| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2246 |
| 발표분야 |
재료 |
| 제목 |
Voltage Tunable Devices by External Pressure Based on Organic Inverters with Soft-Contact Lamination |
| 초록 |
Tunable diode connected inverter is fabricated by connecting two OTFTs which adopt elastic bridge-structured PDMS stamps with deposited source-drain electrode. When pressure is applied on the PDMS stamp of drive transistor, output S-D current (Isd) and threshold voltage (Vth) will be varied as effective channel length of OTFT is changed. Larger pressure applied on PDMS stamp leads to higher Isd and lower Vth. Therefore, after applying gradually increased pressure on PDMS stamp of driver transistor, voltage transfer curve (VTC) of this diode connected inverter can be shifted in positive direction because of Isd and Vth variation. Moreover, due to elasticity of PDMS material, after releasing pressure applied on PDMS stamp, it will recover to previous status. Therefore, it is possible to use the tunable organic inverter as a pressure sensing device. Relationship between applied pressure and output voltage is studied. Sensitivity of this pressure sensing device is also improved by means of different PDMS stamps with different thickness. |
| 저자 |
손기군, Wang Yan, Liang Yuchen, 서순민
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| 소속 |
가천대 |
| 키워드 |
organic inverters; soft-contact lamination; organic thin film transistors; tunable organic inverter
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| E-Mail |
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| 원문파일 |
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