Browsing by Issue Date, starting with "2019-05-23"

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Effect of an External Electric Field on the Fluorescence of a pi-Conjugated Polymer Film of P3HT Sandwiched between FTO and PMMA Published as part of The Journal of Physical Chemistry virtual special issue "Hai-Lung Dai Festschrift"
(2019-05-23)
Awasthi, Kamlesh
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Chiou, Chin-Shiun
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Iimori, Toshifumi
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Diau, Eric Wei-Guang
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Ohta, Nobuhiro
We report the photoexcitation dynamics of poly(hexylthiophene-2,5-diyl) (P3HT) as a solid film sandwiched between conducting films of a fluorine-doped tin-oxide-coated glass substrate (FTO) and an insulator film of poly(methyl methacrylate) (PMMA), from measurements of the effects of an external electric field on the absorption and photoluminescence (PL) spectra of P3HT. An Ag film was coated on the PMMA film; the FTO and Ag films served as electrodes to apply an external electric field to P3HT. According to the effects of a quadratic electric field, the lifetime of the emitting state of P3HT increased in the presence of that external field, resulting in an enhanced fluorescence quantum yield. An enhancement and quenching of fluorescence were observed also on applying an external electric field having the opposite polarity to the P3HT film between FTO and Ag films, which results from a field-induced change of both the population of the emitting state following photoexcitation and the rate of nonradiative decay at the emitting state. The dependence of the field-induced change of photoluminescence on the polarity of the applied external electric field between the FTO and Ag films was interpreted as an influence of an internal field located in the P3HT film sandwiched between FTO and PMMA films. These results of the effects of an electric field on the PL of a P3HT film sandwiched between FTO and PMMA films are compared with the effects on PL of P3HT sandwiched between a semiconductor film of TiO2 or a Sb2S3 film and a PMMA film.
電視劇影響想婚意願？單身女性現身說法
(2019-05-26)
王允姸
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Department of Communication and Technology
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傳播與科技學系
【單身化社會：單身女性何去何從】專題

最近出了許多甜甜的青春電視劇，劇中塑造婚後的劇情是否對單身女性想婚意願產生影響？單身女性現身說法！
日韓偶像大PK
(2019-05-26)
蘇嘉薇
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卓瑋哲
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Department of Communication and Technology
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傳播與科技學系
大家對於日韓兩國偶像文化，有什麼看法呢？日本偶像還是韓國偶像比較受大家喜愛呢？一起來看看吧！
養成系v.s.實力派　Produce 48日韓大戰
(2019-05-26)
郭玟妤
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Department of Communication and Technology
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傳播與科技學系
你哈韓還是哈日？韓國人氣選秀節目《PRODUCE 101》搭上日本AKB48集團，《PRODUCE 48》實力派和養成系的對決就此展開！
日系韓系風格大PK
(2019-05-26)
李庭安
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Department of Communication and Technology
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傳播與科技學系
日系韓系傻傻分不清楚？沒關係，本期專題（女性藝人為例，日本以AKB48為代表）從風格、制度、營運，一次傳授，快來看看日系韓系風格大PK吧！
惡作劇之　吻的魅力分析
(2019-05-26)
林函諭
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Department of Communication and Technology
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傳播與科技學系
【「漫改」漫畫改編真人的感情世界】專題

《惡作劇之吻》風靡亞洲，多國進行改編。究竟《惡作劇之吻》如此盛行的原因是什麼呢？
交清美食特輯　五家必吃銅板美食
(2019-05-26)
黃齡萱
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Department of Communication and Technology
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傳播與科技學系
交清兩校周邊美食特輯，距離交大清大最近的美食聖地就是──清大夜市，跟著喀報來一探究竟！
生活由「你訂」！
(2019-05-26)
許家芸
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Department of Communication and Technology
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傳播與科技學系
「沒有人是生來就想創業的，都是因為有一個點、一個不爽、一個衝動，才會想創業。」今天讓我們跟著你訂的創辦人陳伯宇，一起來看看新創公司——雲仲資訊，一路走來的心路歷程。
總編輯的話
(2019-05-26)
洪蜜禪
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Department of Communication and Technology
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傳播與科技學系
本期為喀報316期，共計十二篇文章，包含1篇本期專題、5篇文化現象、3篇影音新聞、1篇人物特寫、1篇藝文評論、1篇遊戲評論。本期專題「偶愛偶像　日韓偶像文化探討」，帶你深入了解偶像的秘辛。
讓程式變得有趣！　拓可思科創
(2019-05-26)
梁書瑜
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許可晴
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Department of Communication and Technology
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傳播與科技學系
拓可思科創和交大產學中心合作，以視覺化、圖像化、實體化的方式引導小朋友在學習程式時能不感到害怕和陌生，藉此激發小朋友的學習動機。
當黑暗降臨　「遊」鬱症的世界
(2019-05-26)
呂奕廷
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Department of Communication and Technology
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傳播與科技學系
《第九藝術的綻放：獨立遊戲》專題

