Probing Inter- and Intrachain Exciton Coupling in Isolated Poly(3-hexylthiophene) Nanofibers: Effect of Solvation and Regioregularity

被引：54

作者：

Baghgar, Mina ^{[1
]}

Labastide, Joelle ^{[2
]}

Bokel, Felicia

Dujovne, Irene ^{[2
]}

McKenna, Aidan ^{[3
]}

Barnes, Austin M. ^{[1
]}

Pentzer, Emily

Emrick, Todd

Hayward, Ryan

Barnes, Michael D. ^{[1
,2
]}

机构：

[1] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[2] Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA

[3] Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2012年 / 3卷 / 12期

关键词：

FILMS;

D O I：

10.1021/jz3005909

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report wavelength and time-resolved photoluminescence studies of isolated extended (1-10 mu m length) poly(3-hexylthiophene) (P3HT) nanofibers (xNFs) cast on glass from suspension. The PL spectra of xNFs show multiple vibronic replicas that appear to be associated with the existence of both H- and J-type aggregates. The PL spectra of xNFs made from regioregular (rr)- (93%) and highly regioregular (hrr)-P3HT (98%) both show similarities in PL spectra suggestive of common chain packing features, as well as subtle differences that can be attributed to higher long-range order in the hrr-xNFs. Specifically, PL spectral measurements on isolated xNFs made from highly regioregular (>98%) P3HT showed a red-shifted electronic origin (approximate to 30 meV) and increased 0-0/0-1 PL intensity ratio for the J-type species, suggestive of enhanced structural coherence length and intrachain order.

引用

页码：1674 / 1679

页数：6

共 27 条

[1] Regioregularity and Single Polythiophene Chain Conformation [J].

Adachi, Takuji ;

Brazard, Johanna ;

Ono, Robert J. ;

Hanson, Benjamin ;

Traub, Matthew C. ;

Wu, Zong-Quan ;

Li, Zicheng ;

Bolinger, Joshua C. ;

Ganesan, Venkat ;

Bielawski, Christopher W. ;

Bout, David A. Vanden ;

Barbara, Paul F. .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2011, 2 (12) :1400-1404

[2] Poly (3-hexylthiophene) fibers for photovoltaic applications [J].

Berson, Solenn ;

De Bettignies, Remi ;

Bailly, Severine ;

Guillerez, Stephane .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (08) :1377-1384

[3] Highly Oriented and Nanotextured Films of Regioregular Poly(3-hexylthiophene) Grown by Epitaxy on the Nanostructured Surface of an Aromatic Substrate [J].

Brinkmann, Martin ;

Contal, Christophe ;

Kayunkid, Navaphun ;

Djuric, Tatjana ;

Resel, Roland .

MACROMOLECULES, 2010, 43 (18) :7604-7610

[4] Molecular Weight Dependence of Chain Packing and Semicrystalline Structure in Oriented Films of Regioregular Poly(3-hexylthiophene) Revealed by High-Resolution Transmission Electron Microscopy [J].

Brinkmann, Martin ;

Rannou, Patrice .

MACROMOLECULES, 2009, 42 (04) :1125-1130

[5] Self-assembly, molecular packing, and electron transport in n-type polymer semiconductor nanobelts [J].

Briseno, Alejandro L. ;

Mannsfeld, Stefan C. B. ;

Shamberger, Patrick J. ;

Ohuchi, Fumio S. ;

Bao, Zhenan ;

Jenekhe, Samson A. ;

Xia, Younan .

CHEMISTRY OF MATERIALS, 2008, 20 (14) :4712-4719

[6] Interchain interaction and Davydov splitting in polythiophene crystals:: An ab initio approach [J].

Bussi, G ;

Ruini, A ;

Molinari, E ;

Caldas, MJ ;

Puschnig, P ;

Ambrosch-Draxl, C .

APPLIED PHYSICS LETTERS, 2002, 80 (22) :4118-4120

[7] Role of intermolecular coupling in the photophysics of disordered organic semiconductors: Aggregate emission in regioregular polythiophene [J].

Clark, Jenny ;

Silva, Carlos ;

Friend, Richard H. ;

Spano, Frank C. .

PHYSICAL REVIEW LETTERS, 2007, 98 (20)

[8] Resonance Raman Spectroscopic- and Photocurrent Imaging of Polythiophene/Fullerene Solar Cells [J].

Gao, Yongqian ;

Martin, Thomas P. ;

Thomas, Alan K. ;

Grey, John K. .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (01) :178-182

[9] Singlet Exciton Fission in Nanostructured Organic Solar Cells [J].

Jadhav, Priya J. ;

Mohanty, Aseema ;

Sussman, Jason ;

Lee, Jiye ;

Baldo, Marc A. .

NANO LETTERS, 2011, 11 (04) :1495-1498

[10] Nanostructured semiconductor block copolymers:: π-π Stacking, optical and electrochemical properties [J].

Lindner, Stefan M. ;

Kaufmann, Nadine ;

Thelakkat, Mukundan .

ORGANIC ELECTRONICS, 2007, 8 (01) :69-75

← 1 2 3 →