Processing temperature control of a diketopyrrolopyrrole-alt-thieno[2,3-b]thiophene polymer for high-mobility thin-film transistors and polymer solar cells with high open-circuit voltages

Hyo Sang Lee, Joong Suk Lee, A. Ra Jung, Wonsuk Cha, Hyunjung Kim, Hae Jung Son, Jeong Ho Cho, Bong Soo Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We synthesized a planar pDPPTTi-OD polymer based on diketopyrrolopyrrole (DPP) and thieno [2,3-b]thiophene (TTi) and investigated the electrical properties of the pDPPTTi-OD polymer. pDPPTTi-OD films displayed a low optical bandgap of 1.57 eV, and HOMO and LUMO levels of −5.40 and −3.74 eV, respectively. The 150°C-annealed pDPPTTi-OD films showed a high hole mobility of 0.16 cm2V−1s−1 in organic thin-film transistor (OTFT) devices. The photovoltaic properties of polymer solar cells (PSCs) incorporating the pDPPTTi-OD were also measured. A pDPPTTi-OD:PC71BM blend film was spin-coated at 25, 70 and 90 °C. High-temperature processing significantly improved the power conversion efficiency of PSCs by effectively reducing the PC71BM domain sizes, which improved the miscibility between pDPPTTi-OD and PC71BM. This work demonstrated that the TTi moiety is a useful donor building block for high- performance D–A type polymers in OTFTs and PSCs, and that processing temperatures should be controlled to fully realize the materials’ beneficial intrinsic properties.

Original languageEnglish
Pages (from-to)79-87
Number of pages9
JournalPolymer
Volume105
DOIs
Publication statusPublished - 2016 Nov 22

Fingerprint

Thiophenes
Thiophene
Open circuit voltage
Thin film transistors
Temperature control
Polymers
Processing
Hole mobility
Optical band gaps
Conversion efficiency
Electric properties
Solubility
Temperature
Polymer solar cells

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Lee, Hyo Sang ; Lee, Joong Suk ; Jung, A. Ra ; Cha, Wonsuk ; Kim, Hyunjung ; Son, Hae Jung ; Cho, Jeong Ho ; Kim, Bong Soo. / Processing temperature control of a diketopyrrolopyrrole-alt-thieno[2,3-b]thiophene polymer for high-mobility thin-film transistors and polymer solar cells with high open-circuit voltages. In: Polymer. 2016 ; Vol. 105. pp. 79-87.
@article{906ff61dd8874d158bedb832c91c533d,
title = "Processing temperature control of a diketopyrrolopyrrole-alt-thieno[2,3-b]thiophene polymer for high-mobility thin-film transistors and polymer solar cells with high open-circuit voltages",
abstract = "We synthesized a planar pDPPTTi-OD polymer based on diketopyrrolopyrrole (DPP) and thieno [2,3-b]thiophene (TTi) and investigated the electrical properties of the pDPPTTi-OD polymer. pDPPTTi-OD films displayed a low optical bandgap of 1.57 eV, and HOMO and LUMO levels of −5.40 and −3.74 eV, respectively. The 150°C-annealed pDPPTTi-OD films showed a high hole mobility of 0.16 cm2V−1s−1 in organic thin-film transistor (OTFT) devices. The photovoltaic properties of polymer solar cells (PSCs) incorporating the pDPPTTi-OD were also measured. A pDPPTTi-OD:PC71BM blend film was spin-coated at 25, 70 and 90 °C. High-temperature processing significantly improved the power conversion efficiency of PSCs by effectively reducing the PC71BM domain sizes, which improved the miscibility between pDPPTTi-OD and PC71BM. This work demonstrated that the TTi moiety is a useful donor building block for high- performance D–A type polymers in OTFTs and PSCs, and that processing temperatures should be controlled to fully realize the materials’ beneficial intrinsic properties.",
author = "Lee, {Hyo Sang} and Lee, {Joong Suk} and Jung, {A. Ra} and Wonsuk Cha and Hyunjung Kim and Son, {Hae Jung} and Cho, {Jeong Ho} and Kim, {Bong Soo}",
year = "2016",
month = "11",
day = "22",
doi = "10.1016/j.polymer.2016.10.024",
language = "English",
volume = "105",
pages = "79--87",
journal = "Polymer",
issn = "0032-3861",
publisher = "Elsevier BV",

