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

Fabrication and design difference between a conventional DSSC and low intensity DSSC?

I have read that DSSC works good in low intensity light, but is there any fabrication or design difference between a conventional DSSC and low intensity DSSC? Is the low temperature sintering...

09 October 2018 9,490 2 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 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

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

How to construct different filler shape in MD simulations?

Is there any way to construct different initial filler shapes like triangle, square, rectangle, pillar, and tube in any simulation software.

20 February 2021 1,750 1 View

Blast analysis of RC,UHPC slabs using material model *MAT_72R3 in LS-DYNA?

20 February 2021 5,984 3 View

How can I measure the surface interaction or surface interfacial chemistry between polishing abrasives and upper surface of substrate ?

I am working on polishing abrasives. I need to do few characterizations ? which can provide the on time surface chemistry of substrate with polishing abrasive during optical polishing. I would...

18 February 2021 5,319 3 View

Despite single-cell RNA, how can I characterize a new cell subtype/phenotype?

A new cell subtype was found out only during regeneration phases after a cuprizone-induced demyelination model. How can I characterize this cell? It is important to highlight that was already...

13 February 2021 1,245 1 View