Saurabh Chauhan

7 Questions 17 Answers 0 Followers

Questions related from Saurabh Chauhan

How do I avoid scattering while collecting time-resolved photoluminescence (TRPL) spectra of thin films of fluorophores on glass substrate?

I am using time correlated single photon counting (TCSPC) to collect TRPL spectra of quantum dots (QDs). Taking TRPL spectra of solutions is pretty easy in the sense that the excitation passes...

21 January 2016 7,691 0 View

How is diffusion length in organic-inorganic lead halide solar cells calculated?

After reading the first few articles ( stranks et. al and xing et. al), I understood that they use one dimensional diffusion model to fit the carrier population decay rate as, dn/dt = D d2n/dx2 -k...

08 October 2015 5,589 1 View

Can somebody help with steady state emission data of CdSe-QDs+MO2 (M=Ti or Zr) solutions?

I am doing some control experiments with CdSe QDs-MO2 (M=Ti or Zr) colloidal solutions. According to literature, I should see lesser quenching of emission with ZrO2 as compared to TiO2 as the band...

05 February 2015 1,405 0 View

How can I measure the longer fluorescence lifetime component of quantum dots using TCSPC?

Hello, I am using a Becker and Hickl Tau130 TCSPC system to calculate fluorescence lifetimes of CdSe quantum dots. With me early measurements I have observed that QDs show multi-exponential decay...

24 September 2014 4,713 12 View

Can somebody suggest an ultra short fluorescence lifetime standard which absorbs light at 440 nm?

I am using a Beckr and Hickl Tau 130 TCSPC setup for fluorescence lifetime measurement of different fluorophores. For excitation, I am using a pulsed laser (440 nm). For now, I am using...

27 August 2014 8,505 4 View

Can somebody suggest a standard data analysis software package for time resolved fluorescence experiments for calculation of lifetimes?

I am using a Becker and Hickl Tau 130 - single time correlated photon counting (TCSPC) instrumentation to collect data. Thanks!

16 July 2014 3,936 11 View

Can anyone help with measuring IRF (instrument response function) for fluorescence lifetime experiment by TCSPC.

I have been using water to scatter light for measuring IRF of my TCSPC setup. I have also try to use paper. But when I was searching online, I saw that people generally use colloidal silica/ ludox...

09 June 2014 7,681 11 View