Browsing by Issue Date, starting with "2010-06-03"
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Item type:Item, 太陽エネルギ電池のGexSi1-x緩衝層をシリコンウェハ上に形成する方法。(2010-06-03) ;張翼 ;唐士軒林岳欽【課題】GexSi1-x緩衝層をシリコンウェハ上に形成した太陽エネルギ電池を提供する。【解決手段】Si基板上での高品質Ge成長を促進するため、変成GexSi1-x緩衝層103とSi基板101との間の接合部における歪緩和を強化するため、Si+をSi基板上へ注入する。更に数個のGexSi1‐x緩衝層(Si/Ge0.8Si0.2/Ge0.9Si0.1/Ge)103~105がUHVCVDによりSi基板上部に成長する。低転移密度の純Ge層がGexSi1-x緩衝層上に成長する。最後に、高効率III-V太陽電池201~206がGexSi1-x緩衝層上に成長する。【選択図】図2Item type:Item, Dip Pen Nanolithography of Conductive Silver Traces(2010-06-03) ;Hung, Sheng-Chun ;Nafday, Omkar A. ;Haaheim, Jason R. ;Ren, FanChi, G. C.We report the first demonstration of sub mu m, sub-50-mu Omega.cm conductive traces directly written by Dip Pen Nanolithography (DPN). We achieved sub mu m Ag lines with 28.8 mu Omega.cm average resistivity after direct-write printing from a silver nanoparticle-based ink suspension and annealing at 150 degrees C for 10 min. This compares to Ag bulk resistivity of 1.63 mu Omega.cm, where the difference is within the range of previously reported variations in conductivity of Ag-based inks due to annealing conditions and larger width scales. We leveraged DPN's ability to directly place materials at specific locations in order to fabricate and characterize these conductive silver (Ag) traces on electrode patterns and multiple substrates (SiO(2), Kapton, mica). The low viscosity of the AgNP ink solution allowed write speeds up to 1600 mu m/s, almost 4 orders of magnitude higher than typical thiol-on-gold DPN writing speeds. This direct-write methodology paves the way for site-specific deposition of metallic materials for use in applications such as circuit repair, sensor element functionalization, failure analysis, gas sensing, and printable electronics.Item type:Item, Organic semiconductor infrared distance sensing apparatus and organic infrared emitting apparatus thereof(2010-06-03) ;Meng, Hsin-Fei ;Horng, Sheng-Fu ;Tseng, Hsin-Rong ;Yang, Chia-MingChen, En-ChenAn organic semiconductor infrared distance sensing apparatus and an organic infrared emitting apparatus thereof are disclosed. The organic semiconductor infrared distance sensing apparatus comprises an organic infrared emitting apparatus and an organic infrared receiving apparatus. The organic infrared emitting apparatus has a positive electrode layer and a negative electrode layer to form an electric field, and organic light emitting molecules are sandwiched between the two layers and correspond to the positive electrode layer and the negative electrode layer. Under a positive bias, a plurality of electrons and holes are respectively injected from electrodes and recombine with each other to emit photons. An infrared organic conversion layer absorbs and transfers the energy to infrared emitting molecules to emit infrared light. The organic infrared receiving apparatus receives the infrared light reflected by an obstacle to generate photocurrent which varies with distance, thereby sensing the distance between the obstacle and the apparatus.Item type:Item, Coverage Analysis for the Core/Shell Electrode of Dye-Sensitized Solar