}

Processing temperature control of a diketopyrrolopyrrole-alt-thieno[2,3-b]thiophene polymer for high-mobility thin-film transistors and polymer solar cells with high open-circuit voltages. / Lee, Hyo Sang; Lee, Joong Suk; Jung, A. Ra; Cha, Wonsuk; Kim, Hyunjung; Son, Hae Jung; Cho, Jeong Ho; Kim, Bong Soo.

In: Polymer, Vol. 105, 22.11.2016, p. 79-87.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Processing temperature control of a diketopyrrolopyrrole-alt-thieno[2,3-b]thiophene polymer for high-mobility thin-film transistors and polymer solar cells with high open-circuit voltages

AU - Lee, Hyo Sang

AU - Lee, Joong Suk

AU - Jung, A. Ra

AU - Cha, Wonsuk

AU - Kim, Hyunjung

AU - Son, Hae Jung

AU - Cho, Jeong Ho

AU - Kim, Bong Soo

PY - 2016/11/22

Y1 - 2016/11/22

N2 - We synthesized a planar pDPPTTi-OD polymer based on diketopyrrolopyrrole (DPP) and thieno [2,3-b]thiophene (TTi) and investigated the electrical properties of the pDPPTTi-OD polymer. pDPPTTi-OD films displayed a low optical bandgap of 1.57 eV, and HOMO and LUMO levels of −5.40 and −3.74 eV, respectively. The 150°C-annealed pDPPTTi-OD films showed a high hole mobility of 0.16 cm2V−1s−1 in organic thin-film transistor (OTFT) devices. The photovoltaic properties of polymer solar cells (PSCs) incorporating the pDPPTTi-OD were also measured. A pDPPTTi-OD:PC71BM blend film was spin-coated at 25, 70 and 90 °C. High-temperature processing significantly improved the power conversion efficiency of PSCs by effectively reducing the PC71BM domain sizes, which improved the miscibility between pDPPTTi-OD and PC71BM. This work demonstrated that the TTi moiety is a useful donor building block for high- performance D–A type polymers in OTFTs and PSCs, and that processing temperatures should be controlled to fully realize the materials’ beneficial intrinsic properties.

AB - We synthesized a planar pDPPTTi-OD polymer based on diketopyrrolopyrrole (DPP) and thieno [2,3-b]thiophene (TTi) and investigated the electrical properties of the pDPPTTi-OD polymer. pDPPTTi-OD films displayed a low optical bandgap of 1.57 eV, and HOMO and LUMO levels of −5.40 and −3.74 eV, respectively. The 150°C-annealed pDPPTTi-OD films showed a high hole mobility of 0.16 cm2V−1s−1 in organic thin-film transistor (OTFT) devices. The photovoltaic properties of polymer solar cells (PSCs) incorporating the pDPPTTi-OD were also measured. A pDPPTTi-OD:PC71BM blend film was spin-coated at 25, 70 and 90 °C. High-temperature processing significantly improved the power conversion efficiency of PSCs by effectively reducing the PC71BM domain sizes, which improved the miscibility between pDPPTTi-OD and PC71BM. This work demonstrated that the TTi moiety is a useful donor building block for high- performance D–A type polymers in OTFTs and PSCs, and that processing temperatures should be controlled to fully realize the materials’ beneficial intrinsic properties.

UR - http://www.scopus.com/inward/record.url?scp=84992089391&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84992089391&partnerID=8YFLogxK

U2 - 10.1016/j.polymer.2016.10.024

DO - 10.1016/j.polymer.2016.10.024

M3 - Article

AN - SCOPUS:84992089391

VL - 105

SP - 79

EP - 87

JO - Polymer

JF - Polymer

SN - 0032-3861

ER -