14 Questions 61 Answers 0 Followers
Questions related from Hammad Cheema
TiO2 nanoparticles are white itself, but what is the cause of transparency after sintering?
10 December 2018 3,388 3 View
We are seeing reports of such kind of recombination for organic sensitizer, but I was wondering if something similar exists or being studied for Ru (II) sensitizers?
26 September 2016 7,679 3 View
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...
09 May 2016 686 10 View
Since the distribution of these states determines the charge capacity followed by photovoltage and photocurrent in TiO2 based devices such as dye-sensitized solar cells?
13 April 2016 3,783 3 View
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...
27 October 2015 9,460 1 View
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...
11 August 2015 9,781 10 View
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,...
10 June 2015 6,248 1 View
I had made some Perovskite solar cells, current up to 16mA/cm2 and Voc of 0.9V was achieved but FF was around 26 which was killing the efficiency, and in different cells that is consistent? can...
22 May 2015 6,445 15 View
Some publications now report effect of dry air storage over night for efficient results? such as Solar EnergyMaterials&SolarCells134(2015)60–63, any experience?
18 May 2015 693 4 View
I was trying to do two step sequential deposition, and even for stirring at 70C for overnight it do not dissolve completely. Eventually, after spin coating i see grains of PbI2 which are obvious...
01 May 2015 7,229 11 View
For example, would photo-induced electron transfer be favored in more polar solvents compared to less polar?
06 April 2015 6,044 6 View
In order to determine the free enthalpy of electron transfer between donor and acceptor?
24 March 2015 2,411 1 View
How we can mask?
03 March 2015 4,013 17 View
First I would like to check the reliability of the method by measuring standard against standard, and I do have anthracene and 9,10 dicyanoanthracene in the lab.
19 February 2015 5,301 2 View
