Oligothiophene-S,S-dioxides as a class of electron-acceptor materials for organic photovoltaics

被引：44

作者：

Camaioni, N ^{[1
]}

Ridolfi, G ^{[1
]}

Fattori, V ^{[1
]}

Favaretto, L ^{[1
]}

Barbarella, G ^{[1
]}

机构：

[1] CNR, ISOF, I-40129 Bologna, Italy

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 11期

关键词：

D O I：

10.1063/1.1682681

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Oligothiophene-S,S-dioxides are proposed as electron acceptors materials in organic blended photovoltaic devices. Photoinduced charge transfer is demonstrated in blends between a regioregular poly(3-hexylthiophene) and the oligomers, via photoluminescence spectroscopy. The enhanced photovoltaic performance exhibited by the blended cells, with respect to that of pristine devices in which the polymer is the active layer, represents further evidence for exciton dissociation. An increase of the power conversion efficiency up to sixty-fold is achieved by blending the polymer with the oligothiophene-S,S-dioxides. (C) 2004 American Institute of Physics.

引用

页码：1901 / 1903

页数：3

共 22 条

[1] Barbarella G, 1998, ADV MATER, V10, P551, DOI 10.1002/(SICI)1521-4095(199805)10:7<551::AID-ADMA551>3.0.CO
[2] 2-Y
[3] Controlling the electronic properties of polythiophene through the insertion of nonaromatic thienyl S,S-dioxide units
Barbarella, G
Favaretto, L
Sotgiu, G
Zambianchi, M
Arbizzani, C
Bongini, A
Mastragostino, M
[J]. CHEMISTRY OF MATERIALS, 1999, 11 (09) : 2533 - 2541
[4] Oligothiophene-S,S-dioxides:: a new class of thiophene-based materials
Barbarella, G
Pudova, O
Arbizzani, C
Mastragostino, M
Bongini, A
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1998, 63 (05) : 1742 - 1745
[5] Oligothiophene S,S-dioxides.: Synthesis and electronic properties in relation to the parent oligothiophenes
Barbarella, G
Favaretto, L
Sotgiu, G
Zambianchi, M
Antolini, L
Pudova, O
Bongini, A
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1998, 63 (16) : 5497 - 5506
[6] Tuning solid-state photoluminescence frequencies and efficiencies of oligomers containing one central thiophene-S,S-dioxide unit
Barbarella, G
Favaretto, L
Sotgiu, G
Zambianchi, M
Bongini, A
Arbizzani, C
Mastragostino, M
Anni, M
Gigli, G
Cingolani, R
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (48) : 11971 - 11978
[7] Conformational profile, energy barriers and optical properties of quinquethiophene-S,S-dioxides
Bongini, A
Barbarella, G
Favaretto, L
Sotgiu, G
Zambianchi, M
Casarini, D
[J]. TETRAHEDRON, 2002, 58 (51) : 10151 - 10158
[8] Photoactive blends of poly(para-phenylenevinylene) (PPV) with methanofullerenes from a novel precursor:: Photophysics and device performance
Brabec, CJ
Cravino, A
Zerza, G
Sariciftci, NS
Kiebooms, R
Vanderzande, D
Hummelen, JC
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (08): : 1528 - 1536
[9] Chen LC, 2000, ADV MATER, V12, P1110, DOI 10.1002/1521-4095(200008)12:15<1110::AID-ADMA1110>3.0.CO
[10] 2-T

← 1 2 3 →