Electrosynthesis and Characterisation of Polymer Nanowires from Thiophene and its Oligomers

被引:4
作者
Angelica del Valle, Maria [1 ]
Ramos, Andrea C. [1 ]
Diaz, Fernando R. [1 ]
Gacitua, Manuel A. [2 ]
机构
[1] Pontificia Univ Catolica Chile, Fac Quim, Dept Quim Inorgan, LEP, Santiago 7820436, Chile
[2] Univ Adolfo Ibanez, Ctr Appl Ecol & Sustainabil CAPES, Fac Ingn & Ciencias, Lab Bioingn, Santiago 7941169, Chile
关键词
electropolymerisation; polythiophene nanowire; thiophene oligomers; template; ORGANIC SOLAR-CELLS; GROWTH MECHANISMS; MONOMER CONCENTRATION; NUCLEATION; POLYTHIOPHENE; NANOSTRUCTURES; FILMS; ELECTROPOLYMERIZATION; ELECTROCHEMISTRY; ELECTROLYTE;
D O I
10.5935/0103-5053.20150223
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Validating methodology formerly reported, polythiophene electrosynthesised as nanowires from the monomer and some of its oligomers is now described. The work is conducted on a platinum electrode previously modified with a template that tunes the polymer growth inside the confined space of the pores. In addition, it was confirmed that the use of larger chain-length oligomers as starting unit helps to obtain more homogeneous wires, although its adhesion to the supporting substrate works against. Characterisation allows to verify the morphology and to confirm higher levels of doping/undoping of the nanostructures as compared to the corresponding bulky deposits, which points to improved macroscopic properties. It is demonstrated that this strategy allows obtaining nanowires of very small diameter, ranging from 2.8 to 4.0 nm; thus demonstrating that the use of this approach enables the direct obtainment of nanowires upon the electrode surface, with the obvious advantage that this implies.
引用
收藏
页码:2313 / 2320
页数:8
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