نتایج جستجو برای: نانودرات zns

تعداد نتایج: 2976  

Journal: :Journal of the European Optical Society: Rapid Publications 2021

Abstract In this work, we focus on the colloidal quantum dot based light-emitting diodes (QD-LEDs) performance. First, synthesize spherical QDs with a CdS core that covered wider band gap II–VI semiconductor acting as shell (ZnS). order to nano crystal structure of CdS/ZnS/CdS/ZnS, use reverse micelle process. These four-layer well dots (QWQDs) can generate white light emission. The positional ...

Journal: :Nanoscale 2012
Yangping Hong Jun Zhang Xian Wang Yongjing Wang Zhang Lin Jiaguo Yu Feng Huang

Ambient S annealing was adopted to regulate the crystallinity of a ZnS microsphere, which resulted in a significant improvement in the photocatalytic hydrogen production activity (PHPA). Moreover, with S ambient treatment, wurtzite ZnS showed better PHPA than sphalerite ZnS, possibly because the inter-polar electric field of the wurtzite phase could promote the separation of photo-excited elect...

Journal: :Nanoscale 2011
Jun Liu Zaiping Guo Wenjun Wang Qingsong Huang Kaixing Zhu Xiaolong Chen

Hexagonal wurtzite ZnS nanowires radially arrayed on cubic zinc-blende ZnS hollow spheres have been successfully achieved for the first time, and such novel heterogeneous ZnS hollow urchin-like hierarchical nanostructures show greatly enhanced photocatalytic properties due to their two-phase enhanced light-harvesting and high surface-to-volume ratio.

2016
Jennifer Foster Jennifer E. Foster Robert A. Fjeld

A ZnS(Ag) detector was successfully used in the direct detection of alpha particles from aqueous solutions and the results were compared to the passivated ion implanted planar silicon (PIPS) continuous air monitor (CAM) detector. The ZnS(Ag) detector is recommended for on-line detection of gross alpha radioactivity from highlevel liquid waste process streams; however, the detector suffers from ...

ژورنال: :بلورشناسی و کانی شناسی ایران 0
عاطفه امام دوست department of physics, faculty of sciences, university of guilan, rasht, iranگروه فیزیک، دانشکده علوم، دانشگاه گیلان صابر فرجامی شایسته department of physics, faculty of sciences, university of guilan, rasht, iranگروه فیزیک، دانشکده علوم، دانشگاه گیلان مازیار مرندی department of physics, faculty of sciences, university of arak, arak, iran2- گروه فیزیک، دانشکده علوم، دانشگاه اراک

در این پژوهش نانو ذرات cds و پوسته/هسته (cds/zns) با استفاده ازروش سنتز شیمیایی مرطوب تهیه شدند و از 3-mercaptopropionic acid (mpa) به عنوان مولکول پوششی استفاده شد. اثر پوسته­ی zns بر خواص اپتیکی و ساختاری cds مورد بررسی قرارگرفت. شدت فوتولومینسانس (intensity of photolumincence) نانو ذرات cds پس از پوشش پوسته­ی  zns افزایش یافت. طیف پراش پرتو x نانوذرات cds پس از گرمادهی در دمای اتاق، ساختار س...

2015
Lata Wanjari D. P. Bisen Raunak Kumar Tamrakar

Pure and copper doped ZnS nanoparticles in powder form were prepared by wet chemical route method by using thioglycerol as a capping agent. The XRD studies indicate that the samples are cubic in nature. The thermoluminescence (TL) behavior of pure and copper doped ZnS has been studied for fixed 10 min UV exposure time; TL glow curve shows a single peak at 165.1°C and 184.3°C temperature respect...

2017
Chikako Wada Yoshiki Iso Tetsuhiko Isobe Hirokazu Sasaki

Department of Applied Chemistry, Faculty o 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8 [email protected]; Fax: +81 45 566 155 SHOEI CHEMICAL INC., 2-1-1 Nishi-Shinju † Electronic supplementary information as-prepared CIS, CIS/ZnS, and CIS/ZnS photographs of CIS, CIS/ZnS, and CIS/ light and 365 nm near-UV light (Fig. S2 and CIS/ZnS-MPA QD powder samples un of as-prepared and MPA-modied QDs (...

2013
Liang-Wen Ji Yu-Jen Hsiao I-Tseng Tang Teen-Hang Meen Chien-Hung Liu Jenn-Kai Tsai Tien-Chuan Wu Yue-Sian Wu

The preparation and characterization of heterojunction solar cell with ZnS nanocrystals synthesized by chemical bath deposition method were studied in this work. The ZnS nanocrystals were characterized by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). Lower reflectance spectra were found as the annealing temperature of ZnS film increased on the textured p-...

2012
Hiroshi Kataoka Satoshi Ueno

Recently, zonisamide (ZNS) has been approved as a new adjunctive therapy for motor complications of Parkinson's disease (PD). More recently, ZNS was reported to be effective for the management of impulse control behavior in PD, suggesting potential effects on non-motor PD symptoms. Dream enactment associated with aggressive, violent behavior can carry a serious risk of injury to patients, as we...

2015
J. SANTOS CRUZ D. SANTOS CRUZ M. C. ARENAS-ARROCENA MOURE FLORES

Semiconducting zinc sulphide (ZnS) has been demonstrated that is an excellent candidate for substituting the possible toxic materials as CdS as n-type material on optoelectronic devices, and photocatalytic materials. The Chemical Bath Deposition technique (CBD) is very simple: it requires temperatures below 100°C, a reactor that can be a beaker and the reaction can be carried out at atmospheric...

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