What is the surface charge on N719 or other dyes used in Dye-sensitized solar cells?

All the dye particles are either cationic, anionic or nonionic in nature. However most of the dyes are either cationic or anionic. How about dyes used for Dye sensitized solar cells like N719 or D719

09 October 2018 8,781 0 View

How to identify the graphene sheets are produced via chemical reduction or they are grown by CVD?

What indications and methods can be employed to identify or mark if the graphene nanosheets were chemically reduced by have hummers method synthesized GO or they were produced via chemical vapour...

09 October 2018 9,267 1 View

Solubility of PVdF polymer in acetonitrile

Hello, Can a PVdF polymer with average molecular weight of 107 kDa be easily dissolved in acetonitrile at room temperature?

06 July 2017 7,141 5 View

What is the science behind the de-aggregation of organic dye using deoxycholic acid (DCA)?

How does the DCA works to lessen the aggregation of organic and other dyes to be used in a dye sensitized solar cell. I want to understand its effect on the dye or interaction with the dye to...

11 December 2015 8,524 1 View

Can we observe functional groups of solid materials like fabric, through UV-Vis spectroscopy? Or we can do it only for solutions?

Thanks in advance for your replies.

03 April 2015 3,755 7 View

Can someone help me understand the peaks of Cyclic Voltammogram (CV) curve?

My major is not related to electrochemistry, however, I need to understand the electrocatalytic activity of my graphene coated material. I have a obtained a CV curve for my graphene materials (GO...

31 December 2014 8,802 14 View

How can I carry out activation of Pt as a catalyst in DSSCs?

We normally anneal drop coated or sputtered Pt (H2PtCl6) for its activation as catalyst in DSSC. The process is around 400 C for 20-30 min. Is there any other way by which Pt can be activated...

07 August 2014 2,179 4 View

Who can share their knowledge on the chemical reduction of copper (II) oxide aqueous solution to copper metal?

Is there a way to chemically reduce suspension or solution containing copper (II) oxide powder, back to copper metal. I know with Copper (II) oxide powder I can make copper sulfate, copper nitrate...

05 June 2014 9,990 9 View

Can someone tell me by which instrument we can measure surface charge of a material, like fabric?

I need to measure surface charge on my fabric sample.

01 February 2014 4,450 7 View

Can some one explain the charge on GO at pH 2?

I am trying to treat cotton fabric with GO solution and cotton fabric has negative charge on its surface. I have heard that GO also has negative charge so negative negative will repel. But I am...

01 February 2014 4,541 1 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

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02 March 2021 3,060 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View