https://scholars.lib.cycu.edu.tw/handle/123456789/13 Tue, 18 Aug 2026 02:36:20 GMT 2026-08-18T02:36:20Z https://scholars.lib.cycu.edu.tw/handle/123456789/8038 Title: Electrical Characteristics of InSe-based Field-effect Transistors Authors: Tsung-Pin Lu; Ming-Xian Loi; Ji-Jhih Yeh; Ambika Subramanian; Pin-Hsi Chiu; Cheng-Han Wu; Hao-Wei Liu; Rajesh Kumar Ulaganathan; Chang-Yu Lin Abstract: To understand and optimize the eletrical properties of two-dimensional (2D) Van der Waals material is crucial since the thickness of the material can substantially affect the field of 2D material based eletronic devices and other applications. The main objective of this study is to investigate the most important parameters for examing the performance of FETs, carrier mobility (µ) and threshold voltage (V th ) of indium selenide (InSe) based field-effect transistor. We believe that analyzing the thickness of 2D materials is essential for the performance enhancement of FETs in a variety of electronic and optoelectronic applications. We hope this result can be assisted in performance enhancement of complementary metal-oxide-semiconductor (CMOS) inverter and logic circuit applications. Sat, 01 Jan 2022 00:00:00 GMT https://scholars.lib.cycu.edu.tw/handle/123456789/8038 2022-01-01T00:00:00Z https://scholars.lib.cycu.edu.tw/handle/123456789/8037 Title: Metal Injection Molding Using Gas-Assisted Technology for Optimizing Density Uniformity and Part Weight Reduction Authors: Shia Chung Chen; Ming Hsien Ou Yang; Ching Te Feng; Tzu Jeng Hsu; Yu Hung Ting; Che Wei Chang Abstract: To control the product density uniformity and weight reduction for metal injection molding (MIM), this study investigated the influence of using gas-assisted technology to assess if uniform part density can be achieved. The findings show that gas-assisted molding has great potential for improving density uniformity, particularly for the part density at the position far away from the gate. The green parts and final parts also significantly improve density uniformity and shrinkage. Interestingly, the gas-assisted technology applied to MIM shows similar molding characteristics and advantages over gas-assisted injection molding of polymers. This also enables the design of MIM parts with a non-uniform thickness with a hollowed core in the thick portion. Sat, 01 Jan 2022 00:00:00 GMT https://scholars.lib.cycu.edu.tw/handle/123456789/8037 2022-01-01T00:00:00Z https://scholars.lib.cycu.edu.tw/handle/123456789/8033 Title: 靜壓軸承使用薄膜節流器之剛度最佳化及設計參數影響探討 / INVESTIGATION IN STIFFNESS OPTIMIZATION AND INFLUENCE OF DESIGN PARAMETERS FOR HYDROSTATIC BEARING USING MEMBRANE RESTRICTOR Authors: 胡聖彥; 傅建彰 / Chien-Chang Fu; 蔡元順 / Yuan-Shun Cai; 康淵 Abstract: 本文探討單向薄膜節流器如何設計匹配靜壓軸承使油膜在已知承載下具有最大的剛度，匹配設計的關鍵在於節流器具有特定值的無因次薄膜變形係數以及節流參數。首先根據彈性薄板理論，建立薄膜變形量及最大應力的設計條件，然後經由實驗方法鑑別薄膜節流器之節流參數及薄膜順從係數，驗證薄膜節流器補償油腔壓力理論設計的工作特性。實驗使用平面靜壓軸承工作台，經由測量節流器進口壓力、出口壓力及流量，使用最小誤差平方偏導數方程式聯立求解，得到薄膜節流器的節流參數及薄膜順從參數，進一步求得無因次薄膜變形係數，校準無因次薄膜變形係數為特定值，改變供壓及初始薄膜與節流台間隙，達到以實驗驗證無因次薄膜變形係數接近特定值時，由實驗量測負荷造成的位移很小，因而得證位移呈現幾乎不變的情況，即油膜剛度最佳化的效果。 Sun, 01 Jan 2023 00:00:00 GMT https://scholars.lib.cycu.edu.tw/handle/123456789/8033 2023-01-01T00:00:00Z https://scholars.lib.cycu.edu.tw/handle/123456789/7965 Title: Rate performance enhancement in lithium-ion batteries using TiNb2-xAlxO7 anodes with self-generated protective layers Authors: Wang, Jia-Hui; Paul, Tanmoy; Chandan, Prem; Prakoso, Suhendro Purbo; Chi, Po-Wei; Yeh, Kuo-Wei; Chang, Chung-Chieh; Wu, Maw-Kuen; Chiu, Yu-Cheng Abstract: Lithium titanate oxides, i.e. Li4Ti5O12 (LTO), and titanium niobium oxides, i.e. TiNb2O7 (TNO), are promising anodes for lithium-ion batteries (LIBs). In comparison to LTO anodes, TNO anodes have zero-strain characteristics but with a higher specific capacity (about 387 mAh g-1). However, the reactions leading to gas generation during high-rate cycling impedes the practical use of TNO anodes. The incorporation of aluminum into TNO by partial replacement of niobium atoms is proposed to address these issues. This Al-incorporation enables self- generation of a protective shell through the solute drag effect by annealing process. The generated protective layer is conducive to the formation of a solid electrolyte interphase (SEI) layer with enhanced lithium-ion conductivity during reaction with electrolyte. In addition, this SEI layer can effectively reduce side reactions and polarization during high-rate cycling, thereby suppressing the possibility of gas generation and enhancing the overall electrochemical performances. As a result, TiNb1.95Al0.05O(TNAO-0.05) anode exhibits a high specific capacity of about 223 mAh g-1 for over 100 cycles at 0.1C. Even at a higher rate of about 5C, it maintains a specific capacity as high as 176 mAh g-1, and holding up a capacity retention of 96.4 % after 300 cycles at 1C. This report demonstrates the potential of TNAO-0.05 anode for industrial battery applications. Wed, 01 Jan 2025 00:00:00 GMT https://scholars.lib.cycu.edu.tw/handle/123456789/7965 2025-01-01T00:00:00Z