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Your search keyword '"Lien, Wei‐chieh"' showing total 9 results
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9 results on '"Lien, Wei‐chieh"'

2. Solution-Processable Quinoidal Dithioalkylterthiophene-Based Small Molecules Pseudo-Pentathienoacenes via an Intramolecular S···S Lock for High-Performance n-Type Organic Field-Effect Transistors

Author

Vegiraju, Sureshraju, primary, Amelenan Torimtubun, Alfonsina Abat, additional, Lin, Po-Shen, additional, Tsai, Hsin-Chia, additional, Lien, Wei-Chieh, additional, Chen, Cheng-Shiun, additional, He, Guan-Yu, additional, Lin, Chih-Yu, additional, Zheng, Ding, additional, Huang, Yi-Fan, additional, Wu, Yi-Ching, additional, Yau, Shueh-Lin, additional, Lee, Gene-Hsiang, additional, Tung, Shih-Huang, additional, Wang, Chien-Lung, additional, Liu, Cheng-Liang, additional, Chen, Ming-Chou, additional, and Facchetti, Antonio, additional

Published
2020
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3. Quinoidal thioalkyl-substituted bithiophene small molecule semiconductors for n-type organic field effect transistors

Author

Joseph, Vellaichamy, primary, Yu, Chih-Hsin, additional, Lin, Chia-Chi, additional, Lien, Wei-Chieh, additional, Tsai, Hsin-Chia, additional, Chen, Cheng-Shiun, additional, Torimtubun, Alfonsina Abat Amelenan, additional, Velusamy, Arulmozhi, additional, Huang, Ping-Yu, additional, Lee, Gene-Hsiang, additional, Yau, Shueh-Lin, additional, Tung, Shih-Hung, additional, Minari, Takeo, additional, Liu, Cheng-Liang, additional, and Chen, Ming-Chou, additional

Published
2020
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4. Solution-Processed High-Performance Tetrathienothiophene-Based Small Molecular Blends for Ambipolar Charge Transport

Author

Vegiraju, Sureshraju, primary, Lin, Chih-Yu, additional, Priyanka, Pragya, additional, Huang, Deng-Yi, additional, Luo, Xian-Lun, additional, Tsai, Hsiang-Chi, additional, Hong, Shao-Huan, additional, Yeh, Chia-Jung, additional, Lien, Wei-Chieh, additional, Wang, Chien-Lung, additional, Tung, Shih-Huang, additional, Liu, Cheng-Liang, additional, Chen, Ming-Chou, additional, and Facchetti, Antonio, additional

Published
2018
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5. Effects of the GaN and AlN nucleation layers on the crack-free AlGaN templates.

Author

Wang, Tong-Wen, Chen, Nie-Chuan, Lien, Wei-Chieh, Wu, Meng-Chyi, and Shih, Chuan-Feng

Subjects
NUCLEATION, GALLIUM nitride, ALUMINUM nitride, DIFFRACTION patterns, TRANSMISSION electron microscopy, LIGHT emitting diodes, METAL organic chemical vapor deposition
Abstract

This paper reports the effects of GaN and AlN nucleation layers (NLs) on the characteristics of the subsequently grown AlGaN templates, which were grown by a two-step growth method on sapphire substrates using metal-organic chemical vapor deposition. The in situ monitored reflectance spectra reveal that the thickness variation in AlGaN templates grown on the GaN NL is much smaller than that on the AlN NL. X-ray diffraction patterns show that the AlGaN template with a GaN NL exhibits a better crystalline quality as compared to that with an AlN NL. Observed from the transmission electron microscopy, it is also shown that the dislocation density of the AlGaN template with a GaN NL can be substantially reduced. In addition, the fabricated light-emitting diodes from the AlGaN template with a GaN NL exhibit a lower forward voltage, a lower series resistance, a lower leakage current, and a narrower linewidth of electroluminescence peak than those with the AlN NL. [ABSTRACT FROM AUTHOR]

Published
2008
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6. Solution-Processable Quinoidal Dithioalkylterthiophene-Based Small Molecules Pseudo-Pentathienoacenes viaan Intramolecular S···S Lock for High-Performance n-Type Organic Field-Effect Transistors

Author

Vegiraju, Sureshraju, Amelenan Torimtubun, Alfonsina Abat, Lin, Po-Shen, Tsai, Hsin-Chia, Lien, Wei-Chieh, Chen, Cheng-Shiun, He, Guan-Yu, Lin, Chih-Yu, Zheng, Ding, Huang, Yi-Fan, Wu, Yi-Ching, Yau, Shueh-Lin, Lee, Gene-Hsiang, Tung, Shih-Huang, Wang, Chien-Lung, Liu, Cheng-Liang, Chen, Ming-Chou, and Facchetti, Antonio

Abstract

A new organic small-molecule family comprising tetracyanoquinodimethane-substituted quinoidal dithioalky(SR)terthiophenes (DSTQs) (DSTQ-6(1); SR = SC6H13, DSTQ-10(2); SR = SC10H21, DSTQ-14(3); SR = SC10H21) was synthesized and contrasted with a nonthioalkylated analogue (DRTQ-14(4); R = C14H29). The physical, electrochemical, and electrical properties of these new compounds are thoroughly investigated. Optimized geometries obtained from density functional theory calculations and single-crystal X-ray diffraction reveal the planarity of the SR-containing DSTQcore. DSTQs pack in a slipped π–π stacked two-dimensional arrangement, with a short intermolecular stacking distance of 3.55 Å and short intermolecular S···N contacts of 3.56 Å. Thin-film morphological analysis by grazing incident X-ray diffraction reveals that all DSTQmolecules are packed in an edge-on fashion on the substrate. The favorable molecular packing, the high core planarity, and very low lowest unoccupied molecular orbital (LUMO) energy level (−4.2 eV) suggest that DSTQs could be electron-transporting semiconductors. Organic field-effect transistors based on solution-sheared DSTQ-14exhibit the highest electron mobility of 0.77 cm2V–1s–1with good ambient stability, which is the highest value reported to date for such a solution process terthiophene-based small molecular semiconductor. These results demonstrate that the device performance of solution-sheared DSTQs can be improved by side chain engineering.

Published
2020
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7. High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect transistors (OFETs)

Author

Vegiraju, Sureshraju, primary, Huang, Deng-Yi, additional, Priyanka, Pragya, additional, Li, Yo-Shan, additional, Luo, Xian-Lun, additional, Hong, Shao-Huan, additional, Ni, Jen-Shyang, additional, Tung, Shih-Huang, additional, Wang, Chien-Lung, additional, Lien, Wei-Chieh, additional, Yau, Shueh Lin, additional, Liu, Cheng-Liang, additional, and Chen, Ming-Chou, additional

Published
2017
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9. Effect of Buffer Layers on Electrical, Optical and Structural Properties of AlGaN/GaN Heterostructures Grown on Si

Author

Chang, Chin-An, primary, Lien, Shao-Tang, additional, Liu, Chen-Han, additional, Shih, Chaun-Feng, additional, Chen, Nie-Chuan, additional, Chang, Pen-Hsiu, additional, Peng, Hien-Chiu, additional, Tang, Tze-Yu, additional, Lien, Wei-Chieh, additional, Wu, Yu-Hsiang, additional, Wu, Kun-Ta, additional, Chen, Ji-Wei, additional, Liang, Chi-Te, additional, Chen, Yang-Fang, additional, Lu, Tong-Uan, additional, and Lin, Tai-Yuan, additional

Published
2006
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