Browsing by Issue Date, starting with "2014-08-07"

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Electrical Connecting Element and Method for Manufacturing the Same
(2014-08-07)
CHEN Chih
;
LIU Taochi
;
HUANG Yi-Sa
;
LIU Chien-Min
An electrical connecting element for connecting a first substrate and a second substrate and a method for manufacturing the same are disclosed. The method of the present invention comprises: (A) providing a first substrate and a second substrate, wherein a first copper film is formed on the first substrate, a first metal film is formed on the second substrate, a first connecting surface of the first copper film has a (111)-containing surface, and the first metal film has a second connecting surface; and (B) connecting the first copper film and the first metal film to form an interconnect, wherein the first connecting surface of the first copper film is faced to the second connecting surface of the first metal film.
A facile green antisolvent approach to Cu2+-doped ZnO nanocrystals with visible-light-responsive photoactivities
(2014-08-07)
Lu, Yi-Hsuan
;
Lin, Wei-Hao
;
Yang, Chao-Yao
;
Chiu, Yi-Hsuan
;
Pu, Ying-Chih
An environmentally benign antisolvent method has been developed to prepare Cu2+-doped ZnO nanocrystals with controllable dopant concentrations. A room temperature ionic liquid, known as a deep eutectic solvent (DES), was used as the solvent to dissolve ZnO powders. Upon the introduction of the ZnO-containing DES into a bad solvent which shows no solvation to ZnO, ZnO was precipitated and grown due to the dramatic decrease of solubility. By adding Cu2+ ions to the bad solvent, the growth of ZnO from the antisolvent process was accompanied by Cu2+ introduction, resulting in the formation of Cu2+-doped ZnO nanocrystals. The as-prepared Cu2+-doped ZnO showed an additional absorption band in the visible range (400-800 nm), which conduced to an improvement in the overall photon harvesting efficiency. Time-resolved photoluminescence spectra, together with the photovoltage information, suggested that the doped Cu2+ may otherwise trap photoexcited electrons during the charge transfer process, inevitably depressing the photoconversion efficiency. The photoactivity of Cu2+-doped ZnO nanocrystals for photoelectrochemical water oxidation was effectively enhanced in the visible region, which achieved the highest at 2.0 at% of Cu2+. A further increase in the Cu2+ concentration however led to a decrease in the photocatalytic performance, which was ascribed to the significant carrier trapping caused by the increased states given by excessive Cu2+. The photocurrent action spectra illustrated that the enhanced photoactivity of the Cu2+-doped ZnO nanocrystals was mainly due to the improved visible photon harvesting achieved by Cu2+ doping. These results may facilitate the use of transition metal ion-doped ZnO in other photoconversion applications, such as ZnO based dye-sensitized solar cells and magnetism-assisted photocatalytic systems.
A facile green antisolvent approach to Cu2+-doped ZnO nanocrystals with visible-light-responsive photoactivities
(2014-08-07)
Lu, Yi-Hsuan
;
Lin, Wei-Hao
;
Yang, Chao-Yao
;
Chiu, Yi-Hsuan
;
Pu, Ying-Chih
An environmentally benign antisolvent method has been developed to prepare Cu2+-doped ZnO nanocrystals with controllable dopant concentrations. A room temperature ionic liquid, known as a deep eutectic solvent (DES), was used as the solvent to dissolve ZnO powders. Upon the introduction of the ZnO-containing DES into a bad solvent which shows no solvation to ZnO, ZnO was precipitated and grown due to the dramatic decrease of solubility. By adding Cu2+ ions to the bad solvent, the growth of ZnO from the antisolvent process was accompanied by Cu2+ introduction, resulting in the formation of Cu2+-doped ZnO nanocrystals. The as-prepared Cu2+-doped ZnO showed an additional absorption band in the visible range (400-800 nm), which conduced to an improvement in the overall photon harvesting efficiency. Time-resolved photoluminescence spectra, together with the photovoltage information, suggested that the doped Cu2+ may otherwise trap photoexcited electrons during the charge transfer process, inevitably depressing the photoconversion efficiency. The photoactivity of Cu2+-doped ZnO nanocrystals for photoelectrochemical water oxidation was effectively enhanced in the visible region, which achieved the highest at 2.0 at% of Cu2+. A further increase in the Cu2+ concentration however led to a decrease in the photocatalytic performance, which was ascribed to the significant carrier trapping caused by the increased states given by excessive Cu2+. The photocurrent action spectra illustrated that the enhanced photoactivity of the Cu2+-doped ZnO nanocrystals was mainly due to the improved visible photon harvesting achieved by Cu2+ doping. These results may facilitate the use of transition metal ion-doped ZnO in other photoconversion applications, such as ZnO based dye-sensitized solar cells and magnetism-assisted photocatalytic systems.
