Results 301 to 310 of about 459,875 (323)

A novel ZnO nanostructure: rhombus-shaped ZnO nanorod array

Chemical Communications, 2010
A facile scalable two-step approach based on a low-temperature aqueous electrodeposition and a solid-state crystal phase transformation process was developed to grow rhombus-shaped ZnO nanorod arrays which showed markedly improved hydrogen storage capacity.
Feng, Xu, Yinong, Lu, Litao, Sun, Linjie, Zhi   +3 more
openaire   +2 more sources

Electroluminescence from ZnO nanowires with a p-ZnO film/n-ZnO nanowire homojunction

Applied Physics B, 2008
ZnO homojunction light-emitting diodes based on ZnO nanowires were fabricated on Si(100) substrates. An N–In codoped p-type ZnO film grown by ultrasonic spray pyrolysis and an unintentionally doped n-type ZnO nanowire quasi-array grown by an easy low-temperature hydrothermal method were employed to form the homojunction diode.
H. Sun, Q. Zhang, J. Zhang, T. Deng, J. Wu   +4 more
openaire   +1 more source

Manipulation on ZnO heterostructures: from binary ZnO–Ag to ternary ZnO–Ag–polypyrrole

CrystEngComm, 2014
A ternary composite ZnO–Ag–polypyrrole was synthesized through a fast reaction between zinc acetate and hexamethylenetetramine followed by an in situ surface polymerization process. The sample exhibited a superior catalytic performance in the degradation of methylene blue under both UV irradiation and visible light.
Juan Li, Jian Yan, Chengzhan Liu, Lihong Dong, Hui Lv, Wendong Sun, Shuangxi Xing   +6 more
openaire   +1 more source

Nanaostructured ZnO, ZnO-TiO2 And ZnO-Nb2O5 As Solid State Humidity Sensor

Advanced Materials Letters, 2012
Present paper deals with a comparative performance of n-type ZnO, ZnO-TiO2 and ZnO-Nb2O5 nanomaterials as humidity sensors. ZnO was synthesized through hydroxide route. TiO2 and then Nb2O5 were used as additives for improvement of sensitivity. Scanning electron micrograph of ZnO shows rod-like particles with average diameter 40 nm.
openaire   +1 more source

การวัดลักษณะสมบัติของโครงสร้างนาโน ZnO ที่เตรียมโดยกระบวนการขนถ่ายเฟสไอโดยใช้สารผสม ZnO/CNTs

โครงสร้างนาโน ZnO ได้ถูกเตรียมลงบนแผ่นฐาน Si โดยเทคนิคการขนถ่ายเฟสไอโดยใช้สารตั้งต้นเป็นสารผสม ZnO/CNTs กระบวนการนี้สามารถทำได้ที่อุณหภูมิต่ำกว่าจุดหลอมเหลวของ ZnO สัณฐานของผิวหน้า องค์ประกอบทางเคมีและโครงสร้างของผลึกได้ถูกตรวจสอบ และวัดโดยกล้องจุลทรรศน์อิเล็กตรอนแบบส่องกราด (SEM) การวิเคราะห์ธาตุเชิงพลังงาน (EDS) และการทดลองการเลี้ยวเบนของรังสีเอ็กซ์ (
openaire   +1 more source

From single ZnO multipods to heterostructured ZnO/ZnS, ZnO/ZnSe, ZnO/Bi2S3 and ZnO/Cu2S multipods: controlled synthesis and tunable optical and photoelectrochemical properties

CrystEngComm, 2010
This manuscript describes the selective modification of ZnO multipods with a series of wide bandgap and narrow bandgap semiconductors (ZnS, ZnSe, Bi2S3, and Cu2S). ZnO multipods are firstly synthesized via the aqueous phase reaction of Zn2+ ions with KOH at a temperature lower than 70 °C, which is simple, facile and free of organic capping agents ...
Pen Chen, Li Gu, Xuebo Cao
openaire   +1 more source

Room temperature blue LED based on p-ZnO/(CdZnO/ZnO) MQWs/ n-ZnO

Journal of Luminescence, 2016
Abstract Blue multiple quantum well light-emitting diodes comprising of p-ZnO/(Cd0.12Zn0.88O/ZnO) multiple quantum wells/n-ZnO were grown on n-Si substrates using dual ion-beam sputtering deposition technique. X-ray diffraction of individual thin films revealed growth preferentially in c-axis direction perpendicular to the substrate ...
AWASTHI, V, PANDEY, SK, VERMA, S, MUKHERJEE, S   +3 more
openaire   +2 more sources

?????????????????? ?? ???????????????? ???????????????? ???? ZnO

2016
The paper presents a short review of studies of ZnO coatings. Using a method of X-ray phase analysis (DRON-2.0 device in Cu-k emission), measurements of optical transmission, optical absorption (the Spectrophotometer ENGLAND (1000SERIES=CECIL 1021), optical density using a laser stand, and measurements of volt-ampere characteristics, it was revealed ...
openaire   +3 more sources

?????????????????????? ???????????????????????? ????????????-???????????????? ???????????????? ???????????????????? ?????????????????????????? ???????????????? ZnO

2019
We propose a procedure for synthesis of nanometer-sized thread-like zinc oxide crystals by gas epitaxis via the mechanism ???vapor-liquid-crystal??? (VLC). Arrays of statistically distributed nano-whiskers on polished silicon substrates were prepared. Samples were studied by x-ray diffraction analysis and scanning electron microscopy (SEM).
openaire   +1 more source