Browsing by Issue Date, starting with "2017-01-09"

Now showing 1 - 20 of 14689

小檔案：社區新聞學
(國立交通大學客家文化學院, 2017-01-09)
全翎瑄
社區新聞學（community journalism）為透過社區觀察、深度訪談進行資料搜集與撰寫，並結合公共新聞學，以舉辦社區活動及設定報導議題，達成社區重建的目標。此概念就如同《風起》的媒體運作模式：藉由田野調查跟採訪，於不同社區內進行駐點，與社區聯絡，以社區報紙工作者的身份進行文史紀錄與保存。
Superior characteristics of microscale light emitting diodes through tightly lateral oxide-confined scheme
(2017-01-09)
Huang, Shen-Che
;
Li, Heng
;
Zhang, Zhe-Han
;
Chen, Hsiang
;
Wang, Shing-Chung
We report on the design of the geometry and chip size-controlled structures of microscale light-emitting diodes (micro-LEDs) with a shallow-etched oxide-refilled current aperture and their performance. The proposed structure, which combines an indium-tin-oxide layer and an oxide-confined aperture, exhibited not only uniform current distribution but also remarkably tight current confinement. An extremely high injection level of more than 90 kA/cm(2) was achieved in the micro-LED with a 5-mu m aperture. Current spreading and the droop mechanism in the investigated devices were characterized through electroluminescence measurements, optical microscopy, and beam-view imaging. Furthermore, we utilized the beta-model and S-model to elucidate current crowding and the efficiency droop phenomenon in the investigated micro-LEDs. The luminescence results evidenced the highly favorable performance of the fabricated micro-LEDs, which is a result of their more uniform current spreading and lower junction temperature relative to conventional LEDs. Moreover, the maximum endured current density could be further increased by reducing the aperture size of the micro-LEDs. The proposed design, which is expected to be beneficial for the development of high-performance array-based micro-LEDs, is practicable through current state-of-the-art processing techniques. Published by AIP Publishing.
Materials growth and band offset determination of Al2O3/In0.15Ga0.85Sb/GaSb/GaAs heterostructure grown by metalorganic chemical vapor deposition
(2017-01-09)
Sa Hoang Huynh
;
Minh Thien Huu Ha
;
Huy Binh Do
;
Tuan Anh Nguyen
;
Quang Ho Luc
The ternary InxGa1-xSb epilayers grown on GaAs substrates by metalorganic chemical vapor deposition using a GaSb buffer layer have been demonstrated. High-resolution transmission electron microscopy micrographs illustrate an entirely relaxed GaSb buffer grown by the interfacial misfit dislocation growth mode. A high quality In0.15Ga0.85Sb epilayer was obtained on the GaSb surface with the very low threading dislocation densities (similar to 8.0 x 10(6) cm(-2)) and the surface roughness was 0.87 nm. The indium content of the InxGa1-xSb epilayer depends significantly on the growth temperature and approaches to a saturated value of 15% when the growth temperature was above 580 degrees C. Based on the X-ray photoelectron spectroscopy analyses, the valence band offset and the conduction band offset of Al2O3 with the In0.15Ga0.85Sb/GaSb/GaAs heterostructure are 3.26 eV and 2.91 eV, respectively. In addition, from the O1s energy-loss spectrum analysis, the band gap of Al2O3 is found to be similar to 6.78+/-0.05 eV. Published by AIP Publishing.
照片說故事說出心裡話
(國立交通大學客家文化學院, 2017-01-09)
全翎瑄
因為合作專題的關係，《風起》曾在新竹千甲聚落實施攝影課程。課程重點不是要增進居民的拍攝技巧，比賽誰拍得最厲害，而是以照片說故事的形式，讓大家了解拍這張照片背後的原因和動機。
Abnormal hump in capacitance-voltage measurements induced by ultraviolet light in a-IGZO thin-film transistors
(2017-01-09)
Tsao, Yu-Ching
;
Chang, Ting-Chang
;
Chen, Hua-Mao
;
Chen, Bo-Wei
;
Chiang, Hsiao-Cheng
This work demonstrates the generation of abnormal capacitance for amorphous indium-gallium-zinc oxide (a-InGaZnO4) thin-film transistors after being subjected to negative bias stress under ultraviolet light illumination stress (NBIS). At various operation frequencies, there are two-step tendencies in their capacitance-voltage curves. When gate bias is smaller than threshold voltage, the measured capacitance is dominated by interface defects. Conversely, the measured capacitance is dominated by oxygen vacancies when gate bias is larger than threshold voltage. The impact of these interface defects and oxygen vacancies on capacitance-voltage curves is verified by TCAD simulation software. Published by AIP Publishing.
