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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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🏛️國立陽明交通大學機構典藏

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Now showing 1 - 10 of 36
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    Recent Progress in White Light-Emitting Electrochemical Cells
    (1970-01-01)
    Su, Hai-Ching
    ;
    Chen, Yi-Ru
    ;
    Wong, Ken-Tsung
    ;
    照明與能源光電研究所
    ;
    Institute of Lighting and Energy Photonics
    Solid-state white light-emitting electrochemical cells (LECs) exhibit the following advantages: simple device structures, low operation voltage, and compatibility with inert metal electrodes. LECs have been studied extensively since the first demonstration of white LECs in 1997, due to their potential application in solid-state lighting. This review provides an overview of recent developments in white LECs, specifically three major aspects thereof, namely, host-guest white LECs, nondoped white LECs, and device engineering of white LECs. Host-guest strategy is widely used in white LECs. Host materials are classified into ionic transition metal complexes, conjugated polymers, and small molecules. Nondoped white LECs are based on intra- or intermolecular interactions of emissive and multichromophore materials. New device engineering techniques, such as modifying carrier balance, color downconversion, optical filtering based on microcavity effect and localized surface plasmon resonance, light extraction enhancement, adjusting correlated color temperature of the output electroluminescence spectrum, tandem and/or hybrid devices combining LECs with organic light-emitting diodes, and quantum-dot light-emitting diodes improve the device performance of white LECs by ways other than material-oriented approaches. Considering the results of the reviewed studies, white LECs have a bright outlook.
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    Metal Nanoparticle-Decorated Two-Dimensional Molybdenum Sulfide for Plasmonic-Enhanced Polymer Photovoltaic Devices
    (2015-08-01)
    Chuang, Ming-Kai
    ;
    Yang, Shun-Shing
    ;
    Chen, Fang-Chung
    ;
    光電工程學系
    ;
    Department of Photonics
    Atomically thin two-dimensional (2D) transition metal dichalcogenides have also attracted immense interest because they exhibit appealing electronic, optical and mechanical properties. In this work, we prepared gold nanoparticle-decorated molybdenum sulfide (AuNP@MoS2) through a simple spontaneous redox reaction. Transmission electron microscopy, UV-Vis spectroscopy, and Raman spectroscopy were used to characterize the properties of the AuNP@MoS2 nanomaterials. Then we employed such nanocomposites as the cathode buffer layers of organic photovoltaic devices (OPVs) to trigger surface plasmonic resonance, leading to noticeable enhancements in overall device efficiencies. We attribute the primary origin of the improvement in device performance to local field enhancement induced by the effects of localized surface plasmonic resonance. Our results suggest that the metal nanoparticle-decorated two-dimensional materials appear to have great potential for use in high-performance OPVs.
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    Exploring the Correspondence Between Chemical States and Adhesion Property for Cr, Co Metal/AZ 4620, BCB Polymer Interface
    (2018-02-01)
    Hsieh, Yen-Hui
    ;
    Huang, Yen-Jun
    ;
    Shih, Jian-Yu
    ;
    Leu, Jihperng
    ;
    Chen, Kuan-Neng
    A method is built for describing the relationship between adhesion strength and chemical states of Co/polymer and Cr/polymer interfaces. Based on the chemical bonding model, the adhesion strength is confirmed to be dominated by the metal organic complex at the interfaces. For Cr/polymers interfaces, the formation of metal-organic complex is restricted by the oxidation of metal atoms during deposition, which leads to almost no variation in adhesion from low [benzocyclobutene(BCB)] to high (AZ 4620) oxygenated polymers. On the other hand, a strong adhesion is observed at the Co/BCB interface that arises from the metal-organic bonds associated with hydroxyl groups in the polymer. The method is expected to provide clear analysis to other metal-polymer interfaces for seeking proper combination in heterogeneous integration.
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    Photoexfoliation of two-dimensional materials through continuous UV irradiation
    (2017-03-24)
    Lin, Wai-Chen
    ;
    Chuang, Ming-Kai
    ;
    Keshtov, Muchamed L.
    ;
    Sharma, Ganesh D.
    ;
    Chen, Fang-Chung
    This paper describes the preparation of fluorinated graphene nanosheets (FGNs) through photoexfoliation of fluorinated graphite (FG) in the liquid phase. We discovered that UV irradiation of FG dispersions in N-methyl-2-pyrolidone facilitated exfoliation to give FGNs. Transmission electron microscopy and atomic force microscopy revealed that the average thickness of the FGNs was approximately 3 nm; they were considerably thinner than the nanosheets prepared using a conventional sonication approach. Furthermore, when the FGNs were deposited uniformly onto substrates (through spin coating), they formed effective cathode interlayers for polymer solar cells (PSCs), the efficiency of which was 60% greater than that of PSCs containing FGNs prepared through ultrasonication.
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    Plasmonic Effects of Amphiphilic Gold Nanoparticles in Polymer Optoelectronic Devices
    (2016)
    Chuang, Ming-Kai
    ;
    Lin, Chun-Hao
    ;
    Chen, Fang-Chung
    ;
    光電工程學系
    ;
    Department of Photonics
    Amphiphilic gold nanoparticles have been synthesized and employed for improving the performance of polymer optoelectronics devices. Such nanocomposites could be readily incoporated into the buffer and/or photoactive layers, resulting in obvious enhancements in device efficiencies.
