نتایج جستجو برای: silar

تعداد نتایج: 223  

Journal: :Acta poloniae pharmaceutica 2008
Gabriela Kłaczkow Elzbieta L Anuszewska

In the present study we used chiral high performance liquid chromatography and gas chromatography to determine the stereoisomers of racemic alpha-tocopherol. The Chiralcel OD-H and Silar-100 AT columns were used. Statistical evaluation of the results established the precision of these methods.

2007
Oleg Lupan Sergiu Shishiyanu Lee Chow Teodor Shishiyanu

Undoped and Sn, Ni-doped nanostructured ZnO thin films were deposited on glass substrates using a successive ionic layer adsorption and reaction (SILAR) method at room temperature. The SILAR deposited zinc oxide films have been rapid photothermal processing (RPP) at various temperatures to study the effect of annealing on the sensing properties. Structural, electrical and sensing properties wer...

Masood Mehrabian, Sonya Aslyousefzadeh

Zinc oxide nanorod arrays (ZnO NRs) were grown on the ZnO seed layers via an aqueous solution using hydrothermal method and their photovoltaic properties were investigated. It was found that the growth period of 20 minutes is the optimum condition for ZnO nanorods growth, the cell containing these nanorods was considered as a reference cell. In order to further increase the cell performance, Zn...

Journal: :Physical chemistry chemical physics : PCCP 2013
Vito Cristino Serena Berardi Stefano Caramori Roberto Argazzi Stefano Carli Laura Meda Alessandra Tacca Carlo Alberto Bignozzi

Indium tin oxide (ITO) surfaces of triple junction photovoltaic cells were functionalized with oxygen evolving catalysts (OECs) based on amorphous hydrous earth-abundant metal oxides (metal = Fe, Ni, Co), obtained by straightforward Successive Ionic Layer Adsorption and Reaction (SILAR) in an aqueous environment. Functionalization with Fe(iii) oxides gave the best results, leading to photoanode...

Journal: :Open Chemistry 2023

Abstract The effect of CdS/ZnS composite-sensitized TiO 2 nanotube array (TNTA) on the photocatalytic reduction CO was studied. quantum dots sensitized TNTA by successive ionic layer adsorption and reaction (SILAR) cycle method, CdS/ZnS-TNTA composite semiconductor materials were prepared. loading amount depends number SILAR cycles. effects times, volume flow, light intensity performance main p...

Journal: :Chemical communications 2013
Jin-Wook Lee Jong-Deok Hong Nam-Gyu Park

A wet-chemical method for increasing the number of quantum dots (QDs) per unit surface area of TiO2 was developed. High density QD surface coating was induced by a surface charge controlled SILAR method, which led to a sixfold increase in photocurrent density from 2.15 mA cm(-2) to 15.03 mA cm(-2) in a QD-sensitized solar cell based on a Hg-doped PbS sensitized 2.4 μm-thick TiO2 film.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - پژوهشکده علوم نانو 1394

در این پژوهش، ابتدا الکترولیت توسط روش های مختلف آماده و بهینه سازی شد. در مرحله بعد، نانوذرات tio2 با موفقیت از طریق روش سل-ژل سنتز و برای نشست لایه ی tio2 و p25 از روش الکتروفورز (epd) بر روی لایه شیشه ای fto استفاده شد. علاوه بر این، برای ارتقاء راندمان تبدیل انرژی، از ضخامت های مختلف cds بر روی tio2 توسط روش جذب و واکنش پی در پی لایه یونی (silar) نهشت شده است. اثر نانوذرات tio2 و ضخامت cds ...

Journal: :Trends in Sciences 2022

In this report, zinc oxide thin film was successfully deposited on a glass substrate by using simple and low-cost technique i.e. modified Successive Ion Layer Adsorption Reaction (SILAR). Prepared characterized for its physical chemical properties XRD diffraction, Field Emission Scanning Electron Microscopy (FESEM), energy dispersive spectroscopy (EDS), UV-VIS spectroscopy, Raman Fourier transf...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده شیمی 1392

سلول های خورشیدی حساس شده با نقاط کوانتومی یک گزینه کم هزینه برای نسل سوم سلولهای خورشیدی در نظرگرفته می-شوند. اساس این نوع سلولها، سلولهای خورشیدی حساس شده با رنگ هستند. در این تحقیق از نانوذرات tio2 سنتز شده به روش هیدروترمال استفاده شده است. در این روش مقدار مشخصی از tio2 با محلول غلیظ سود مخلوط شده و در دمای بالا برای مدت معینی قرار می گیرد. از روش جذب و واکنش پی در پی لایه های یونی (روش si...

2015
Hong Sun Peini Zhao Fanjun Zhang Yuliang Liu Jingcheng Hao

Ag2S/CdS/TiO2 hybrid nanotube array films (Ag2S/CdS/TNTs) were prepared by selectively depositing a narrow-gap semiconductor-Ag2S (0.9 eV) quantum dots (QDs)-in the local domain of the CdS/TiO2 nanotube array films by spotting sample method (SSM). The improvement of sunlight absorption ability and photocurrent density of titanium dioxide (TiO2) nanotube array films (TNTs) which were obtained by...

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