Competing weak localization and weak antilocalization in amorphous indium-gallium-zinc-oxide thin-film transistors
(2017-01-09)
Wang, Wei-Hsiang
;
Lyu, Syue-Ru
;
Heredia, Elica
;
Liu, Shu-Hao
;
Jiang, Pei-Hsun
We have investigated the gate-voltage dependence and the temperature dependence of the magneto-conductivity of amorphous indium-gallium-zinc-oxide thin-film transistors. A weak-localization feature is observed at small magnetic fields on top of an overall negative magnetoconductivity at higher fields. An intriguing controllable competition between weak localization and weak antilocalization is observed by tuning the gate voltage or by varying the temperature. Our findings reflect controllable quantum interference competition in the electron systems in amorphous indium-gallium-zinc-oxide thin-film transistors. Published by AIP Publishing.
孩子們的另一個家小草書屋
(國立交通大學客家文化學院, 2017-01-10)
林之綠
小草書屋起緣於甘樂文創2007年的「絲瓜小隊」計畫，創辦人林峻承與新北市三峽的有木國小合作，每週一次，利用一個下午的時間，帶領弱勢家庭的小學生開闢山田耕種絲瓜，讓這些學童能體會親自耕種的樂趣，也減少了放學後小孩因無家長看管而四處遊蕩的頻率。雖然小有成效，但林峻承認為僅僅每週的陪伴是不足夠的，因此2010年起還開放了暑假活動，用更長的時間與學童相處，經過一連串的累積與努力，到了2015年7月，「小草書屋」正式成立，與三峽地區的國中小合作，提供弱勢家庭學童們一個放學後可以吃飯、寫作業與學習的地方。
小檔案：甘樂文創
(國立交通大學客家文化學院, 2017-01-10)
林之綠
於2010年9月成立，創辦人為林峻承，是一個多角化經營的社會企業，目前主要營運項目有：餐飲空間、文創商品、藝文展演租賃、設計服務、三峽文化旅遊規劃、藍染體驗等等，之前還有發售獨立刊物《甘樂誌》，不過目前由於經費與人力考量，暫時處於停刊狀態。而以上這些營運所得，則以多種方式分配回饋於三峽當地，包括：小草書屋、藝文支持、社區共好、老農關懷與育成扶植等等，並且連結當地各領域資源，致力於三峽地區的發展與關懷。
從三峽看甘樂文創：深耕在地的社會企業
(國立交通大學客家文化學院, 2017-01-10)
林之綠
「大家一人拿一副袋子和夾子，就可以出發去淨溪囉！記得三點半回來集合喔。」位於新北市三峽河河畔的甘樂文創，訂定每個月的第二個星期日為淨溪日，和三峽當地清潔隊合作，將每個月撿拾起的垃圾堆放在約定好的場所，將清理三峽河畔變成每個月的例行活動。沿著河堤望去，從成群結隊的國小小朋友，到路過的觀光客，大家都自然而然成為淨溪的一員，這背後的動員，甘樂文創居功不小。甘樂文創在三峽地區長期經營多年，在地方扎根深厚，採多角化經營，致力於發展特色文創、陪伴弱勢學童及改善當地環境。到底是什麼樣的組織，能有這樣的凝聚力量？本篇報導，將從工作夥伴、合作人與在地居民等角度來了解這個社會企業。
新竹縣柿染文化協會新埔客家不只柿餅！
(國立交通大學客家文化學院, 2017-01-11)
黃承歆
提到新埔，大眾印象最深刻的便是柿餅產業的發展。來到新埔，一定會去品嘗柿餅那甜脆爽口的滋味。然而，除了柿餅之外，很少有人會直接聯想到新埔的柿染工藝。
在地美學生活-食藝峨眉
(國立交通大學客家文化學院, 2017-01-11)
張佳琳
為了能促進峨眉鄉的居民能夠共同面對社區的生活議題，創造共同的生活福祉，月眉觀光休閒產業文化協會(文化協會)致力於社區營造，而食藝峨眉正是其中一個例子。
吹起在地文化的一陣風：風起挖掘地方故事創造無限可能
(國立交通大學客家文化學院, 2017-01-11)
全翎瑄
