نتایج جستجو برای: crystalline tio2

تعداد نتایج: 62003  

2011
Zhensheng Hong Mingdeng Wei Tongbin Lan Lilong Jiang Guozhong Cao

Unique nanorod-like mesocrystals constructed from ultrathin rutile TiO2 nanowires were successfully fabricated for the first time using a low-temperature additive-free synthetic route, and the mesocrystal formation requirements and mechanism in the absence of polymer additives were discussed. The ultrathin nanowires were highly crystalline and their diameters were found to be ca. 3–5 nm. The ru...

Journal: :International Journal of Hydrogen Energy 2022

We report an underpotential deposition (UPD) route of Cu2ZnSnS4/TiO2 nanotube arrays (TiO2-NTAs) in which the Kesterite (Cu2ZnSnS4) was employed as a sensitizer to enhance photoconversion efficiency TiO2-NTAs. Cu2ZnSnS4 simultaneously coated on TiO2-NTAs by depositing its constituent metals from precursor ions via electrochemical atomic layer (EC-ALD) and subsequent annealing. The detailed synt...

Journal: :Scientific reports 2016
Xiaoye Xin Tao Xu Lan Wang Chuanyi Wang

Black brookite TiO2 single-crystalline nanosheets with outstanding photocatalytic activity toward CO2 reduction is prepared by a facile oxidation-based hydrothermal reaction method combined with post-annealing treatment. Large amount of Ti(3+) defects are introduced into the bulk of brookite nanoparticles, which increases the solar energy absorption and enhances the photocatalytic activity.

2017
Lisha Fan Xiang Gao Dongkyu Lee Er‐Jia Guo Shinbuhm Lee Paul C. Snijders Thomas Z. Ward Gyula Eres Matthew F. Chisholm Ho Nyung Lee

Finding a route to synthesize nanostructures with a high-surface area is critical for developing high-performance energy materials. In article number 1700045, Lisha Fan, Ho Nyung Lee, and co-workers demonstrate that precise control of nonequilibrium growth conditions during pulsed laser deposition can produce single-crystalline anatase TiO2 nanobrush architectures with large surface areas termi...

Journal: :Chemical communications 2006
Shao-Lu Li Ke-Jian Jiang Ke-Feng Shao Lian-Ming Yang

Two novel metal-free organic dyes containing thienothiophene and thiophene segments have been synthesized. Nano-crystalline TiO2 dye-sensitized solar cells were fabricated using these dyes as light-harvesting sensitizers, and a high solar energy-to-electricity conversion efficiency of 6.23% was achieved.

Journal: :Physical chemistry chemical physics : PCCP 2015
Zeliang Qiu Changwen Liu Guoxing Pan Weili Meng Wenjin Yue Junwei Chen Xun Zhou Fapei Zhang Mingtai Wang

To develop solution-processed and novel device structures is of great importance for achieving advanced and low-cost solar cells. In this paper, we report the solution-processed solar cells based on inorganic bulk heterojunctions (BHJs) featuring a bulk crystalline Sb2S3 absorbing layer interdigitated with a TiO2 nanoarray as an electron transporter. A solution-processed amorphous-to-crystallin...

Fatima Allawi, M. A. Mahdi, M.J Kadhim, Sami Najah Abaas,

     Zinc Oxide (ZnO) nanorods and titanium dioxide (TiO2) nanostructures thin films were prepared onto glass substrates by the chemical bath deposition (CBD) method. The ZnO was structured as nanorods (NRs) while TiO2 was formed as nanoflowers plate as confirmed by Field-Emission Scanning Electron Microscope (FESEM) images. The ZnO/Fe3O4 and TiO2/Fe3O4 nanostructures thin films were prepared v...

2013
Sannian Song Zhitang Song Cheng Peng Lina Gao Yifeng Gu Zhonghua Zhang Yegang Lv Dongning Yao Liangcai Wu Bo Liu

A phase change memory (PCM) cell with atomic layer deposition titanium dioxide bottom heating layer is investigated. The crystalline titanium dioxide heating layer promotes the temperature rise in the AlSb3Te layer which causes the reduction in the reset voltage compared to a conventional phase change memory cell. The improvement in thermal efficiency of the PCM cell mainly originates from the ...

2012
Helin Cao Rama Venkatasubramanian Chang Liu Jonathan Pierce Haoran Yang M. Zahid Hasan Yue Wu Yong P. Chen

Related Articles Improvement of optical performance of ZnO/GaN p-n junctions with an InGaN interlayer Appl. Phys. Lett. 101, 161905 (2012) Atomic structure of closely stacked InAs submonolayer depositions in GaAs J. Appl. Phys. 112, 083505 (2012) Experimental and molecular dynamics study of the growth of crystalline TiO2 J. Appl. Phys. 112, 073527 (2012) Degenerate crystalline silicon films by ...

Journal: :Catalysts 2023

The study compares the photocatalytic behavior of TiO2, NiO-TiO2, and Ni-NiO-TiO2 photocatalysts in hydrogen production from methanol–water solution. TiO2 NiO-TiO2 with theoretical NiO loading 0.5, 1.0, 3.0 wt. % were prepared by sol–gel method. partial reduction at 450 °C. showed significantly higher than photocatalysts. structural, textural, redox, optical properties all studied using XRD, SE...

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