Long-lived photoinduced polaron formation in conjugated polyelectrolyte-fullerene assemblies

被引：56

作者：

Huber, Rachel C. ^{[1
]}

Ferreira, Amy S. ^{[1
]}

Thompson, Robert ^{[1
]}

Kilbride, Daniel ^{[1
]}

Knutson, Nicholas S. ^{[1
]}

Devi, Lekshmi Sudha ^{[1
]}

Toso, Daniel B. ^{[2
,3
]}

Challa, J. Reddy ^{[1
]}

Zhou, Z. Hong ^{[2
,3
,4
]}

Rubin, Yves ^{[1
]}

Schwartz, Benjamin J. ^{[1
,4
]}

Tolbert, Sarah H. ^{[1
,4
,5
]}

机构：

[1] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Microbiol Immunol & Mol Genet, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Biomed Engn Program, Los Angeles, CA 90095 USA

[4] Univ Calif Los Angeles, Calif NanoSyst Inst CNSI, Los Angeles, CA 90095 USA

[5] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

来源：

SCIENCE | 2015年 / 348卷 / 6241期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

CHARGE-TRANSFER; BULK-HETEROJUNCTION; SOLAR-CELLS; POLYMER; STATE; DYNAMICS; EXCITONS;

D O I：

10.1126/science.aaa6850

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The efficiency of biological photosynthesis results from the exquisite organization of photoactive elements that promote rapid movement of charge carriers out of a critical recombination range. If synthetic organic photovoltaic materials could mimic this assembly, charge separation and collection could be markedly enhanced. We show that micelle-forming cationic semiconducting polymers can coassemble in water with cationic fullerene derivatives to create photoinduced electron-transfer cascades that lead to exceptionally long-lived polarons. The stability of the polarons depends on the organization of the polymer-fullerene assembly. Properly designed assemblies can produce separated polaronic charges that are stable for days or weeks in aqueous solution.

引用

页码：1340 / 1343

页数：4

共 27 条

[1] Design and characterization of a femtosecond fluorescence spectrometer based on optical Kerr gating [J].

Arzhantsev, S ;

Maroncelli, M .

APPLIED SPECTROSCOPY, 2005, 59 (02) :206-220

[2] Small-angle scattering from polymeric mass fractals of arbitrary mass-fractal dimension [J].

Beaucage, G .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1996, 29 (pt 2) :134-146

[3]

Cassell AM, 1999, ANGEW CHEM INT EDIT, V38, P2403, DOI 10.1002/(SICI)1521-3773(19990816)38:16<2403::AID-ANIE2403>3.0.CO

[4]

2-J

[5]

Ceuster J.D., 2001, Physical Review B, V64, P195206

[6] ELECTRICAL-CONDUCTIVITY IN DOPED POLYACETYLENE [J].

CHIANG, CK ;

FINCHER, CR ;

PARK, YW ;

HEEGER, AJ ;

SHIRAKAWA, H ;

LOUIS, EJ ;

GAU, SC ;

MACDIARMID, AG .

PHYSICAL REVIEW LETTERS, 1977, 39 (17) :1098-1101

[7] Rheology and nanostructure of hydrophobically modified alginate (HMA) gels and solutions [J].

Choudhary, Soumitra ;

Bhatia, Surita R. .

CARBOHYDRATE POLYMERS, 2012, 87 (01) :524-530

[8] Self-Assembling Semiconducting Polymers-Rods and Gels from Electronic Materials [J].

Clark, Andrew P-Z. ;

Shi, Chenjun ;

Ng, Benny C. ;

Wilking, James N. ;

Ayzner, Alexander L. ;

Stieg, Adam Z. ;

Schwartz, Benjamin J. ;

Mason, Thomas G. ;

Rubin, Yves ;

Tolbert, Sarah H. .

ACS NANO, 2013, 7 (02) :962-977

[9] Self-Assembly of Poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} with Oppositely Charged Phenylenevinylene Oligoelectrolytes [J].

Costa, Telma ;

Marques, Ana T. ;

Sergio Seixas de Melo, J. ;

Thomas, Alexander W. ;

Garner, Logan E. ;

Scherf, Ullrich ;

Bazan, Guillermo C. ;

Burrows, Hugh D. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2014, 118 (02) :613-623

[10] The Binding Energy of Charge-Transfer Excitons Localized at Polymeric Semiconductor Heterojunctions [J].

Gelinas, Simon ;

Pare-Labrosse, Olivier ;

Brosseau, Colin-Nadeau ;

Albert-Seifried, Sebastian ;

McNeill, Christopher R. ;

Kirov, Kiril R. ;

Howard, Ian A. ;

Leonelli, Richard ;

Friend, Richard H. ;

Silva, Carlos .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (14) :7114-7119

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