Low-Voltage Driven Organic Phototransistor Utilizing Solution-sheared Thio-Alkyl Bithiophene (SBT)-based Small Molecule Semiconductor with a Titanium-Silicon Oxide/Organic Hybrid Dielectric
碩士 === 國立中央大學 === 化學工程與材料工程學系 === 105 === Low voltage driven organic phototransistor are promising for photosensor and memory device application. In this work, single crystalline and ordered aligned arrays of solution-sheared DDTT-BST, which contains thio-alkyl substituted bithiophene (BST) with end...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2017
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| Online Access: | http://ndltd.ncl.edu.tw/handle/12327464740134413342 |
| Summary: | 碩士 === 國立中央大學 === 化學工程與材料工程學系 === 105 === Low voltage driven organic phototransistor are promising for photosensor and memory device application. In this work, single crystalline and ordered aligned arrays of solution-sheared DDTT-BST, which contains thio-alkyl substituted bithiophene (BST) with end-capped dithienothiophene (DTT) group, was used as organic semiconductors layers. High dielectric constant of 120 nm-thick hybrid titanium-silicon oxide (TiSiOx)/organic (hTSO) thin film was used as gate dielectric in low-voltage phototransistor. For the optimized condition upon irradiation of LED blue light with a wavelength of 410 nm, these p-type organic phototransistors exhibited a photoresponsivity of 200 A W-1 and maximum photosensitivity reaches 2000 within an operating voltage of -3 V. This study aims to aid the development of organic semiconductors with high quality crystalline structures combined with low power consumption for future optoelectronics applications.
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