UV polymerization of oligothiophenes and their application in nanostructured heterojunction solar cells

Carolien L. Huisman; Annemarie Huijser; Harrie Donker; Joop Schoonman; Albert Goossens

doi:10.1021/ma0357265

UV polymerization of oligothiophenes and their application in nanostructured heterojunction solar cells

Carolien L. Huisman, Annemarie Huijser, Harrie Donker, Joop Schoonman, Albert Goossens

Research output: Contribution to journal › Article › Academic › peer-review

39 Citations (Scopus)

Abstract

Thin films of 2,2‘-bithiophene (2T) and 2,2‘-5‘,2‘ ‘-terthiophene (3T) are polymerized by UV irradiation. The polymerization process can be observed by UV−vis and photoluminescence spectroscopy. If 2T is used as starting material, predominantly 4T (quarterthiophene) is formed, while 6T (sexithiophene) is formed if 3T is used as starting material. The same polymerization reaction occurs if solutions of 2T or 3T in chloroform or toluene are used or if a film of nanocrystalline titanium dioxide (nc-TiO2) is soaked with a 2T or a 3T solution. In the latter case the pores are (partly) filled with 4T or 6T, which acts as hole conductor. A photovoltaic response is observed when nc-TiO2/4T or nc-TiO2/6T interpenetrating structures are irradiated with visible light. The increase of oligomer length from 2T to 3T and the corresponding decrease in orientational freedom of the molecules strongly affects the ease of polymerization and the structural order of the compounds formed.

Original language	English
Pages (from-to)	5557-5564
Journal	Macromolecules
Volume	37
Issue number	15
DOIs	https://doi.org/10.1021/ma0357265
Publication status	Published - 27 Jul 2004
Externally published	Yes

Keywords

n/a OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/ma0357265

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@article{5f27bcdb79ec486d8e8df65b31585571,

title = "UV polymerization of oligothiophenes and their application in nanostructured heterojunction solar cells",

abstract = "Thin films of 2,2{\textquoteleft}-bithiophene (2T) and 2,2{\textquoteleft}-5{\textquoteleft},2{\textquoteleft} {\textquoteleft}-terthiophene (3T) are polymerized by UV irradiation. The polymerization process can be observed by UV−vis and photoluminescence spectroscopy. If 2T is used as starting material, predominantly 4T (quarterthiophene) is formed, while 6T (sexithiophene) is formed if 3T is used as starting material. The same polymerization reaction occurs if solutions of 2T or 3T in chloroform or toluene are used or if a film of nanocrystalline titanium dioxide (nc-TiO2) is soaked with a 2T or a 3T solution. In the latter case the pores are (partly) filled with 4T or 6T, which acts as hole conductor. A photovoltaic response is observed when nc-TiO2/4T or nc-TiO2/6T interpenetrating structures are irradiated with visible light. The increase of oligomer length from 2T to 3T and the corresponding decrease in orientational freedom of the molecules strongly affects the ease of polymerization and the structural order of the compounds formed. ",

keywords = "n/a OA procedure",

author = "Huisman, {Carolien L.} and Annemarie Huijser and Harrie Donker and Joop Schoonman and Albert Goossens",

year = "2004",

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doi = "10.1021/ma0357265",

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T1 - UV polymerization of oligothiophenes and their application in nanostructured heterojunction solar cells

AU - Huisman, Carolien L.

AU - Huijser, Annemarie

AU - Donker, Harrie

AU - Schoonman, Joop

AU - Goossens, Albert

PY - 2004/7/27

Y1 - 2004/7/27

N2 - Thin films of 2,2‘-bithiophene (2T) and 2,2‘-5‘,2‘ ‘-terthiophene (3T) are polymerized by UV irradiation. The polymerization process can be observed by UV−vis and photoluminescence spectroscopy. If 2T is used as starting material, predominantly 4T (quarterthiophene) is formed, while 6T (sexithiophene) is formed if 3T is used as starting material. The same polymerization reaction occurs if solutions of 2T or 3T in chloroform or toluene are used or if a film of nanocrystalline titanium dioxide (nc-TiO2) is soaked with a 2T or a 3T solution. In the latter case the pores are (partly) filled with 4T or 6T, which acts as hole conductor. A photovoltaic response is observed when nc-TiO2/4T or nc-TiO2/6T interpenetrating structures are irradiated with visible light. The increase of oligomer length from 2T to 3T and the corresponding decrease in orientational freedom of the molecules strongly affects the ease of polymerization and the structural order of the compounds formed.

AB - Thin films of 2,2‘-bithiophene (2T) and 2,2‘-5‘,2‘ ‘-terthiophene (3T) are polymerized by UV irradiation. The polymerization process can be observed by UV−vis and photoluminescence spectroscopy. If 2T is used as starting material, predominantly 4T (quarterthiophene) is formed, while 6T (sexithiophene) is formed if 3T is used as starting material. The same polymerization reaction occurs if solutions of 2T or 3T in chloroform or toluene are used or if a film of nanocrystalline titanium dioxide (nc-TiO2) is soaked with a 2T or a 3T solution. In the latter case the pores are (partly) filled with 4T or 6T, which acts as hole conductor. A photovoltaic response is observed when nc-TiO2/4T or nc-TiO2/6T interpenetrating structures are irradiated with visible light. The increase of oligomer length from 2T to 3T and the corresponding decrease in orientational freedom of the molecules strongly affects the ease of polymerization and the structural order of the compounds formed.

KW - n/a OA procedure

U2 - 10.1021/ma0357265

DO - 10.1021/ma0357265

M3 - Article

SN - 0024-9297

VL - 37

SP - 5557

EP - 5564

JO - Macromolecules

JF - Macromolecules

IS - 15

ER -

UV polymerization of oligothiophenes and their application in nanostructured heterojunction solar cells

Abstract

Keywords

UN SDGs

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