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Questions related to Thin Films and Nanotechnology
For example, if I wish to add a distributed Bragg Reflector (DBR) in thin film c-Si or CIGS solar cell, how can I measure the reflectance and absorbance of the film with respect to different...
05 May 2017 646 7 View
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05 May 2017 154 1 View
Zno based Thin film Transistors used mainly Glass, Can we use Silicon instead of Glass
05 May 2017 6,644 2 View
I have to fabricate Thin Film Transistor on Silicon Substrate so which material i can use in channel layer?
05 May 2017 692 2 View
In solar cell applications I need to model PN junction, In lumerical's FDTD we can create new material in material database, there we can make any material with desired np density (electron hole...
05 May 2017 3,795 3 View
I would like to deposit thin film (50 - 100 nm) of SiO2 over PDMS substrate to passivate it from some solutions. I did that deposition using a dielectric sputter. It seems like a thin layer formed...
05 May 2017 3,951 3 View
these structure are based on semiconductor nanowires that most be interconnected in somehow to the get contacted and trabnfer electrons , but there are many deactrivating processes that can occurr...
05 May 2017 2,672 3 View
Thin films of (50 nm - 130 nm ) thickness. Deposited by thermal evaporation. Electrical properties of ZnS thin films (22 °C - 240 °C).
05 May 2017 8,221 4 View
For example if we make a composite of SnO2 and ZnO. Than whats about the absorption band edge and bandgap of their heterostructure. Is it necessary that the absorption band edge of the...
05 May 2017 3,256 3 View
i am depositing gold thinfilm on silicon substrate. Aluminium,copper get oxidized even at room temperature, but gold is stable at room temperature(it wont get oxideized at room temperature). But...
05 May 2017 7,296 2 View
I am in search of vendors for SOI wafer with device layer thickness of 150nm, can anybody suggest me some vendors who can supplies these SOI wafers
05 May 2017 6,531 1 View
Hi I wanna disperse modified silica Aerosil 300 (with MPTMS). If I use probe sonication (100w power for 20min), Is it possible the breakdown of silica nanoparticles and degradation of surface...
05 May 2017 4,611 3 View
I want to grow ZnO Nanowires on glass substrate by hydrothermal growth. I found various methods. I have following doubts... Seed layer importance and effect on NWs growth, size of Nanoparticles,...
05 May 2017 5,097 3 View
i need know what is the suitable shape of surface and thickness ,
05 May 2017 1,830 2 View
Dear Colleagues, I need small explanation for nanowires growth with sputtering. Why was nanowires growth used rarely for nanowires growth? is there any difficulty using in sputtering for nanowires...
05 May 2017 9,461 1 View
I am depositing Germanium on silicon by thermal evaporation. I am using Tungsten boat. My question is that can i use same boat multiple time for germanium deposition (Reuse same boat for next...
05 May 2017 3,208 4 View
Please provide the schematic as well as let me know the parameters at which this process is carried out.
05 May 2017 5,311 1 View
I dispersed graphene into polyurethane and applied onto steel. The thickness of my coating is less than 25 um. So far, I have technical found that graphene is randomly dispersed at low...
05 May 2017 682 3 View
I am working with a tribo geometry for food studies and wish to characterize the properties of the pdms surface.
05 May 2017 8,358 6 View
I want to etching or patterning for bilayer channel layer of transistor consist of SnO2/ZnO on ZrO2 dielectric layer Generally, I thought that above process would proceed by HCl etchant But I...
05 May 2017 1,612 4 View
My superhydrophobic coating loses its effect , Please help .
05 May 2017 9,193 3 View
In my process, I want to remove amorphous silicon layer on multi-crystalline silicon surface. The setup I have is wet etching process. The recent data I have had shown HF+HNO3+H2O is not a good...
05 May 2017 1,871 2 View
Dear Colleagues I need a sapphire substrate (0001) coated with 20-30 nm thin platinum (111) layer for my film deposition. I couldn´t find any supplier for this substrate. Any idea where I may find...
05 May 2017 5,120 3 View
I tried differents strategies to deposit CZTSe by electrodeposition one step, but sometimes layers are brown and powdery, sometimes smooth, gray and shiny. I need to know how to recognize the good...
03 May 2017 2,932 5 View