Velayutham Ramasubbu

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Questions related from Velayutham Ramasubbu

How do i measure I-V curve ( at dark condition) for a DSSC . What is the importance of it ?

In Dye Sensitized Solar Cell (DSSC), many papers reported their I-V plot in both condition (Dark & under 1 sun illumination). How do we record I-V curve at dark condition. What is the...

05 December 2017 4,771 3 View

Instead of Brunauer, Emmet and Teller (BET) measurement, Can we measure surface area of Metal organic framework (MOF) with any other method ???

Am preparing Metal organic frameworks (MOFs). To characterize its surface area, we go for nitrogen adsorption-desorption by BET measurement.Can we measure surface area of MOF with any other method ???

24 February 2016 4,009 3 View

How do i record UV spectrum for polymer films ?

To record UV spectrum for any sample (solid, liquid, thin film, polymer), we need reference material. Suppose if we analyze solid sample, we use Barium sulphate as reference material. For liquid...

15 April 2015 9,841 3 View

While preparing MOF, sometimes vacuum drying is needed. Does the vacuum have any influence (low, medium, ultra vacuum) over MOFs surface area.?

I am preparing MOF. I have a doubt regarding vacuum drying. Does the use of vacuum (low, medium, ultra vacuum ) affect surface area of MOF or not?

05 March 2015 2,861 6 View