The effect of thiophene substituents of fulleropyrrolidine acceptors on the performance of inverted organic solar cells

K.M. Kaunisto (Corresponding Author), N.K. Subbaiyan, C. Bikram, V.I. Chukharev, H.M. Hakola, Tommi Vuorinen, V.M. Manninen, N.V. Tkachenko, H.J. Lemmetyinen, F. D'Souza (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

A series of tailored fulleropyrrolidine derivatives with thiophene substituents was synthesized and studied as electron acceptor materials in inverted organic bulk heterojunction (BHJ) solar cells. The study concentrated on seeking correlation between the molecular structure of the acceptor and its capability to form a photovoltaic BHJ film with the used electron donor material poly(3-hexylthiophene), P3HT. Atomic force and scanning electron microscopy imaging showed that the sensitivity of the BHJ morphology is tied to the molecular structure of the acceptor, which was further studied by photovoltaic characterization of the model solar cells. The photovoltaic performance clearly depended on the molecular structure of the fulleropyrrolidine substituents although there was only slight difference in the BHJ surface morphology. Fulleropyrrolidine derivatives with one or two thiophene units performed better as acceptor materials than those with three or four thiophene units. Additionally, hexyl side chains attached to the four thiophene unit increased the compatibility of a fulleropyrrolidine derivative with P3HT compared to a similar derivative without of the hexyl groups. The results provide new knowledge of the effect of the molecular structure of fulleropyrrolidine derivatives on the BHJ morphology in organic photovoltaics.
Original languageEnglish
Pages (from-to)193-200
Number of pages8
JournalSynthetic Metals
Volume195
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

Fingerprint

Thiophenes
Thiophene
thiophenes
Heterojunctions
heterojunctions
solar cells
Molecular structure
Derivatives
molecular structure
acceptor materials
Solar cells
donor materials
Electrons
compatibility
Surface morphology
electrons
Organic solar cells
Imaging techniques
Scanning electron microscopy
scanning electron microscopy

Keywords

  • organic photovoltaics
  • solar cells
  • bulk heterojunction
  • electron acceptors
  • fullerene
  • film morphology
  • polymers
  • solar energy

Cite this

Kaunisto, K.M. ; Subbaiyan, N.K. ; Bikram, C. ; Chukharev, V.I. ; Hakola, H.M. ; Vuorinen, Tommi ; Manninen, V.M. ; Tkachenko, N.V. ; Lemmetyinen, H.J. ; D'Souza, F. / The effect of thiophene substituents of fulleropyrrolidine acceptors on the performance of inverted organic solar cells. In: Synthetic Metals. 2014 ; Vol. 195. pp. 193-200.
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title = "The effect of thiophene substituents of fulleropyrrolidine acceptors on the performance of inverted organic solar cells",
abstract = "A series of tailored fulleropyrrolidine derivatives with thiophene substituents was synthesized and studied as electron acceptor materials in inverted organic bulk heterojunction (BHJ) solar cells. The study concentrated on seeking correlation between the molecular structure of the acceptor and its capability to form a photovoltaic BHJ film with the used electron donor material poly(3-hexylthiophene), P3HT. Atomic force and scanning electron microscopy imaging showed that the sensitivity of the BHJ morphology is tied to the molecular structure of the acceptor, which was further studied by photovoltaic characterization of the model solar cells. The photovoltaic performance clearly depended on the molecular structure of the fulleropyrrolidine substituents although there was only slight difference in the BHJ surface morphology. Fulleropyrrolidine derivatives with one or two thiophene units performed better as acceptor materials than those with three or four thiophene units. Additionally, hexyl side chains attached to the four thiophene unit increased the compatibility of a fulleropyrrolidine derivative with P3HT compared to a similar derivative without of the hexyl groups. The results provide new knowledge of the effect of the molecular structure of fulleropyrrolidine derivatives on the BHJ morphology in organic photovoltaics.",
keywords = "organic photovoltaics, solar cells, bulk heterojunction, electron acceptors, fullerene, film morphology, polymers, solar energy",
author = "K.M. Kaunisto and N.K. Subbaiyan and C. Bikram and V.I. Chukharev and H.M. Hakola and Tommi Vuorinen and V.M. Manninen and N.V. Tkachenko and H.J. Lemmetyinen and F. D'Souza",
year = "2014",
doi = "10.1016/j.synthmet.2014.06.007",
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Kaunisto, KM, Subbaiyan, NK, Bikram, C, Chukharev, VI, Hakola, HM, Vuorinen, T, Manninen, VM, Tkachenko, NV, Lemmetyinen, HJ & D'Souza, F 2014, 'The effect of thiophene substituents of fulleropyrrolidine acceptors on the performance of inverted organic solar cells', Synthetic Metals, vol. 195, pp. 193-200. https://doi.org/10.1016/j.synthmet.2014.06.007