Cells(2010-06-03) ;Tien, Ta-Chang ;Pan, Fu-Ming ;Wang, Lih-Ping ;Tsai, Feng-YuLin, ChingIn this study, we established a core/shell (C/S) model that evaluates the surface coverage of an overlayer deposited on nanoparticles in terms of X-ray photoelectron spectroscopy signals of the nanoparticles. We used the model to estimate the coverage of Al(2)O(3) shell layers, which were deposited on the nanoporous TiO(2) electrodes of dye-sensitized solar cells (DSSCs) by atomic layer deposition (ALD), as a function of the number of ALD reaction cycles. The surface coverage increased with the average thickness of the Al(2)O(3) shell layers, indicating that the ALD Al(2)O(3) deposition on the nanoporous electrode was via the island growth mode. The power conversion efficiency of the DSSCs was highest after the first ALD reaction cycle for the Al(2)O(3) shell layers, which had a coverage of 0.25, according to the C/S model. The study shows that, to further improve the PCE, optimization of the ALD Al(2)O(3) deposition condition is required so that the surface coverage of the shell layer can be increased at the first ALD reaction cycle.Item type:Item, Direct probe of heterojunction effects upon photoconductive properties of TiO(2) nanotubes fabricated by atomic layer deposition(2010-06-04) ;Chang, Yung-Huang ;Liu, Chien-Min ;Tseng, Yuan-Chieh ;Chen, ChihChen, Chia-ChuanThis study investigated Schottky- and ohmic-contact effects upon the photoresponses of ITO/TiO(2)/Si and Ti/TiO(2)/Si nanotube-based photodiodes. The TiO(2) tube arrays were fabricated by atomic layer deposition (ALD) and shaped by an anodic aluminum oxide (AAO) template on a p-type Si substrate. The contact area between the electrode (Ti or ITO) and the TiO(2)'s tip was varied by tuning the tube's inner wall thickness with ALD, providing a direct and systematic probe of the heterojunction effects upon the photodiodes' responses. Results show that the Ti/TiO(2)/Si diode exhibits a highly thickness-dependent photoresponse. This is because the photocurrent is driven by the p-n junction at TiO(2)/Si alone and it faces no retarding at the ohmic contact of Ti/TiO(2). For the ITO/TiO(2)/Si diode, the Schottky contact at ITO/TiO(2) regulates photocurrent overriding TiO(2)/Si as a result of higher efficiency in photogeneration, leading to the opposite response compared with the Ti/TiO(2)/Si diode. Respective energy band diagrams are provided to support the statements above, and a consistent picture is obtained for both time response and quantum efficiency measurements.Item type:Item, Direct probe of heterojunction effects upon photoconductive properties of TiO2 nanotubes fabricated by atomic layer deposition(2010-06-04) ;Chang, Yung-Huang ;Liu, Chien-Min ;Tseng, Yuan-Chieh ;Chen, ChihChen, Chia-ChuanThis study investigated Schottky- and ohmic-contact effects upon the photoresponses of ITO/TiO2/Si and Ti/TiO2/Si nanotube-based photodiodes. The TiO2 tube arrays were fabricated by atomic layer deposition (ALD) and shaped by an anodic aluminum oxide (AAO) template on a p-type Si substrate. The contact area between the electrode (Ti or ITO) and