Younas Iqbal

10 Questions 9 Answers 0 Followers

Questions related from Younas Iqbal

Can Sb is replaced by Te in Mg3.2Sb1.5Bi0.49Te0.01?

I am trying to enhance the thermoelectric performance of Mg3.2Sb1.5Bi0.49Te0.01 through doping. Various researchers has optimized this material for various concentrations of Te through using...

05 June 2021 9,682 4 View

How to optimize the elemental composition of Mg3.2Sb1.5Bi0.49Te0.01?

What are the roles to optimize the elemental composition of an alloy/compound, for example there are some researchers who used the same alloy in different elemental ratios like,...

01 June 2021 8,237 4 View

Is there any reason for electrical conductivity of semiconductor to increase with passage of time?

I am observing an increase in electrical conductivity of my semiconducting material with time, i.e I had tested my samples and initially it gave some value and when I retested the same sample with...

05 October 2020 8,693 4 View

How to produce pure form of MgAgSb.?

Hello everyone... I am working on synthesis of MgAgSb for thermoelectric application through high energy ball milling and spark plasma sintering technique. In spite of following all the...

12 June 2020 7,500 5 View

Is there any mathematical formula between reflectance and absorbance coefficient or between reflectance and transmissiance cooeffecient T%

I am working on band gap calculation using UV vis spectroscopy of ZnO nanorods that i grown on gold coated glass . As it is non transmittance so it has 100% absorbance and 0% transmittance. the...

07 December 2016 233 7 View

Why ZnO nanorods be formed in round shape rather then hexagonal shape?

I have synthesized ZnO nanorods from different concentrations with hexagonal shape, but at some concentrations(1 mM, 3 mM,7 mM) round rods with rough surface are observed instead of hexagonal...

07 August 2016 9,981 5 View

Can anyone suggest me co(two different elements)- doping with ZnO through hydro-thermal method to enhance the properties ?

i am working on ZnO nanorods synthesis through hydrothermal method. I want to enhance electrical and optical properties of ZnO nanorods through doping. Most of the elements are already doped with...

18 April 2016 7,206 3 View

Can some body explain to me the best way to produce ZnO nanorods via the hydrothermal method?

I am working on ZnO nanorods synthesis through hydrothermal method. I used Cr-Au coated glass substrate. I used equimolar solution of Zinc nitrate hexa hydrate and hexamethylene tetramine(C6H12N4)...

08 October 2015 1,880 0 View

How is the nanorods structure formed in hydrothermal method?

I am working on ZnO nanorods synthesis through hydrothermal method. In literature the common precursors are used for all the nanostructures of ZnO. My question is that why nanorods are formed...

26 July 2015 839 9 View

What is the role of nitrogen gas in synthesis of ZnO nanorods in RF sputtering?

For a long time I have been facing a problem in understanding. I am working on synthesis of aligned nanorods by RF sputtering. I studied a paper entitled "Enhancement of photoelectrochemical...

08 October 2014 6,768 3 View