Plasmonic nanostructures for light trapping in organic photovoltaic devices
(2014-08-07)
Chou, Chun-Hsien
;
Chen, Fang-Chung
;
光電工程學系
;
顯示科技研究所
;
Department of Photonics
Over the past decade, we have witnessed rapid advances in the development of organic photovoltaic devices (OPVs). At present, the highest level of efficiency has surpassed 10%, suggesting that OPVs have great potential to become competitive with other thin-film solar technologies. Because plasmonic nanostructures are likely to further improve the efficiency of OPVs, this Article reviews recent progress in the development of metal nanostructures for triggering plasmonic effects in OPVs. First, we briefly describe the physical fundamentals of surface plasmons (SPs). Then, we discuss recent approaches toward increasing the light trapping efficiency of OPVs through the incorporation of plasmonic structures. Finally, we provide a brief outlook into the future use of SPs in highly efficient OPVs.
STREAMING ENCODER, PROSODY INFORMATION ENCODING DEVICE, PROSODY-ANALYZING DEVICE, AND DEVICE AND METHOD FOR SPEECH SYNTHESIZING
(2014-08-07)
Chen Sin-Horng
;
Wang Yih-Ru
;
Chiang Chen-Yu
;
Hsieh Chiao-Hua
A speech-synthesizing device includes a hierarchical prosodic module, a prosody-analyzing device, and a prosody-synthesizing unit. The hierarchical prosodic module generates at least a first hierarchical prosodic model. The prosody-analyzing device receives a low-level linguistic feature, a high-level linguistic feature and a first prosodic feature, and generates at least a prosodic tag based on the low-level linguistic feature, the high-level linguistic feature, the first prosodic feature and the first hierarchical prosodic model. The prosody-synthesizing unit synthesizes a second prosodic feature based on the hierarchical prosodic module, the low-level linguistic feature and the prosodic tag.
GRAPHITE OXIDE AND/OR GRAPHENE PREPARATION METHOD
(2014-08-07)
WEI KUNG-HWA
;
DANG VAN THANH
A graphite oxide or graphene preparation method includes providing a plasma electrolytic apparatus, where an electrolytic solution is provided and a graphite electrode is configured as a cathode of the plasma electrolytic apparatus; and providing a cathodic current so as to initiate a plasma electrolytic process at the graphite cathode to obtain graphite oxide or graphene. The graphite oxide can be synthesized through plasma electrolytic processing at relatively low temperature under atmospheric pressure within a very short period of time, without the need for concentrated acids or strong oxidizing agents. The present invention may prepare graphite oxide with plasma electrolytic process directly from graphite, without requiring any prior purification. This plasma electrolytic process of the present invention is quite promising and provided with advantages such as low cost, simple setup, high efficiency, and environmental friendliness.
Dirac fermion relaxation and energy loss rate near the Fermi surface in monolayer and multilayer graphene
(2014-08-07)
Luo, C. W.
;
Tseng, P. S.
;
Chen, H. -J.
;
Wu, K. H.
;
Li, L. J.
Ultrafast dynamics of Dirac fermions near the Fermi surface in monolayer and multilayer graphene are revealed using optical pump mid-infrared probe spectroscopy. The energy loss rate of Dirac fermions is also determined via energy-resolved transient transmissivity spectra, which is significantly suppressed as the number of layers in graphene increases.
Isatin derivatives and isoxazolinones from tandem anti-Michael three-component assembly and oxidation
(2014-08-10)
Deng, Jie-Cheng
;
Chuang, Shih-Ching
;
交大名義發表
;
National Chiao Tung University
Energy dependent oscillations in the angular distribution of O(D-1) + Xe inelastic scattering
(2014-08-10)
Garofalo, Lauren A.
