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Controlled Growth of Nanofiber Network Hole Collection Layers with Pore Structure for Polymer-Fullerene Solar Cells

(2008-12-04)

Huang, Jen-Hsien

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Ho, Zhong-Yo

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Kekuda, Dhananjay

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Chu, Chih-Wei

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Ho, Kuo-Chuan

In this study, we compare a series of hole collector layers (HCLs) with pore structure fabricated via an electrochemical method to construct polymer-fullerene solar cells. The HCLs with a pore structure can offer a large interface to enhance hole collection; however, the series resistances are also increased by the relatively pore morphology. Photovoltaic device with the largest short circuit current (J(sc)) and efficiency is achieved using poly(3,4-propylenedioxythiophene) (PProDoT) as HCLs due to its highly porous structure and reasonable series resistance. By further optimizing the thickness of the HCLs in the solar cell, a power efficiency of 3.57% under simulated sun light is achieved.

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The trans/gauche conformational equilibrium and associated thermodynamic parameters of liquid 1,2-dibromoethane as studied by infrared electroabsorption spectroscopy

(2008-12-04)

Lee, I-Chun

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Hamaguchi, Hiro-o

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Shigeto, Shinsuke

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應用化學系

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應用化學系分子科學碩博班

Infrared electroabsorption spectroscopy is used to study the trans/gauche conformational equilibrium and associated thermodynamic parameters of the two conformers of liquid 1,2-dibromoethane at room temperature. Electric-field modulation induces an increase in the population of the gauche conformer that has the permanent dipole moment and a decrease in that of the trans conformer that has a center of inversion symmetry and hence no dipole moment. The Gibbs free energy difference DG and the entropy difference Delta S between the gauche and trans conformers are obtained as 4.5 kJ mol(-1) and -2.7 J K(-1) mol(-1), respectively, using the reported enthalpy difference. (C) 2008 Elsevier B. V. All rights reserved.

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Fabrication and Characterization of Anodic Titanium Oxide Nanotube Arrays of Controlled Length for Highly Efficient Dye-Sensitized Solar Cells

(2008-12-04)

Chen, Chien-Chon

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Chung, Hsien-Wen

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Chen, Chin-Hsing

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Lu, Hsuch-Pei

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Lan, Chi-Ming

The performance of dye-sensitized solar cells (DSSC), made of highly ordered anodic titanium oxide (ATO) nanotube (NT) arrays produced directly on Ti foil, depends on the length of these arrays. We controlled these lengths L from 4 to 41 mu m while varying the concentration (0.1, 0.25, 0.5, and 0.8 wt %) of the electrolyte (NH(4)F) in ethylene glycol in the presence of H(2)O (2 vol %) with anodization for various periods (t = 0.5-8 h). The compact and bundle layers introduced. during anodization were effectively removed upon simple ultrasonic cleaning in deionized water containing submicrometer particles of Al(2)O(3) in a small proportion. The photovoltaic performance of the NT-DSSC devices (NH4F at 0.5 wt %) made of ATO films, as prepared, increased from 3.0% to 5.2% as L was increased from 6 mu m (t = 0.5 h) to 30 mu m (t = 8 h). After treatment of the ATO films with TiCl(4) in a two-step annealing process, the optimized NT-DSSC device attained an overall efficiency of 7.0% power conversion.

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Three-Dimensional Coherent Optical Waves Localized on Trochoidal Parametric Surfaces

(2008-12-05)

Lu, T. H.

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Lin, Y. C.

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Chen, Y. F.

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Huang, K. F.

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電子物理學系

We theoretically demonstrate that the three-dimensional (3D) coherent laser waves formed by the degenerate Laguerre-Gaussian modes with different longitudinal indices are well localized on rotating trochoidal parametric surfaces. We further use a large-Fresnel-number laser system to realize the existence of the laser modes related to trochoidal coherent states. Experimental results reveal that the exotic laser modes generally originate from a superposition of two degenerate standing-wave trochoidal coherent states.

