Abstract
We report on an improved melt-processing method to prepare organic semiconducting layers with large crystal size and enhanced charge carrier mobilities. The organic compound used in this work is a solution-processable oligo(p-phenylene vinylene) derivative substituted at both ends with pyrene moieties. Accurate control of the temperature during the recrystallization of this compound from the melt enables the formation of large single crystal monodomains in thin films. The melt-processed organic layer shows higher mobilities in transistor configuration than in spin-coated films, which can be attributed to the presence of large-size crystalline monodomains as evidenced by X-ray diffraction measurements. We also investigated the photophysical properties of this material in spin-coated and melted films and found an increase of the photoluminescence quantum yield with the size of the crystals in the organic layer. The advantage of this method over the spin coating also allowed observation of amplified spontaneous emission that was only achieved in the melted film due to its improved luminescence efficiency. Overall, this study demonstrates a simple and versatile method, which does not require the use of any solvent and vacuum, to fabricate organic layers with large crystal size, suitable for the realization of organic electronic and light-emitting devices.
| Original language | English |
|---|---|
| Pages (from-to) | 3190-3198 |
| Number of pages | 9 |
| Journal | Journal of Materials Chemistry C |
| Volume | 7 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Chemistry
Cite this
A solvent-free and vacuum-free melt-processing method to fabricate organic semiconducting layers with large crystal size for organic electronic applications. / Ribierre, Jean Charles; Li, Zhao; Liu, Xiao; Lacaze, Emmanuelle; Heinrich, Benoît; Méry, Stephane; Sleczkowski, Piotr; Xiao, Yiming; Lafolet, Frédéric; Hashizume, Daisuke; Aoyama, Tetsuya; Uchiyama, Masanobu; Wu, Jeong Weon; Zaborova, Elena; Fages, Frédéric; D'Aléo, Anthony; Mathevet, Fabrice; Adachi, Chihaya.
In: Journal of Materials Chemistry C, Vol. 7, No. 11, 01.01.2019, p. 3190-3198.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A solvent-free and vacuum-free melt-processing method to fabricate organic semiconducting layers with large crystal size for organic electronic applications
AU - Ribierre, Jean Charles
AU - Li, Zhao
AU - Liu, Xiao
AU - Lacaze, Emmanuelle
AU - Heinrich, Benoît
AU - Méry, Stephane
AU - Sleczkowski, Piotr
AU - Xiao, Yiming
AU - Lafolet, Frédéric
AU - Hashizume, Daisuke
AU - Aoyama, Tetsuya
AU - Uchiyama, Masanobu
AU - Wu, Jeong Weon
AU - Zaborova, Elena
AU - Fages, Frédéric
AU - D'Aléo, Anthony
AU - Mathevet, Fabrice
AU - Adachi, Chihaya
PY - 2019/1/1
Y1 - 2019/1/1
N2 - We report on an improved melt-processing method to prepare organic semiconducting layers with large crystal size and enhanced charge carrier mobilities. The organic compound used in this work is a solution-processable oligo(p-phenylene vinylene) derivative substituted at both ends with pyrene moieties. Accurate control of the temperature during the recrystallization of this compound from the melt enables the formation of large single crystal monodomains in thin films. The melt-processed organic layer shows higher mobilities in transistor configuration than in spin-coated films, which can be attributed to the presence of large-size crystalline monodomains as evidenced by X-ray diffraction measurements. We also investigated the photophysical properties of this material in spin-coated and melted films and found an increase of the photoluminescence quantum yield with the size of the crystals in the organic layer. The advantage of this method over the spin coating also allowed observation of amplified spontaneous emission that was only achieved in the melted film due to its improved luminescence efficiency. Overall, this study demonstrates a simple and versatile method, which does not require the use of any solvent and vacuum, to fabricate organic layers with large crystal size, suitable for the realization of organic electronic and light-emitting devices.
AB - We report on an improved melt-processing method to prepare organic semiconducting layers with large crystal size and enhanced charge carrier mobilities. The organic compound used in this work is a solution-processable oligo(p-phenylene vinylene) derivative substituted at both ends with pyrene moieties. Accurate control of the temperature during the recrystallization of this compound from the melt enables the formation of large single crystal monodomains in thin films. The melt-processed organic layer shows higher mobilities in transistor configuration than in spin-coated films, which can be attributed to the presence of large-size crystalline monodomains as evidenced by X-ray diffraction measurements. We also investigated the photophysical properties of this material in spin-coated and melted films and found an increase of the photoluminescence quantum yield with the size of the crystals in the organic layer. The advantage of this method over the spin coating also allowed observation of amplified spontaneous emission that was only achieved in the melted film due to its improved luminescence efficiency. Overall, this study demonstrates a simple and versatile method, which does not require the use of any solvent and vacuum, to fabricate organic layers with large crystal size, suitable for the realization of organic electronic and light-emitting devices.
UR - http://www.scopus.com/inward/record.url?scp=85062887670&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062887670&partnerID=8YFLogxK
U2 - 10.1039/c8tc04834g
DO - 10.1039/c8tc04834g
M3 - Article
AN - SCOPUS:85062887670
VL - 7
SP - 3190
EP - 3198
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
SN - 2050-7526
IS - 11
ER -