The effect of thiophene substituents of fulleropyrrolidine acceptors on the performance of inverted organic solar cells. / Kaunisto, K.M. (Corresponding Author); Subbaiyan, N.K.; Bikram, C.; Chukharev, V.I.; Hakola, H.M.; Vuorinen, Tommi; Manninen, V.M.; Tkachenko, N.V.; Lemmetyinen, H.J.; D'Souza, F. (Corresponding Author).

In: Synthetic Metals, Vol. 195, 2014, p. 193-200.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - The effect of thiophene substituents of fulleropyrrolidine acceptors on the performance of inverted organic solar cells

AU - Kaunisto, K.M.

AU - Subbaiyan, N.K.

AU - Bikram, C.

AU - Chukharev, V.I.

AU - Hakola, H.M.

AU - Vuorinen, Tommi

AU - Manninen, V.M.

AU - Tkachenko, N.V.

AU - Lemmetyinen, H.J.

AU - D'Souza, F.

PY - 2014

Y1 - 2014

N2 - A series of tailored fulleropyrrolidine derivatives with thiophene substituents was synthesized and studied as electron acceptor materials in inverted organic bulk heterojunction (BHJ) solar cells. The study concentrated on seeking correlation between the molecular structure of the acceptor and its capability to form a photovoltaic BHJ film with the used electron donor material poly(3-hexylthiophene), P3HT. Atomic force and scanning electron microscopy imaging showed that the sensitivity of the BHJ morphology is tied to the molecular structure of the acceptor, which was further studied by photovoltaic characterization of the model solar cells. The photovoltaic performance clearly depended on the molecular structure of the fulleropyrrolidine substituents although there was only slight difference in the BHJ surface morphology. Fulleropyrrolidine derivatives with one or two thiophene units performed better as acceptor materials than those with three or four thiophene units. Additionally, hexyl side chains attached to the four thiophene unit increased the compatibility of a fulleropyrrolidine derivative with P3HT compared to a similar derivative without of the hexyl groups. The results provide new knowledge of the effect of the molecular structure of fulleropyrrolidine derivatives on the BHJ morphology in organic photovoltaics.

AB - A series of tailored fulleropyrrolidine derivatives with thiophene substituents was synthesized and studied as electron acceptor materials in inverted organic bulk heterojunction (BHJ) solar cells. The study concentrated on seeking correlation between the molecular structure of the acceptor and its capability to form a photovoltaic BHJ film with the used electron donor material poly(3-hexylthiophene), P3HT. Atomic force and scanning electron microscopy imaging showed that the sensitivity of the BHJ morphology is tied to the molecular structure of the acceptor, which was further studied by photovoltaic characterization of the model solar cells. The photovoltaic performance clearly depended on the molecular structure of the fulleropyrrolidine substituents although there was only slight difference in the BHJ surface morphology. Fulleropyrrolidine derivatives with one or two thiophene units performed better as acceptor materials than those with three or four thiophene units. Additionally, hexyl side chains attached to the four thiophene unit increased the compatibility of a fulleropyrrolidine derivative with P3HT compared to a similar derivative without of the hexyl groups. The results provide new knowledge of the effect of the molecular structure of fulleropyrrolidine derivatives on the BHJ morphology in organic photovoltaics.

KW - organic photovoltaics

KW - solar cells

KW - bulk heterojunction

KW - electron acceptors

KW - fullerene

KW - film morphology

KW - polymers

KW - solar energy

U2 - 10.1016/j.synthmet.2014.06.007

DO - 10.1016/j.synthmet.2014.06.007

M3 - Article

VL - 195

SP - 193

EP - 200

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

ER -