the TiO2's tip was varied by tuning the tube's inner wall thickness with ALD, providing a direct and systematic probe of the heterojunction effects upon the photodiodes' responses. Results show that the Ti/TiO2/Si diode exhibits a highly thickness-dependent photoresponse. This is because the photocurrent is driven by the p-n junction at TiO2/Si alone and it faces no retarding at the ohmic contact of Ti/TiO2. For the ITO/TiO2/Si diode, the Schottky contact at ITO/TiO2 regulates photocurrent overriding TiO2/Si as a result of higher efficiency in photogeneration, leading to the opposite response compared with the Ti/TiO2/Si diode. Respective energy band diagrams are provided to support the statements above, and a consistent picture is obtained for both time response and quantum efficiency measurements.Item type:Item, 新興職業 等你來發現(2010-06-06) ;傅如尉 ;Department of Communication and Technology傳播與科技學系俗語常道:「三百六十行,行行出狀元。」隨著時代的進步,職業種類除了基本的士農工商之外,也漸漸發展出許多特別的職業。在這裡,以人生的四個階段:孩童,青壯年,老人,死亡,介紹與其相關的職業和資訊。Item type:Item, Item type:Item, 我是妥瑞人 我是正常人(2010-06-06) ;宋宜玲 ;Department of Communication and Technology傳播與科技學系妥瑞症為先天性疾病,孩子並無法自由選擇,自呱呱落地的那一刻起他們就必須與妥瑞症為伍,然而影響他們的不是妥瑞症本身,而是社會對待他們的方式,只要人們都能敞開心胸去包容與眾不同的他們,妥瑞人也能快樂又自在的成長。Item type:Item, 爵士傳奇 Chet Baker(2010-06-06) ;羅兆恆 ;Department of Communication and Technology傳播與科技學系在五零年代,Chet年輕的時候,他長得像James Dean(台譯:詹姆士.狄恩)那樣英俊,僅僅二十三歲,他憑著天才般的小號演奏技巧,以及憂鬱而迷濛的嗓音,成為了當時爵士樂圈子裡最迷人的偶像。Item type:Item, 人與城市的夜市人生(2010-06-06) ;徐瑩峰 ;Department of Communication and Technology傳播與科技學系台北夜市的形成,無形中也保存城市發展的歷史記憶。在人口密集、交通便利之處,攤販自然地聚集,賣起南北小吃、生活雜貨,提供都市人下班後一個休閒娛樂的去處,也滿足日常生活的基本需求。Item type:Item, 吳輝龍 打造學校漫畫國度(2010-06-06) ;陳柏臻 ;Department of Communication and Technology傳播與科技學系經營漫畫店要考慮很多的成本因素,包含書籍、人事成本、店租等。吳輝龍花了十四年的時間,在清大的水木活動中心開了一間漫畫店,並且將之經營的有聲有色,透過多年豐富的經驗,吳輝龍終於找出了一套適合在學校的經營方式,同時也感謝許多同學與顧客的支持。Item type:Item, 十分鐘了解NICO網站(2010-06-06) ;許庭瑜 ;Department of Communication and Technology傳播與科技學系到底什麼是NICO?就讓NICO的吉祥物,小電視醬來告訴你吧,讓你十分鐘了解NICO網站。Item type:Item, 楊恩典擁抱障礙 活出自信(2010-06-06) ;陳怡儒 ;Department of Communication and Technology傳播與科技學系也許出生沒有選擇的機會,但每個人都能給自己一個重新來過的機會,身為一個身障者,楊恩典的觀念卻比一般人正確。Item type:Item, Item type:Item, 揮灑 女畫家的魂(2010-06-06) ;陳維平 ;Department of Communication and Technology傳播與科技學系「諷刺而柔和,鋼鐵般堅硬,飛舞的蝴蝶那樣自由。微笑那樣動人,悲慘如同生活的苦難,極度痛苦的闡述……」這是段在女畫家芙烈達˙卡蘿(Frida Kahlo)為一場本土畫展中的介紹。以矛盾張力作為伏筆,電影中的歷史事件、和女畫家的傳奇融為一體,似乎期待觀眾可以在不同厚度的情感變化中,體會寫實和寫意相織的藝術熱情。Item type:Item, 電波拉皮 抗老噱頭炒作?(2010-06-06) ;黃艾如 ;Department of Communication and Technology傳播與科技學系隨著現代人壽命越來越長,如何克服老化變成一個重要的課題。而最近流行的微整形技術電波拉皮,也備受想要看起來更年輕又不想動刀的人所喜愛,但是電波拉皮將來的風險,卻鮮少被提及。Item type:Item, 科技發展與研究倫理的兩難(2010-06-06) ;郭伯宇 ;Department of Communication and Technology傳播與科技學系當全世界為生物科技的驚人成就喝采時,科學家的研究過程卻少有人關注,當科學家為了研究成果而做出一些具有道德爭議的行為時,傷害的不僅是研究者本身,更傷害了整個學界對外的觀感。Item type:Item, 舊倉庫 新藝術(2010-06-06) ;林忻 ;Department of Communication and Technology傳播與科技學系台中20號倉庫與高雄駁二倉庫不約而同使用廢棄閒置的舊倉庫,重新改建成藝術發展的區域,一改倉庫陽剛灰暗的的形象,加入濃厚的藝文氣息後,20號倉庫與駁二倉庫多了一種懷舊且充滿個性的味道,煥然一新的形象與籌畫,成功地讓中南部這兩座藝術倉庫成為台灣藝術與設計發展重要的一環。Item type:Item, 清幽檜木區 觀霧巨林步道(2010-06-06) ;溫苔詠 ;Department of Communication and Technology傳播與科技學系位於新竹縣五峰鄉與苗栗縣泰安鄉交界處,觀霧森林遊樂區內的檜山巨木步道,由於地形與氣候條特殊,造就了當地不同於平地的生態環境。由於前幾年的一場艾莉風災,林務局持續封園對當地進行復育工作,直到去年才逐步對外開放。