Valeria Saavedra

8 Questions 12 Answers 0 Followers

Questions related from Valeria Saavedra

Is there a pigment that can be used to dye PMMA in anisole?

I am looking for an organic dye, soluble in anisole to be able to get coloured PMMA films

05 May 2019 6,325 1 View

Is the structure of deposited CdS nanoparticles affected by heating at high temperatures?

Will the structure of CdS nanoparticles deposited on a substrate be affected if the substrate is heated to temperatures up to 450-500 Celsius? Or will the structure remain as it is?

09 September 2015 8,400 3 View

When measuring electron dynamics in Dye/semiconductor interfaces by transient absorption what are the effects of high absorption from the sample?

I have heard many times that the absorbance of the sample must be kept low when measuring electron dynamics in dye-semiconductor interfaces by transient absorption spectroscopy. Some say between...

05 May 2015 6,398 3 View

Is it normal for the dye SQ2 to loose its colour on TiO2 when taking it out from the dye bath?

When preparing sensitized TiO2 with solaronix SQ2 dye, the films loose their colour completly and irreversibly if left on ambient light and air conditions, or if immersed in a solution of LiClO4...

12 December 2014 4,670 9 View

Does anyone knows an easy method to prepare a paste for screen-printing of SnO2 thin films of ~6µM thickness?

I want to deposit a thin layer of SnO2 on a glass substrate by doctor-blade technique, just like we do for standard dye-sensitized solar cells. I couldn´t find any commercial SnO2 paste like TiO2....

07 July 2014 2,751 9 View

Does a highly charged FTO/glass electrode absorb light in the long wavelength region?

If a lot of electrons are accumulated in a conducting glass electrode (pasivated with fluorine dopped tin oxide), would the optical absorbance of the material increase at long wavelenghts...

07 July 2014 3,605 3 View

What is the best book on quantum mechanics that is understandable/applied for chemists/chemistry?

04 April 2014 1,935 19 View

How to reduce the scattering in a pump-probe measurement (transient absorption)?

I am interested in measuring the recombination times in TiO2 dye sensitized thin films. I study this by measuring the transient absorption (either the recovery of the dye bleach or the decay of...

02 February 2014 3,705 9 View