自古以來，人類便是群居性動物。從一個人與另一個人的互動，到人們與社區的互動，在這過程中，人們不斷創造、累積當地獨有的人文歷史與故事，努力保存並將這些珍貴的文化價值傳承下去。然而，若有一天，當這些歷史脈絡都消失了，人們該如何重新定位自己，找回自己與當地的連結？《風起》扮演著那條連結線，以挖掘在地故事編輯手的角色，深入瞭解社區，以文字紀錄故事，再次拾回人與社區之間的溫度。
飄香的天主堂：峨眉鄉月眉觀光休閒產業文化協會
(國立交通大學客家文化學院, 2017-01-11)
張佳琳
位於新竹縣南端，與北埔比鄰的峨眉，是個沒有便利商店、乏人關注的偏遠客家小鄉鎮，雖然偶爾會有遊客經過，但大家卻鮮少聽過這個地方，而坐落於峨眉路邊一座不太起眼的天主教堂，也是人們經常會直接忽略的地方。然而近年來，由於一位有心人的努力以及偶然的機會，使得荒廢數年的教堂再次充滿人們的歡笑聲。
Ultrafast carrier dynamics in Ge by ultra-broadband mid-infrared probe spectroscopy
(2017-01-11)
Yeh, Tien-Tien
;
Shirai, Hideto
;
Tu, Chien-Ming
;
Fuji, Takao
;
Kobayashi, Takayoshi
In this study, we carried out 800-nm pump and ultra-broadband mid-infrared (MIR) probe spectroscopy with high time-resolution (70 fs) in bulk Ge. By fitting the time-resolved difference reflection spectra [Delta R(omega)/R(omega)] with the Drude model in the 200-5000 cm(-1) region, the time-dependent plasma frequency and scattering rate have been obtained. Through the calculation, we can further get the time-dependent photoexcited carrier concentration and carrier mobility. The Auger recombination essentially dominates the fast relaxation of photoexcited carriers within 100 ps followed by slow relaxation due to diffusion. Additionally, a novel oscillation feature is clearly found in time-resolved difference reflection spectra around 2000 cm(-1) especially for high pump fluence, which is the Lorentz oscillation lasting for about 20 ps due to the Coulomb force exerted just after the excitation.
小檔案：「野山田」起源
(國立交通大學客家文化學院, 2017-01-11)
張佳琳
「野山田」這個名稱初次給人的印象總是會被認為很有日本的味道或被誤會是否跟日本文化有些微關係，但實際上一點關係都沒有。
小檔案：柿染製作過程
(國立交通大學客家文化學院, 2017-01-11)
黃承歆
新竹縣柿染文化協會提供的柿染DIY體驗活動，主要以刷染、煮染為主。
濟州柿染夢生伊工作室
(國立交通大學客家文化學院, 2017-01-11)
黃承歆
新埔的柿染坊在台灣柿染產業獨樹一幟，事實上，柿染服飾為韓國濟州島的傳統服飾。因柿染本身具有使物體質地變為硬挺的特質，最早起源於漁夫用柿染將漁網變硬，而後延伸至耐穿且耐海水侵蝕柿染服。除了是他們在從事產業活動時常穿的活動服，也是為了適應當地特有的薄地和濕地氣候，提高勞動效率所穿著的土服飾。
從台北公館到苗栗公館：翻轉傳統農村的Me棗居
(國立交通大學客家文化學院, 2017-01-11)
林宜昕
苗栗公館石墻村的入口位在台六線二十四公里處的小路上，穿過熱鬧的麵館，映入眼簾的是一片片開闊的紅棗田，Me棗居的加工小屋就坐落在紅棗田邊。除了紅棗，農地上也可見洛神花與一隻隻野放的雞，簡單的元素組成了Me棗居友善的環境循環與農作的產銷循環。
為都市人補足營養的保鮮櫃計畫
(國立交通大學客家文化學院, 2017-01-11)
林宜昕
Me棗居同時涵蓋農產品的生產、加工、銷售六級產業，其中主要由創辦人胞弟陳福得先生負責加工部份。由於蔬果的保鮮期有限，也時常有盛產的情形，因此改變蔬果型態進而延長壽命的加工便成為Me棗居的一大助力。
小檔案：Me棗居組織介紹
(國立交通大學客家文化學院, 2017-01-11)
林宜昕
Me棗居組織介紹