Flexible Organic Thin Film Transistors Incorporating a Biodegradable CO2-Based Polymer as the Substrate and Dielectric Material

被引:29
作者
Rullyani, Cut [1 ]
Sung, Chao-Feng [2 ,3 ]
Lin, Hong-Cheu [1 ]
Chu, Chih-Wei [4 ,5 ]
机构
[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Dept Photon, Hsinchu 300, Taiwan
[3] Natl Chiao Tung Univ, Display Inst, Hsinchu 300, Taiwan
[4] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan
[5] Chang Gung Univ, Coll Engn, Taoyuan 333, Taiwan
来源
SCIENTIFIC REPORTS | 2018年 / 8卷
关键词
FIELD-EFFECT TRANSISTORS; POLY(PROPYLENE CARBONATE); MICROBIAL ENZYMES; DEGRADATION; CO2; TRANSPARENT; DIOXIDE; ELECTRONICS; COPOLYMERIZATION; COMPOSITE;
D O I
10.1038/s41598-018-26585-0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Employing CO2-based polymer in electronic applications should boost the consumption of CO2 feedstocks and provide the potential for non-permanent CO2 storage. In this study, polypropylene carbonate (PPC) is utilized as a dielectric and substrate material for organic thin film transistors (OTFTs) and organic inverter. The PPC dielectric film exhibits a surface energy of 47 mN m(-1), a dielectric constant of 3, a leakage current density of less than 10(-6) A cm(-2), and excellent compatibility with pentacene and PTCDI-C8 organic semiconductors. Bottom-gate top-contact OTFTs are fabricated using PPC as a dielectric; they exhibits good electrical performance at an operating voltage of 60 V, with electron and hole mobilities of 0.14 and 0.026 cm(2)V(-1)s(-1), and on-to-off ratios of 105 and 103, respectively. The fabricated p-and n-type transistors were connected to form a complementary inverter that operated at supply voltages of 20 V with high and low noise margins of 85 and 69%, respectively. The suitability of PPC as a substrate is demonstrated through the preparation of PPC sheets by casting method. The fabricated PPC sheets has a transparency of 92% and acceptable mechanical properties, yet they biodegraded rapidly through enzymatic degradation when using the lipase from Rhizhopus oryzae.
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页数:10
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