How can I partially remove the metal oxide layer for solar cell device?

Hi, I want to make a perovskite-based planar solar cell device. (electrode/HTL/perovskite/ETL/FTO) To fabricate the device, one electrode should be deposited on HTL and the other should be...

01 February 2021 229 6 View

Is there any general way to make polymer hydrophobic?

Now I try to make hydrophobic pillar array using Resin 3D printing (Formlab's 'Surgical Guide Resin'). But actually I don't know exactly what the resin is made of. But as we know it is the mixture...

05 July 2020 3,860 5 View

What is difference between GOQDs powder from freeze drying method and evaporation drying method?

My Graphene Oxide Quantum Dots(GOQD) are dissolved in DI water. So far, i used freeze drying method to get the GOQD powder. But it takes little long time. So i want to used evaporation drying...

10 March 2020 7,644 3 View

What is the best mesh fineness in calculating stress intensity factor with FE analysis?

Computed stresses strongly depend on the mesh fineness at a notch, but it seems to be not so strict for stress intensity factors. What is the best mesh fineness, and how about the accuracy in...

08 December 2019 8,810 1 View

How can I get the spread the CNT equally on the glass?

I want to spread the CNT(dissolved in DIwater) equally on the glass. I am using hotplate(100Celsius) now. I drop the CNT(dissolved in DIwater) equally. But After all the DIwater vaporize, the CNT...

03 December 2019 1,320 3 View

How does sublimation temperature change in Ultra-High Vacuum?

We have a molecule that we are thinking of annealing/depositing onto a substrate in ultra-high vacuum (UHV). From our past experience, we know that the molecule sublimates around 90C at 10mtorr....

16 July 2019 1,784 4 View

Why the atmosphere state should be argon gas when manufacture battery electrode?

I read a paper on the manufacture of battery electrodes that said the atmosphere state should be argon gas when manufacture the electrode. Is there any special reason?

27 June 2019 7,855 3 View

Does amplitude reduction factor of EXAFS have a strong temperature dependence?

We performed an EXAFS measurement for some alloys at 20 K. But we couldn't do it for pure elements at 20 K. Does amplitude reduction factor (SO2) of EXAFS have a strong temperature dependence?...

31 March 2019 7,655 6 View

Good anti-mouse c-Rel antibody for Western blot and/or immunofluorescence staining of cryosections?

I am looking for a good antibody to detect mouse c-Rel in Western blot and/or immunofluorescence staining of cryosections. We used to use sc-71 from Santa Cruz but it has been discontinued. The...

20 February 2019 7,936 2 View

How can i use HPLC for GABA measurement?

Hi. I have a question. I would like to use HPLC for GABA measurements. I would like to use the column with Zorbax Eclipse Plus C18, but I wonder how. Help!

24 January 2019 3,281 4 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

Runs of nucleotides in Sanger sequencing?

I performed site directed mutagenesis, transformation, and then I sent out plasmids for Sanger sequencing and found out that there is extension of DNA just before the stop codon. I am not sure...

27 February 2021 547 3 View