نتایج جستجو برای: cu2o tio2

تعداد نتایج: 23763  

Journal: :ACS applied materials & interfaces 2014
Jinyan Xiong Zhen Li Jun Chen Shanqing Zhang Lianzhou Wang Shixue Dou

A novel class of one-dimensional (1D) plasmonic Ag@Cu2O core-shell heteronanowires have been synthesized at room temperature for photocatalysis application. The morphology, size, crystal structure and composition of the products were investigated by XRD, SEM, TEM, XPS, and UV-vis instruments. It was found the reaction time and the amount of Ag nanowires play crucial roles in the formation of we...

2015
Ting Chen Liangliang Tian Yuan Chen Bitao Liu Jin Zhang

Au/Cu2O nanocomposites were successfully synthesized by a facile one-pot redox reaction without additional reducing agent under room temperature. The morphologies and structures of the as-prepared products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The electrocatalytic performance of Au/Cu2O nanocomposites towar...

Journal: :ACS applied nano materials 2022

A dye-sensitized photocatalytic (DSP) approach is considered as one of the promising approaches for developing visible light- and near-infrared light-responsive photocatalysts. DSP systems are still affected by significant drawbacks, such low light absorption efficiency. Recently, it has been demonstrated that plasmonic metal nanostructures can be used to enhance efficiency overall dye-sensitiz...

Journal: :Catalysts 2022

Semiconductor materials are the basis of electronic devices employed in communication and media industry. In present work, we report synthesis characterization mixed metal oxides (MOs) as p,n-junction photocatalysts, demonstrate correlation between preparation technique properties materials. Solid-state UV-visible diffuse reflectance spectroscopy (UV-VIS DRS) allowed for determination light abs...

Journal: :Advanced Energy Materials 2021

Although electrochemical impedance spectroscopy (EIS) is a powerful technique for investigating optoelectronic devices, realistic equivalent circuit (EC) models suitable multi-layered water splitting electrodes have rarely been reported due to their complex nature. In the present study, utility of EIS method photocathodes photoelectrochemical demonstrated. By analyzing data TiO2-coated Sb2Se3 p...

2015
Sung Hun Wee Po-Shun Huang Jung-Kun Lee Amit Goyal

Heteroepitaxial, single-crystal-like Cu2O films on inexpensive, flexible, metallic substrates can potentially be used as absorber layers for fabrication of low-cost, high-performance, non-toxic, earth-abundant solar cells. Here, we report epitaxial growth of Cu2O films on low cost, flexible, textured metallic substrates. Cu2O films were deposited on the metallic templates via pulsed laser depos...

2014
Yuxi Wang Da Huang Xingzhong Zhu Yujie Ma Huijuan Geng Ying Wang Guilin Yin Dannong He Zhi Yang Nantao Hu

A facile synthesis route of cuprous oxide (Cu2O) hollow spheres under different temperatures without the aid of a surfactant was introduced. Morphology and structure varied as functions of reaction temperature and duration. A bubble template-mediated formation mechanism was proposed, which explained the reason of morphology changing with reaction temperature. The obtained Cu2O hollow spheres we...

2014
Takeo Oku Tetsuya Yamada Kazuya Fujimoto Tsuyoshi Akiyama

Copper oxide (Cu2O)-based heterojunction solar cells were fabricated by spin-coating and electrodeposition methods, and photovoltaic properties and microstructures were investigated. Zinc oxide (ZnO) and Cu2O were used as nand p-type semiconductors, respectively, to fabricate photovoltaic devices based on In-doped tin oxide/ZnO/Cu2O/Au heterojunction structures. Short-circuit current and fill f...

2015
Chih-Hung Tsai Po-Hsi Fei Chih-Han Chen

In this study, a chemical oxidation method was employed to fabricate coral-like Cu2O nano/microstructures on Cu foils as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The Cu2O nano/microstructures were prepared at various sintering temperatures (400, 500, 600 and 700 °C) to investigate the influences of the sintering temperature on the DSSC characteristics. First, the Cu foil...

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