今年（2019）3月由Sirhaian一人獨立開發出的《當黑暗降臨（When the darkness comes）》試圖塑造憂鬱症患者眼中的世界，讓玩家以第一人稱的視角體驗。
極簡宿舍改造計畫
(2019-05-26)
林芷懷
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Department of Communication and Technology
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傳播與科技學系
【極簡生活修練題】專題

維持宿舍簡單乾淨或許是不少學生的難題，把「斷」、「捨」、「離」的概念實際帶進大學宿舍又會產生什麼樣的火花呢？
奇特網購經驗大排行
(2019-05-26)
殷顗霖
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Department of Communication and Technology
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傳播與科技學系
【網路時代「購」不夠？了解知識一起GO！】專題

網購雖然方便，有時卻會出現哭笑不得的情形。就讓我們來看看那些最瞎、最狂、最無言的網購經驗吧！
演技真人秀熱潮　反思演員定義
(2019-05-26)
陳盈璇
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Department of Communication and Technology
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傳播與科技學系
【演員的挑戰】專題
演員究竟是什麼？以《演員的誕生》、《聲臨其境》等競技類演技真人秀的出現，來討論演員的現狀。
甜蜜的負荷　凌度C後援會
(2019-05-26)
卓瑋哲
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Department of Communication and Technology
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傳播與科技學系
【2019愛凌依舊　甜蜜天后王心凌】專題

只要有王心凌出現的地方，一定有一群粉絲會到場力挺，其中有從出道就喜歡王心凌的人、有中途才加入的，也有近年新增的成員，團結一致只為了讓王心凌感受到滿滿的應援，他們是凌度C。
遇見你的真心　節目中的愛情觀
(2019-05-26)
蔡佳妤
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Department of Communication and Technology
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傳播與科技學系
【現實與幻想之間的「愛」】專題

透過分析中國的戀愛實境秀節目—《遇見你真好》，探討在節目中呈現的愛情觀。
偶愛偶像　日韓偶像文化探討
(2019-05-26)
蘇嘉薇
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郭玟妤
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李庭安
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卓瑋哲
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Department of Communication and Technology
日、韓兩國偶像文化在台灣，是許多人的生活重心之一。日本跟韓國偶像型塑的差異與相同處是什麼呢？日韓偶像到底在夯什麼？誰才是最受歡迎的？兩國塑造偶像的同時，是不是也有「特定意識型態」植入呢？讓我們來解密。
學生自主學習社群　成長新動力
(2019-05-26)
蔡佳妤
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Department of Communication and Technology
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傳播與科技學系
由教學發展中心舉辦的學生自主學習社群，鼓勵學生以跨越系所的專業與同伴知識交流，讓學生在課程以外的地方，持續性地學習成長。
Enhancement in speed and responsivity of uni-traveling carrier photodiodes with GaAs0.5Sb0.5/In0.53Ga0.47As type-II hybrid absorbers
(2019-05-27)
Naseem
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Ahmad, Zohauddin
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Chao, Rui-Lin
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Chang, Hsiang-Szu
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Ni, C-J
We demonstrate a top-illuminated high-speed uni-traveling carrier photodiode (UTC-PD) with a novel design in the p-type absorber, which call effectively shorten the photon absorption depth at telecommunication wavelengths (1.31 similar to 1.55 mu m) and further enhance the bandwidth-efficiency product of UTC-PD. In our proposed new UTC-PD structure, the p-type In0.53Ga0.47As absorption layer is replaced by the type-II GaAs0.5Sb0.5 (p)/In0.53Ga0.47As (i) hybrid absorber. Due to the narrowing of the bandgap and enhancement of the photo-absorption process at the type-II interface between the GaAs0.5Sb0.5 and In0.53Ga0.47As layers, our device shows an over 16.7% improvement in the responsivity compared with that of UTC-PD with the same thickness of pure In0.53Ga0.47As absorber (0.7 mu m) and a zero optical coupling loss. Our demonstrated device with a simple top-illuminated structure offers a large active mesa (25 mu m). a wide optical-to-electrical (O-E) bandwidth (33 GHz), a high responsivity (0.7 A/W), and a high saturation current (>5 mA) under 1.31 mu m optical wavelength. These promising results suggest that our proposed PD structure can fundamentally overcome the trade-off among bandwidth. efficiency. and device active diameter of high-speed PDs. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Visible light communication and positioning using positioning cells and machine learning algorithms
(2019-05-27)
Chuang, Yu-Cheng
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Li, Zhi-Qing
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Hsu, Chin-Wei
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Liu, Yang
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Chow, Chi-Wai
We propose and experimentally demonstrate a practical visible light position (VLP) system using repeated unit cells and machine learning (ML) algorithms. ML is employed to increase the positioning accuracy. Algorithms of the 2nd-order regression ML model and the polynomial trilateral ML model are discussed. More than 80% of the measurement data have position error within 4 cm when using the 2nd-order regression ML model, while the position error is within 5 cm when using the polynomial trilateral ML model. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement