Can any one show me the main differences between "potentiostat" and "electro- chemical working station"
If I know the band gap if a certain semiconductor, and I would like to calculate the value of the absorption coefficient numerically using the following equation: how to determine the values of...
01 February 2017 3,517 1 View
I want to make modeling and simulation for thin film solar cell and thin film interfaces composed from nano structured materials. But I don't have any experience in that field. So any one can...
10 November 2016 2,447 43 View
I had made many Au Counter electrodes using ion sputtering for different times. But the problem is these counter electrodes are not mechanically stable on the FTO substrate and peeled of with the...
02 March 2016 2,859 2 View
I want to get reduced graphene oxide powder, So, Is there is any method to prevent the re- stacking of graphene sheets after the reduction of graphene oxide?
02 March 2016 6,175 5 View
Can any one tell me how to differentiate experimentallybetween direct allowed and direct forbidden transitions in direct band gap semiconductors. is there is a table or a database shows the...
01 February 2016 910 7 View
I made my counter electrode from nickel sulfide- Graphene composite on FTO substrate by using PVDF as a binder. But when the QDSSCs assembled by using polysulfide electrolyte, the counter...
09 October 2015 3,848 3 View
my counter electrode for the quantum dot sensitized solar cell made from nickel sulfide. In the presence of polysulfide electrolyte, the counter electrode dissolving and contaminating the working...
09 October 2015 455 3 View
I want to use a Ultra-high-performance lamp as a light source in measuring the J-V curve of solar cell. But I want to know first the full spectrum of this lamp. does it emits in the UV range or...
04 May 2015 8,597 5 View
I need to measure the J-V curve for solar cell using Princeton Versastat 4 potentiostat. How can I connect the terminals of the potentiostat?
03 April 2015 5,901 11 View
the most Raman spectrometers use LASER wavelengths of 533 and 633 during characterizing Graphene. When a LASER of wavelength 785 nm is used the D & G peaks in the spectrum are greatly shifted...
03 April 2015 2,628 9 View
Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...
30 July 2024 906 2 View
I do not know much about FTIR! The material Benzethonium Chloride USP was compared to a reference standard in regards to FTIR, as per the USP testing: Identification B. Infrared absorption (FTIR),...
16 July 2024 6,918 7 View
Dear all, I'm currently working with CHI potentiostat and performing Impedance. However, for the circuit fitting the instrument must be connected to the computer. Since I prefer to analyse the...
10 July 2024 8,880 4 View
I will polymerise Aniline on ITO glass WE, using 1M of H2SO4 and a potentiostat. However, I am not sure if I have to do the electrochemical polymerisation inside a hood. Is it necessary? Is the...
10 July 2024 2,937 3 View
Sample type: Corn leaves and stem Bean leaves and stem
22 June 2024 2,082 3 View
Hello everyone, As you can see from the graph, I initially observed a peak, but after the first scan, the peak started to diminish, and despite trying with a new solution, I couldn't achieve the...
10 May 2024 4,884 2 View
Respected All, Recently I have been started working in supercapacitor. I am completely new in the field of supercapacitors. I have performed the CV. The weight of the active materials I used was...
03 May 2024 5,940 0 View
We can have a pretty basic discussion about it. I am using Biologic SP-200 potentiostat.
24 April 2024 7,372 2 View
I was trying to do RRDE experiment using Gamry. I appiled 1.2 V vs Ag/AgCl at the ring and 0 to -0.65 V vs Ag/AgCl at disk . The potential at disk keep stuk at around 1 V and does not go over the...
19 March 2024 2,230 0 View
The system is comprised of a nitrate solution (just nitrate ions in distilled water), and Screen-printed electrodes (Carbon working and counter electrodes, and Ag reference electrode). The three...
18 March 2024 9,467 1 View