Regio-Regular Oligo and Poly(3-hexyl thiophene): Precise Structural Markers from the Vibrational Spectra of Oligomer Single Crystals.

被引:39
作者
Brambilla, Luigi [1 ]
Tommasini, Matteo [1 ]
Botiz, Ioan [2 ,3 ,4 ]
Rahimi, Khosrow [5 ]
Agumba, John O. [6 ]
Stingelin, Natalie [4 ]
Zerbi, Giuseppe [1 ]
机构
[1] Politecn Milan, Dipartimento Chim Mat & Ingn Chim G Natta, I-20133 Milan, Italy
[2] Univ Babes Bolyai, Nanobiophoton & Laser Microspect Ctr, Fac Phys, Cluj Napoca 400271, Romania
[3] Univ Babes Bolyai, Interdisciplinary Res Inst BioNanoSci, Cluj Napoca 400271, Romania
[4] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England
[5] Rhein Westfal TH Aachen, DWI Leibniz Inst Interact Mat, D-52074 Aachen, Germany
[6] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
基金
欧洲研究理事会;
关键词
CHARGE-TRANSPORT; ALPHA-RELAXATION; LATTICE-DYNAMICS; THERMAL-BEHAVIOR; SOLAR-CELLS; MOLECULES; CHAIN; POLYACETYLENE; POLYTHIOPHENE; POLYETHYLENE;
D O I
10.1021/ma501614c
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In this work, we report a comparative analysis of the infrared and Raman spectra of octa(3-hexylthiophene) (3HT)(8), trideca(3-hexylthiophene) (3HT)(13), and poly(3-hexylthiophene) P3HT recorded in various phases, namely, amorphous, semicrystalline, polycrystalline and single crystal. We have based our analysis on the spectra of the (3HT)(8) single crystal (whose structure has been determined by selected area electron diffraction) taken as reference and on the results of DFT calculations and molecular vibrational dynamics. New and precise spectroscopic markers of the molecular structures show the existence of three phases, namely: hairy (phase 1), ordered (phase 2), and disordered/amorphous (phase 3). Conceptually, the identified markers can be used for the molecular structure analysis of other similar systems.
引用
收藏
页码:6730 / 6739
页数:10
相关论文
共 77 条
[1]  
[Anonymous], ADV INFRARED RAMAN S
[2]  
[Anonymous], 2007, VIBRATIONAL SPECTROS
[3]  
[Anonymous], HDB THIOPHENE BASED
[4]  
[Anonymous], MOL VIBRATIONS
[5]  
[Anonymous], J POLYM SCI C
[6]  
[Anonymous], HDB CONDUCTING POLYM
[7]  
[Anonymous], 1958, Atti Acad. Naz. Lincei,Cl. Sci. Fis. Mat.Nat.
[8]  
[Anonymous], TECHNIQUE ORGANIC CH
[9]  
[Anonymous], ANGEW CHEM
[10]  
[Anonymous], SYNTH MET