نتایج جستجو برای: gap chromic film

تعداد نتایج: 230399  

2005
M. Y. Nadeem Waqas Ahmed M. F. Wasiq

ZnS thin film properties are overviewed in this research paper. These include absorbance, transmittance, optical band gap, refractive index and structure (on the basis of X-ray diffraction and scanning electron microscopy). It has been observed that these film properties are dependent on various parameters e.g. thickness of the film, deposition method, deposition rate, substrate material, subst...

2008
J. P. Borah

ZnS nanocrystalline thin films were grown into the polyvinyl alcohol matrix and were synthesized by chemical route. Films were prepared on glass substrate by varying the deposition parameters and pH of the solution. Nanocrystalline thin film prepared under optimum growth conditions shows band gap value 3.88 eV as observed from optical absorption data. The band gap is found to be higher (3.88 eV...

2012
Gavin Conibeer Ivan Perez-Wurfl Xiaojing Hao Dawei Di Dong Lin

The concept of third-generation photovoltaics is to significantly increase device efficiencies whilst still using thin-film processes and abundant non-toxic materials. A strong potential approach is to fabricate tandem cells using thin-film deposition that can optimise collection of energy in a series of cells with decreasing band gap stacked on top of each other. Quantum dot materials, in whic...

2017
M. D. Heinemann R. Mainz F. Österle H. Rodriguez-Alvarez D. Greiner C. A. Kaufmann T. Unold

Optical and electrical properties of complex semiconducting alloys like Cu(In,Ga)Se2 (CIGS) are strongly influenced by the reaction pathways occurring during their deposition process. This makes it desirable to observe and control these properties in real-time during the deposition. Here we show for the first time the evolution of the band gap and the sub-band-gap defect absorption of CIGS thin...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2011
Justyn Jaworski Keisuke Yokoyama Chris Zueger Woo-Jae Chung Seung-Wuk Lee Arun Majumdar

Because of their unique optical and stimuli-response properties, polydiacetylene-based platforms have been explored as an alternative to complex mechanical and electrical sensing systems. We linked chromic responsive polydiacetylene (PDA) onto a peptide-based molecular recognition element for trinitrotoluene (TNT) molecules in order to provide a system capable of responding to the presence of a...

Journal: :Journal of materials research and technology 2023

Electrochemical plating is the most widely used coating process for metalizing commodity polymers, such as acrylonitrile–butadiene–styrene (ABS). Conventionally, ABS polymer pretreated in concentrated sulfochromic acid solution before to develop a highly porous surface topography that ensures adhesion. Unfortunately, using chromic produces extremely hazardous chemical waste, which costs manufac...

Journal: :تولیدات دامی 0
مهناز صالحی مربی پژوهشی، بخش فرآوری تولیدات دامی، مؤسسه تحقیقات علوم دامی کشور، کرج ژاله میرعبدالباقی مربی پژوهشی، بخش تحقیقات تغذیه، مؤسسه تحقیقات علوم دامی کشور، کرج محمد علی کمالی سروستانی استادیار پژوهشی، معاونت پژوهشی سازمان آموزش و تحقیقات کشاوررزی، تهران

the study was consequently investigated effect of different tanning methods on apparent density, thickness, tensile strength and also extension percentage in three different tanning (chromic, alum and vegetable) of grown part of ostrich skins (n = 15; 12 to 14 months). average apparent density and thickness of leathers were 0.7 ± 0.0gr/cm2 and 1.7 ± 0.1 mm, respectively. the breaking load, tens...

Journal: :Journal of clinical and diagnostic research : JCDR 2013
A Bharathi D B Dharma Reddy G S Sharath Kote

BACKGROUND AND OBJECTIVES A significant number of women experience perineal trauma following vaginal deliveries and they require stitches. This may result in perineal pain, dyspareunia and faulty healing. The type of suture material which is used, will influence these factors. This study was conducted to compare the impact of two absorbable suture materials which were used for episiotomy repair...

Journal: :Proceedings of the Physical Society of London 1894

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