Abstract
We report on the use of microcrystallization in capillaries to fabricate patterned crystalline microstructures of the low-bandgap ambipolar quinoidal quaterthiophene derivative (QQT(CN)4) from a chloroform solution. Aligned needle-shaped QQT(CN)4 crystals were formed in thin film microstructures using either open- or closed- capillaries made of polydimethylsiloxane (PDMS). Their charge transport properties were evaluated in a bottom-gate top-contact transistor configuration. Hole and electron mobilities were found to be as high as 0.17 and 0.083 cm2 V-1 s-1, respectively, approaching the values previously obtained in individual QQT(CN)4 single crystal microneedles. It was possible to control the size of the needle crystals and the microline arrays by adjusting the structure of the PDMS mold and the concentration of QQT(CN)4 solution. These results demonstrate that the microcrystallization in capillaries technique can be used to simultaneously pattern organic needle single crystals and control the microcrystallization processes. Such a simple and versatile method should be promising for the future development of high-performance organic electronic devices.
| Original language | English |
|---|---|
| Pages (from-to) | 17574-17582 |
| Number of pages | 9 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 8 |
| Issue number | 27 |
| DOIs | |
| Publication status | Published - Jul 13 2016 |
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Keywords
- ambipolar organic semiconductor
- microcrystallization in capillaries
- organic field effect transistor
- single crystal
- wet process
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Microcrystallization of a Solution-Processable Organic Semiconductor in Capillaries for High-Performance Ambipolar Field-Effect Transistors. / Watanabe, Satoshi; Fujita, Takuma; Ribierre, Jean Charles; Takaishi, Kazuto; Muto, Tsuyoshi; Adachi, Chihaya; Uchiyama, Masanobu; Aoyama, Tetsuya; Matsumoto, Mutsuyoshi.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 27, 13.07.2016, p. 17574-17582.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Microcrystallization of a Solution-Processable Organic Semiconductor in Capillaries for High-Performance Ambipolar Field-Effect Transistors
AU - Watanabe, Satoshi
AU - Fujita, Takuma
AU - Ribierre, Jean Charles
AU - Takaishi, Kazuto
AU - Muto, Tsuyoshi
AU - Adachi, Chihaya
AU - Uchiyama, Masanobu
AU - Aoyama, Tetsuya
AU - Matsumoto, Mutsuyoshi
PY - 2016/7/13
Y1 - 2016/7/13
N2 - We report on the use of microcrystallization in capillaries to fabricate patterned crystalline microstructures of the low-bandgap ambipolar quinoidal quaterthiophene derivative (QQT(CN)4) from a chloroform solution. Aligned needle-shaped QQT(CN)4 crystals were formed in thin film microstructures using either open- or closed- capillaries made of polydimethylsiloxane (PDMS). Their charge transport properties were evaluated in a bottom-gate top-contact transistor configuration. Hole and electron mobilities were found to be as high as 0.17 and 0.083 cm2 V-1 s-1, respectively, approaching the values previously obtained in individual QQT(CN)4 single crystal microneedles. It was possible to control the size of the needle crystals and the microline arrays by adjusting the structure of the PDMS mold and the concentration of QQT(CN)4 solution. These results demonstrate that the microcrystallization in capillaries technique can be used to simultaneously pattern organic needle single crystals and control the microcrystallization processes. Such a simple and versatile method should be promising for the future development of high-performance organic electronic devices.
AB - We report on the use of microcrystallization in capillaries to fabricate patterned crystalline microstructures of the low-bandgap ambipolar quinoidal quaterthiophene derivative (QQT(CN)4) from a chloroform solution. Aligned needle-shaped QQT(CN)4 crystals were formed in thin film microstructures using either open- or closed- capillaries made of polydimethylsiloxane (PDMS). Their charge transport properties were evaluated in a bottom-gate top-contact transistor configuration. Hole and electron mobilities were found to be as high as 0.17 and 0.083 cm2 V-1 s-1, respectively, approaching the values previously obtained in individual QQT(CN)4 single crystal microneedles. It was possible to control the size of the needle crystals and the microline arrays by adjusting the structure of the PDMS mold and the concentration of QQT(CN)4 solution. These results demonstrate that the microcrystallization in capillaries technique can be used to simultaneously pattern organic needle single crystals and control the microcrystallization processes. Such a simple and versatile method should be promising for the future development of high-performance organic electronic devices.
KW - ambipolar organic semiconductor
KW - microcrystallization in capillaries
KW - organic field effect transistor
KW - single crystal
KW - wet process
UR - http://www.scopus.com/inward/record.url?scp=84978915414&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84978915414&partnerID=8YFLogxK
U2 - 10.1021/acsami.5b12713
DO - 10.1021/acsami.5b12713
M3 - Article
AN - SCOPUS:84978915414
VL - 8
SP - 17574
EP - 17582
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 27
ER -