If I make a transducer with Piezo-polymer(stacked Top&bottom side with Au), is there any needed factor to electrode design?

06 June 2018 0 716 Report

Actually what I needed is d33 thickness vibration mode.

I hope it can make a Ultrasound with PVDF-TrFE.

Badges
Science topic

More Yeonghun Yun's questions See All

How to define anode and cathode in 2 electrode system?

I want to use Metal oxide for cathode, carbon for anode. In that case, is that correct to connect cathode - Working electrode, Anode - Reference&Counter electrode ?

07 August 2019 5,161 3 View

How to measure Voltage window of Supercapacitor?

I want to make a Asymmetric supercapacitor. So it can have more Working voltage limit than Symmetric supercapacitor. But I wonder there will be electrolyte decomposion, and how to conclude the...

07 August 2019 8,222 5 View

How to measure electrode capacitance?

I will use Carbon material for anode and Metal oxide for cathode with In-plane structure. In that case, Can i measure each of anode, cathode capacitance and all of supercapacitor's capacitance?

07 August 2019 8,436 4 View

How to analyze transparency PVDF-TrFE film?

Actually I'm using a PVDF-TrFE(TrFE 30%) powder with solvent(DMF or MEK). My goal is to make over 240micron meter PVDF-TrFE films. Before that process, I need to analyze the films figure. With...

20 August 2018 2,038 2 View

How to analyze transparency PVDF-TrFE film?

Actually I'm using a PVDF-TrFE(TrFE 30%) powder with solvent(DMF or MEK). My goal is to make over 240micron meter PVDF-TrFE films. Before that process, I need to analyze the films figure. With...

07 August 2018 3,916 2 View

Thick P[VDF-TrFE] film is possible?

Hello all, I'm working on making a specific central frequency by PVDF-TrFE films(piezo-electric material). By the way, for making thicker than 200 micron of PVDF-TrFE films, there are many...

06 July 2018 7,917 0 View

How many time is needed to vacuum degassing?

Hello. I have a question about vacuum degassing. I want to eliminate the micro-bubbles before evaporating the solution with the heat(P[VDF-TrFE]+MEK or DMF 10wt%). The size of the solution will be...

06 July 2018 871 3 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Binder for ZnO nanoparticles in graphite paste electrode?

I have been using paraffin, but the deposited ZnO still detach from electrode. What is the best binder to modify graphite paste electrode with ZnO nanoparticles?

03 August 2024 4,624 3 View

How to find a reaction is reversible or irreversible in CV? How to know the number of electrons transfer?

My screen printed electrode CV is given here. For Nerstean one electron reaction the delta E value should be close to 57 mV and ration of Ic/Ia should be close to 1. I did CV of my screen printed...

30 July 2024 4,671 3 View

How to check pH of a high strength hydrogel?

We are working on biopolymeric hydrogels. Our system is highly viscous and sticky, and the gel formed are high in strength. We are unable to use pH electrode and pH strip. Please suggest an easy...

30 July 2024 942 2 View

While doing Chronoamperometry, when the light is turned off, why the current is not decreasing sharply?

Here, I have used Ag/AgCl as reference electrode and 0.5M KOH.

29 July 2024 4,538 3 View

Why semicircle of nyquist plot is not complete?

While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...

26 July 2024 7,542 4 View

Why do these abnormal charge/discharge curves of coin cell batteries appear?

As shown in the figures, there are several abnormal charge/discharge curves.Each of them may have different problems. I am curious why these situations appeared differently?There are a lot of...

24 July 2024 6,930 1 View

What binder would be the best choice to modify glassy carbon electrode with a 2D Material like Graphene or MXene?

I am trying to drop cast 2D Materials on Glassy Carbon Electrode for Cyclic voltametry and EIS purpose. What would be best binders to use?

23 July 2024 5,776 2 View

I obtain two plateu instead of one in LFP cathode assembled with graphite anode in 1M LiTFSI in DOL/DME, what does this mean?

I have attached the charging curve from the battery tester for review. I need help on what is happening

21 July 2024 6,898 2 View

I am working on III-V based tandem solar cells.Can anyone explain that solar cells work under forward or reverse biased conditions?

I want to know that n-doped side of solar cell is connected with positive or negative electrode.

20 July 2024 1,348 2 View