;
Smith, Mica C.
;
Boering, Kristie A.
;
Lin, Jim Jr-Min
;
應用化學系
Theoretical study on absorption, fluorescence, and resonance Raman scattering spectra of silver cluster, Ag-n and Ag-n-pyridine complexes (n=1-3)
(2014-08-10)
Chen, Si Ying
;
Lin, Sheng Hisen
;
Chang, A. Hsiu-Hua
;
應用化學系
;
Department of Applied Chemistry
Uncover nucleophilic conjugate 1,3-addition of phosphines to polyynoates
(2014-08-10)
Chuang, Shih-Ching
;
Deng, Jie-Cheng
;
Kuo, Chih-Wei
;
應用化學系
;
Department of Applied Chemistry
Preparation of imprinted organic-inorganic hybrids for exhibiting high adsorption and recognition capability
(2014-08-10)
Tseng, Kai-hsun
;
Chang, Sue-min
;
環境工程研究所
;
Institute of Environmental Engineering
Preparation of TiO2 nanotube arrays/Ti electrode by anodic oxidation method for the degradation of dye in aqueous solutions
(2014-08-10)
Liu, Yi-Jin
;
Liu, Ching-Fang
;
Huang, Chihpin
;
Hu, Chi-Chang
;
環境工程研究所
Release of silver nanoparticle from nanocomposite membranes in water treatment processes
(2014-08-10)
Lin, Justin Chun-Te
;
Ling, Ronald
;
Qian, Jianjiang
;
Yang, Hui-Ling
;
Huang, Chihpin
Phosphine-catalyzed cycloaddition of enynoates with [60]fullerene via initial phosphines 1,3-addition to enynoates
(2014-08-10)
Wu, An-Ju
;
Chuang, Shih-Ching
;
應用化學系
;
Department of Applied Chemistry
Fabrication of boron-doped diamond-like carbon (BDDLC) electrode and its applications for the measurements of Hg2+, Cu2+, and Pb2+ ions in aqueous solutions
(2014-08-10)
Juang, Yaju
;
Nurhayati, Ervin
;
Huang, Chihpin
;
Hu, Chi-Chang
;
Rajkumar, Muniyandi
Kinetics and absolute UV absorption spectrum of a methyl substituted Criegee intermediate CH3CHOO
(2014-08-10)
Smith, Mica
;
Ting, Wei-Lun
;
Chang, Chun-Hung
;
Boering, Kristie
;
Lin, Jim Jr-Min
Dendrimer modified magnetic nanoparticles for adsorption of precious metals
(2014-08-10)
Yen, Chia-Hsin
;
Lien, Hsing-Lung
;
Chung, Jung-Shing
;
Yeh, Hund-Der
;
環境工程研究所
Dynamics of the O-18(D-1)+(CO)-O-16 reaction by crossed beam methods and implications for non-mass-dependent oxygen isotope effects in bulk photochemistry experiments
(2014-08-10)
Estillore, Armando D.
;
Jin, Bing
;
Huang, Chia-Pin
;
Garofalo, Lauren
;
Smith, Mica
視訊監控方法
(2014-08-11)
洪一平
;
洪晟峰
;
施朝欽
;
陳冠文
本發明提供一種視訊監控方法，包括：從一影像獲得一第一邊緣點，將該第一邊緣點二值化以決定一第二邊緣點；計算該第二邊緣點之一亂度與一亂度閾值；根據該亂度閾值過濾該第二邊緣點中亂度高之邊緣點，以獲得一第三邊緣點，經由對該第三邊緣點取樣來構成一背景影像；根據該背景影像比對一新取樣邊緣點，以獲得一非背景比例；以及當該非背景比例大於預設之一第一閾值時，將一特定影像事件發生前後之二影像，各分割成由複數個邊緣區塊所構成之二結構影像，並計算該二結構影像之該些邊緣區塊之一一致比例，當該一致比例低於之一預設匹配閾值時，則發出一警報。本發明採取二階段式偵測，能在複雜的環境下，偵測出是否有人為蓄意破壞，並能有效降低環境變化產生的誤報機率。