodetector [J].

Agostinelli, T. ;

Caironi, M. ;

Natali, D. ;

Sampietro, M. ;

Biagioni, P. ;

Finazzi, M. ;

Duo, L. .

JOURNAL OF APPLIED PHYSICS, 2007, 101 (11)

[2] Wavelength selectivities of organic photoconductive films: Dye-doped polysilanes and zinc phthalocyanine/tris-8-hydroxyquinoline aluminum double layer [J].

Aihara, S ;

Hirano, Y ;

Tajima, T ;

Tanioka, K ;

Abe, M ;

Saito, N ;

Kamata, N ;

Terunuma, D .

APPLIED PHYSICS LETTERS, 2003, 82 (04) :511-513

[3] Organic-based tristimuli colorimeter [J].

Antognazza, M. R. ;

Scherf, U. ;

Monti, P. ;

Lanzani, G. .

APPLIED PHYSICS LETTERS, 2007, 90 (16)

[4] Organic photovoltaics: technology and market [J].

Brabec, CJ .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2004, 83 (2-3) :273-292

[5] Two-step field-induced singlet dissociation in a fluorene trimer [J].

Cabanillas-Gonzalez, J ;

Antognazza, MR ;

Virgili, T ;

Lanzani, G ;

Gadermaier, C ;

Sonntag, M ;

Strohriegl, P .

PHYSICAL REVIEW B, 2005, 71 (15)

[6] Photophysics of charge transfer in a polyfluorene/violanthrone blend [J].

Cabanillas-Gonzalez, J ;

Virgili, T ;

Lanzani, G ;

Yeates, S ;

Ariu, M ;

Nelson, J ;

Bradley, DDC .

PHYSICAL REVIEW B, 2005, 71 (01)

[7] Kinetics of interfacial charges in hybrid GaAs/oligothiophene semiconducting heterojunctions [J].

Cabanillas-Gonzalez, Juan ;

Gambetta, Alessio ;

Zavelani-Rossi, Margherita ;

Lanzani, Guglielmo .

APPLIED PHYSICS LETTERS, 2007, 91 (12)

[8] Optical properties of a quinoid molecule [J].

D'Amore, F ;

Lanata, M ;

Gallazzi, MC ;

Zerbi, G .

CHEMICAL PHYSICS LETTERS, 2003, 377 (1-2) :243-248

[9]

Dittmer JJ, 2000, ADV MATER, V12, P1270, DOI 10.1002/1521-4095(200009)12:17<1270::AID-ADMA1270>3.0.CO

[10]

2-8

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