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

doi:10.1016/j.polymer.2016.10.024

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

Department of Chemical and Biomolecular Engineering

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

5 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 language	English
Pages (from-to)	79-87
Number of pages	9
Journal	polymer
Volume	105
DOIs	https://doi.org/10.1016/j.polymer.2016.10.024
Publication status	Published - 2016 Nov 22

Bibliographical note

Funding Information:
This work was supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning ( NRF-2015M1A2A2056218 ), by Basic Science Research Program through the NRF funded by the Ministry of Education ( NRF-2015R1D1A1A01058493 ), and by the financial support from the R&D Convergence Program of NST ( National Research Council of Science & Technology ) of Republic of Korea ( CAP-15-04-KITECH ).

Publisher Copyright:
© 2016

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

UN SDGs

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

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10.1016/j.polymer.2016.10.024

Cite this

@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{\textquoteright} 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}",

note = "Funding Information: This work was supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning ( NRF-2015M1A2A2056218 ), by Basic Science Research Program through the NRF funded by the Ministry of Education ( NRF-2015R1D1A1A01058493 ), and by the financial support from the R&D Convergence Program of NST ( National Research Council of Science & Technology ) of Republic of Korea ( CAP-15-04-KITECH ). Publisher Copyright: {\textcopyright} 2016",

year = "2016",

month = nov,

day = "22",

doi = "10.1016/j.polymer.2016.10.024",

language = "English",

volume = "105",

pages = "79--87",

journal = "Polymer",

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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

N1 - Funding Information: This work was supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning ( NRF-2015M1A2A2056218 ), by Basic Science Research Program through the NRF funded by the Ministry of Education ( NRF-2015R1D1A1A01058493 ), and by the financial support from the R&D Convergence Program of NST ( National Research Council of Science & Technology ) of Republic of Korea ( CAP-15-04-KITECH ). Publisher Copyright: © 2016

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.

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U2 - 10.1016/j.polymer.2016.10.024

DO - 10.1016/j.polymer.2016.10.024

M3 - Article

AN - SCOPUS:84992089391

SN - 0032-3861

VL - 105

SP - 79

EP - 87

JO - Polymer

JF - Polymer

ER -

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

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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