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From the last several days, I have done so many exfoliations but I am unable to find big size 1L,2L, and 3L of TMCs for further experiment. May you please share your experience and suggest to me...
01 May 2022 9,404 1 View
We have prepared pure ZnO, and Cu doped ZnO samples by varying Cu doping percentages and using the co-precipitation method. In the XRD spectra, after doping, the (002) plan show a shifting of...
28 April 2022 8,537 11 View
Hello everyone! I am trying to reproduce a research paper in SILVACO based on GaN HEMT. But getting incorrect Id-Vg curve for conventional GaN HEMT given in paper. Please tell what changes should...
15 March 2022 1,131 3 View
Hello Everyone, I am trying to precipitate protein using organic solvents such as acetonitrile and isopropanol. The ppt occurs but as soon I add TFA (1%) or TFA in an organic solvent the ppt does...
01 February 2022 9,487 3 View
How to determaned by XRD the metal oxide the nanoparticles decorated by metal nanoparticles.
31 January 2022 3,607 5 View
I was looking for the techniques to measure exciton diffusion length. Several techniques are reported. In the steady-state and time-resolved surface quenching techniques, people use a simple...
28 January 2022 2,551 0 View
I have data looks like uploaded image (scatter plot). In scatter plot, I can clearly distinguish two different Gaussian curve, but origin or excel cannot. Data is sorted by x axis value, so...
14 January 2022 8,577 6 View
I still have a doubt regarding the theoretical values? Is energy difference between HOMO and LUMO is the optical band energy on compared with Tauc plot?
04 December 2021 8,647 3 View
I want to calculate electron mobility between bilayer 2D materials. how can I do this using quantum espresso DFT simulation pack
21 September 2021 747 4 View
I am synthesizing Mn-Fe LDH via the co-precipitation method, using a molar ratio of 2:1, Cl as the anion, and without a nitrogen purge. I am missing out on the [003] and [006] peaks in XRD. I feel...
13 September 2021 7,628 0 View
We have been using the FLS-920 PL instrument to calculate lifetime for our solid samples(CuO, Bi2WO6). Our Procedure : Disperse the solid sample in Ethanol or DI water and place in cuvette to...
25 August 2021 1,346 4 View
I am going to integrate CST Microwave Studio with CST Design Studio, adding a diode to my planar antenna, to rectify the output voltage. However, I am not able to add a diode as the Device Model...
15 June 2021 1,201 5 View
suggest some metal oxides that could be combined with graphene oxide to fabricate good supercapacitor materials.
11 June 2021 7,246 7 View
There are two materials A and B out of which one is a metal and second is a semiconductor . How can we identify and classify them just by touching or observing them without performing any test?
06 June 2021 2,094 11 View
It is know that XPS (X-ray Photoelectron Spectroscopy) gives elemental composition (what elements are present) and the chemical state/s (what other elements they are bonded to). I wish to know how...
05 June 2021 6,893 2 View
I'm looking for the simplest and quick way to determine HOMO and LUMO energy of a semiconductor without UPS spectroscopy. Any advise will be helpful please. Thank you
04 June 2021 3,406 5 View
We need optical, electrical and structural properties. What are desire characteristics of sample for photo- sensors applications?
19 May 2021 5,900 8 View
I am looking to include the value of conduction band density and valance band density of semiconductor material inside Silvaco code.
18 May 2021 8,569 3 View
Is it possible for a p-type semiconductor to give electrochemical oxygen evolution reaction .If yes , then what would be possible mechanism of charge transfer
12 May 2021 6,610 4 View
Hello! I'm trying to modulate the electron density in a thin layer of InGaAs highly doped (25nm, 1e19cm-3 n-doped) using field effect with a MOS-like structure, but for the moment, I can only...
09 May 2021 8,213 3 View
An exciton is a bound state of an electron and hole which are attracted to each other by the electrostatic Coulomb force and with this it is electrically neutral quasiparticle that exists in...
08 May 2021 580 8 View
When Fermi energy crosses the conduction band, then what will be the material? n-type semiconductor or metallic?
07 May 2021 4,880 7 View
I have seen in several publications that an extremely sharp/narrow photoluminescence peak is attributed to some defect such as Nitrogen interstitials. However, the peaks appear to be far too...
06 May 2021 7,592 3 View
how flat band potential is related to charge transfer resistance at semiconductor /electrolyte interface in p type semiconductor
06 May 2021 4,665 2 View