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    金屬奈米粒子修飾氧化石墨烯於高分子光電元件之表面電漿效應
    (2015)
    陳方中
    ;
    Chen Fang-Chung
    ;
    國立交通大學光電工程學系（所）
    ｢金屬奈米粒子修飾氧化石墨烯於高分子光電元件之表面電漿效應｣計劃之主要目標在於 運用金屬奈米粒子修飾氧化石墨烯之奈米複合材料於改善高分子光電元件的特性。我們第一年 首先將合成高品質之金奈米粒子修飾氧化石墨烯衍生物，並以各種不同光譜技術進行材料與薄 膜特性之鑑定，之後以這些奈米材料作為高分子太陽能電池的陽極緩衝層，我們將以螢光光譜 等方式研究此新穎材料於元件之表面電漿效應，也將架設暫態光電壓量測技術研究表面電漿對 元件中電荷再結合率的影響。第二年則將使用低能間隙高分子製作元件，用以吸收長波長的太 陽能光子而進一步增加元件的效率，也將改變這些奈米材料的功函數用以製作反式結構，並研 究元件之穩定度與其毀損機制，目標為運用金屬奈米粒子修飾氧化石墨烯製成高效率且高穩定 性之高分子太陽能電池。第三年則將運用前二年的成果改善高分子光增益偵測器之特性，我們 預計本計劃結束前能研發出同時具有高效率及高穩定性之高分子偵測器。
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    Efficient and stable polymer solar cells prepared using plasmonic graphene oxides as anode buffers
    (2015-08-01)
    Chen, Chung-Lei
    ;
    Chuang, Ming-Kai
    ;
    Chen, Chyong-Hua
    ;
    Chu, Chih-Wei
    ;
    Keshtov, Muchamed L.
    Gold nanoparticle-decorated graphene oxides (AuNP-GOs) have been incorporated into inverted organic photovoltaic devices (OPVs) as anode interlayers. The OPVs fabricated with AuNP-GOs exhibited significant improvement in both the short-circuit current and fill factor compared to a reference device fabricated with neat GOs. We attribute the improvement in the efficiency of the device to the plasmonic effects of the AuNP-GO nanocomposites, which induced local enhancement of the electromagnetic field. More importantly, the inverted OPVs also exhibited better reliability after the use of AuNP-GO nanocomposites.
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    高效能高分子太陽能電池及光二極體
    (2008)
    陳方中
    ;
    Chen Fang-Chung
    ;
    國立交通大學光電工程學系(所)
    很多文獻報導指出退火製程對於高分子太陽能電池有重大的影響。「高效能高分子 太陽能電池及光二極體」研究計劃將系統性地研究包含熱退火及溶劑退火等方式對元 件特性的影響機制。以不同退火方式製備的有機薄膜將以紫外-可見光及紅外線光譜檢 視，薄膜型態也將以原子力顯微鏡、穿透式電子顯微鏡、掃瞄式電子顯微鏡、X 光繞 射及雷射掃瞄共軛焦顯微鏡等方式研究，有了基礎的薄膜型態與元件知識後，溶劑退 火也將更進一步以增加蒸氣壓及降低退火溫度來改善。此外，本計劃也將發展快速及 有效率的微波退火，最後，並檢視不同退火方式對有機光二極體的影響。預計成功執 行本計劃後高分子太陽能電池及光二極體的效能將被大幅改善。
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    可撓性上入射型有機太陽能電池
    (2008)
    陳方中
    ;
    Chen Fang-Chung
    ;
    國立交通大學光電工程學系(所)
    「可撓性上入射型有機太陽能電池」將發展具有上層透明電極之高分子太陽能電 池，將可製作於不透光之可撓性基板上，例如不銹鋼基板上等。首先將使用金屬氧化 物降低接面電阻以提升元件能量轉換效率，之後也將製作傳統與倒置型的元件件結 構，最後，將發展高反射率雙層金屬電極用以提升光件內光的反射性而增加太陽光之 吸收，預計成功執行本計劃後，將可提升上入射型有機太陽能電池之效率。
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    高近紅外光效率有機光伏元件的研發與其在生物醫療的應用探索
    (2014)
    陳方中
    ;
    Chen Fang-Chung
    ;
    國立交通大學光電工程學系（所）
    由於生物組織在近紅外光波段具有很高的穿透度，對於近紅外光有高轉換效率的有機光伏 元件有很大潛力可以無線的方式供應奈/微米生物醫療元件所需的能源。「高近紅外光效率有 機光伏元件的研發與其在生物醫療的應用探索」之研究計劃的目標有二，第一在於提升有機光 伏元件在近紅外光光譜區域的效率，這方面的研究成果將有機會提升有機太陽能電池整體的能 量轉換效率。第二則在於發展生物可相容的有機光伏電池，探索此種新式光伏元件在生物醫療 方面應用的可能性。計畫第一年將探討數種增進元件於近紅外光區域效率的方式，包含上轉換 奈米磷光物質的應用與機制探討、近紅光光學干涉現象與光學間隙層的應用、探討陰極金屬反 射率的影響、金屬奈米粒子的表面電漿共振效應等。第二年則將使用生物相容性的材料製作元 件，並置入模擬的生物環境中測試。更重要的是也將探討生物相容有機材料特性(如能階、薄 膜型態等)與元件特性之間的關係。第三年將結合前二年的研究成果，將增進元件效率的數種 方式應用於生物相容元件之上，最後也將驗證此元件在生醫應用方面的潛力，製作以有機光伏 元件為基礎的軟性電刺激神經增生支架的雛型。