Sometimes while performing uv vis of thin films I used to get transmission more than 100% . How to resolve this issue?

I am keeping the lamp warm for atleast 30 min but still I m getting 110% transmission . I am using Shimadzu solidspec-3700 uv- vis-nir spectrophotometer. Please help to resolve this issue.

11 December 2019 8,242 9 View

How to decide when to use PVDF filter and When to use PTFE filters while spin coating?

For ex - While preparing ZnO by solgel method we use PVDF filter and while preparing thin film of P3HT or any other material of OPV we use PTFE.

05 June 2019 2,834 3 View

What is the best to start for learning simulations for Organic Photovoltaics ?

How one can learn independently Simulations like drift and diffusion modelling and many other relevant simulations .

02 March 2019 7,627 1 View

Which is better structure for OSCs : Inverted or conventional and why ?

which of the two structures is better and what are the reasons which makes one better as compared to other.

02 March 2019 5,008 3 View

I want to do research in solar cells .is it a good topic for research.please provide some guidance ?

Please share some good papers of solar panels

07 August 2018 6,364 23 View

I need some good articles regarding cleaning of ITO substrate for solar cells. please help ?

looking for some good material regarding cleaning of ITO substrate.

07 August 2018 2,901 3 View

Transient Photovoltage (TPV) ,Transient Photocurrent (TPC

I want some detailed relevant study material/ lab manual/ book/paper which discusses the detailed functioning of these two techniques.

01 January 1970 9,383 0 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How to improve the adhesion between germanium and silicon monoxide thin film layers using EBEAM evaporation?

I want to deposit multilayer coating of germanium and silicon monoxide on silicon wafer using ebeam evaporation?

21 February 2021 2,141 3 View

How can I measure the thickness of thin layers deposited on textured glass susbtrates?

I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.

21 February 2021 5,465 4 View

How do I calculate absorption coefficient of my thin film if I dont know the thickness? Or how can I calculate the thickness of my sample?

I have done Uv-vis characterisation of my thin film and have received absorbance and transmittance data. Now I want to calculate the absorption coefficient but I dont know the thickness of my...

21 February 2021 7,148 8 View

How to construct different filler shape in MD simulations?

Is there any way to construct different initial filler shapes like triangle, square, rectangle, pillar, and tube in any simulation software.

20 February 2021 1,750 1 View

Can fractal dimension of thin film surfaces affects the electrons energy states?

As fractal dimension of a thin film surface implies the irregularity in the surface. Is it possible that the energy states of the electrons are also affected by the fractal dimension?

19 February 2021 5,509 3 View

What is the reason film thickness increased?

what is the reason film thickness increased when increased doping concentrations give some reasons The measured film thickness is 156, 282, 394, 548 and 681 nm for 0, 1.5, 2.5, 3.5, and 4.5 wt....

17 February 2021 8,987 5 View