01 January 1970 1 7K Report

Is it simple spin coating followed by heating or electrodeposition?

More Hammad Cheema's questions See All
How we can prepare SnO2 (tin oxide) paste for screen printing from commercially available nano-particles (18-20 nm size)?

I am familiar for making paste out of Al2O3 nano-particles with TERPINOL AND ETHYL CELLULOSE, but was wondering if any one is familiar with a direct method to prepare SnO2 paste. Thanks.

10 November 2018 425 4 View

Why the series connected tandem solar cells with mis-matched photo-current result in low fill factor?

What causes the lower fill factor, in series connected tandem solar cells with slightly different photocurrent for each device.

01 February 2017 2,583 0 View

How can I reduce the aggregation of organic dyes on TiO2 surface for DSSC?

Possible options are additions of CDCA-coadsorbate, and co-sensitization. I have tried both options, CDCA do not help a lot by increasing to 100x compared to amount of dye. Co-sensitization...

04 May 2016 1,671 11 View

How can we explain the increase in excited state life time of terephthalic acid after hydroxylation?

Measured excited state life time for terephthalic acid (2.4 ns) and 2-hdyroxyl terephthalic acid (7.6ns) by TCSPC method in acetonitrile which was obtained after monoexponential fitting of the...

09 October 2015 553 2 View

How does UV Stabilizer 3638 works compared to 1164?

UV-Stabilizers are very useful additive for engineering thermoplastics. Since 1164, goes through well studies ESIPT (excited state intramolecular proton transfer) where as 3638 do not have...

08 September 2015 7,849 8 View

Is ESOP(excited state oxidation potential) in eV (electron volt) different than LUMO (lowest un-occupied molecular orbital) in eV of a molecule?

On what basis these are different? Do same applied to GSOP ( ground state oxidation potential) and HOMO level of a molecule? 

08 September 2015 3,997 4 View

Acetonitrile (ACN) vs. toluene as a solvent for photophysical studies of organic systems?

I measured the Nano-second transient absorption spectroscopy and singlet oxygen emission for a terephthalate based system (attached), in ACN it shows weak fluorescence emission intensity, strong...

07 August 2015 10,017 12 View

What difference it mean from broad vs. sharp triplet-triplet excited state transient abs. signals?

e.g. one attached Fig. 1 (broad) vs. Fig. 2 (slightly sharp) does it tell anything about nature of triplet state? it was measured by using Laser Flash Photolysis nanosecond transient absorption...

06 July 2015 3,755 7 View

What does the sharp versus broad peaks in electronic absorption spectrum tells about nature of electronic transition?

Looking at attached graph for trimers based on terphthalic acid (broad red shifted) and iso-phthalic acid (sharp, blue shifte), I was wondering what kind of effect can cause such change in...

06 July 2015 2,290 10 View

Does anyone have experience with Dimethyl terephthalate or terephthalic acid photophysics and photochemistry?

Most of the literature search for me result into hits which are either done in 1970's or late 80's. I am interested mainly in knowing about transient absorption and photophysical nature singlet,...

05 June 2015 6,534 1 View

Similar questions and discussions
• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

Basis set and input instruction to calculate HOMO and LUMO using Orca for Imidazolium based organic salts?

Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...

09 August 2024 5,444 7 View

How do I conformally do PR spin coating on trench structure?

I did PR spin coating on trench structure. I used AZ P4620 PR and the thickness or PR is around 11um. The substrate is Si. And my trench structure depth is 141um(negative way). Even though I...

08 August 2024 2,298 0 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close