2012 Fiscal Year Final Research Report
Development of thiophene-fused phthalocyanines with high crystallinity and application to organic thin-film devices
| Project/Area Number |
22750171
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Functional materials/Devices
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| Research Institution | Hiroshima University |
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Principal Investigator |
MIYAZAKI Eigo 広島大学, 大学院・工学研究院, 助教 (00432683)
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| Project Period (FY) |
2010 – 2012
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| Keywords | フタロシアニン / 有機半導体 / 有機薄膜デバイス / 電子デバイス |
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| Research Abstract |
In order to improve device performance of organic field-effect transistors (OFETs) and organic photovoltaics (OPVs) based on phthalocyanines (Pcs), I have investigated properties of new porphyrazines with aromatic5-membered fused-ring heterocycle and its π-extended compound, and applied to organic thin-film devices. In this project, I have designed thiophene-fused porphyrazine (Tc), benzothiophene-fused porphyrazine (BTc), and thiadiazole-fused porphrazine (TzPz) as new Pcs. Alkylated Tc- and BTc-based devices showed p-channel characteristics with mobility of ～0.3 cm2 V^<-1>s^<-1> for Tc and ～10^<-2>cm^V^<-1>s^<-1>for BTc. However, alkylated TzPz-based devices showed no field-effect response. Alkylated Tc/C60bilayer OPV showed the efficiency of 1.2%. Whereas other Pcs-based OPVs showed no photovoltaics response. These results indicate that simple modification of molecule by π-extension leads to no improvement of device performance.
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[Journal Article] S. Shinamura, I. Osaka, E. Miyazaki, A. Nakao, M. Yamagishi, Jun Takeya, K. Takimiya, J2011
Author(s)
S. Shinamura, I. Osaka, E. Miyazaki, A. Nakao, M. Yamagishi, Jun Takeya, K. Takimiya
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Journal Title
J. Am. Chem. Soc
Volume: Vo l. 133
Pages: 5024-5035
DOI
Peer Reviewed
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