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交大e-News第038期

(2008-12-05)

Secretariat

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國立交通大學秘書室

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人到底把動物當成什麼？

(2008-12-07)

林麗珊

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Department of Communication and Technology

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傳播與科技學系

出現在電影或戲劇的動物，常常能引起人類的愛戴，在一時的衝動下，大家開始飼養寵物，然而風潮褪去，人們的熱情也跟著冷卻，因此棄養的情況越來越嚴重。如果人類不那麼自私，深思熟慮並且正視此問題，將不會為無數動物帶來這種悲慘的下場。

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魔幻之筆-蜂鳥的女兒

(2008-12-07)

洪上筑

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Department of Communication and Technology

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傳播與科技學系

拉丁美洲一個美麗的傳說墨西哥的女人們是如此的動人卻被迫遷移當蜂鳥的女兒降臨時人們才了解原來抗爭是必須的作者對於文字的細膩刻畫真誠不造作給了我們一個夢夢到了墨西哥以及她的故事

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踏著步伐尋著夢

(2008-12-07)

郭大齊

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Department of Communication and Technology

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傳播與科技學系

旅行的意義目的與夢想

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賴崇光永不結束的棒球夢

(2008-12-07)

陳怡秀

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Department of Communication and Technology

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傳播與科技學系

人物專訪

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歡喜與哀愁那條小徑故事

(2008-12-07)

余建良

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Department of Communication and Technology

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傳播與科技學系

鹿寮坑是一個山坳，外部靠近竹東交流道，二十年前因為兜售外部土地而開發為工業區。內部靠近關西，因為地勢難以開發而保留原貌。這條從山頭而至山下的小路，恰巧說盡這件事情。

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起崩度日

(2008-12-07)

趙祿平

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Department of Communication and Technology

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傳播與科技學系

紀錄我的起崩日子

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寒冬中的熱血大材盃

(2008-12-07)

陳碩峰

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Department of Communication and Technology

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傳播與科技學系

在著寒冷的冬天中，全國的材料相關科系，於今年的12月6日在新竹交通大學舉行了大材盃。來自各地的隊伍，雖然頂著新竹風城寒冷的風，忍著11度的氣溫，但絲毫不減他們求勝的鬥志！

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《停車》時間停格生命轉圜

(2008-12-07)

楊睿愷

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Department of Communication and Technology

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傳播與科技學系

乘載人生無數變幻的車停妥後，時間在停車格之內暫留；生命，卻還是以浮動難料的姿態繼續錯綜交織著未來可能的篇章；重新啟動車子返回歸屬之地的自己，雖然心緒仍徬徨未明，但微微牽起唇瓣的微笑已然說明一切。

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電玩配樂淺嚐濱渦正志靈光

(2008-12-07)

何宛芯

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Department of Communication and Technology

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傳播與科技學系

日本優秀的音樂家並不少，但作曲、編曲皆能像浜渦這般靈動的人並不多。

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殘忍的甜蜜大地

(2008-12-07)

林潔

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Department of Communication and Technology

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傳播與科技學系

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交大料理王王大維

(2008-12-07)

梁素茵

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Department of Communication and Technology

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傳播與科技學系

DAVID

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大學畢業，研究生了沒

(2008-12-07)

黃惠琳

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Department of Communication and Technology

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傳播與科技學系

無

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退而不休的老玩童

(2008-12-07)

陳妙寧

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Department of Communication and Technology

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傳播與科技學系

二十多年義工經驗

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第三十六期總編輯的話

(2008-12-07)

王成宇

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Department of Communication and Technology

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傳播與科技學系

總編輯的話喔

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虛實交織的世界《完美的真空》

(2008-12-07)

楊雅筑

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Department of Communication and Technology

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傳播與科技學系

由評論15本捏造的書籍組成全本書評, 真假難辨,惡搞至極的科幻大作

Browsing by Issue Date, starting with "2008-12-04"