What is the conductivity and the optical reflection of metals and graphite?

06 June 2015 1 2K Report

Why metals usually have shinning surface and luster? Is there a connection between the optical reflection and the conductivity?

Ioannis Samaras

dear Zhen xu , there are many textbooks related to your question.

Optical reflection is only a very small part of such "measurement".

For a fast reading, see please, a nice link:

Plasmonics: Theory and Applications

http://physics.gsu.edu/stockman/data/Stockman_Chapter_Nanoplasmonics_From_Present%20_into_Future.pdf

Badges
Science topic

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

Why chloride turns into chlorine gas in a Downs cell?

I imagine the battery drives the graphite into a carbocation, then chloride is oxidized to donate the electron to the carbocation, but what pushes the lost electrons of chloride to be shared...

03 August 2024 5,384 0 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

How to build my own lab made four point probe set up?

Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...

30 July 2024 906 2 View

How to calculate conductivity using Electrochemical Impedance Spectroscopy's Nyquist plot?

Hello everyone, I am new to this characterization but watching videos on youtube I have already plotted a Nyquist plot (Z' and -Z'') and already fitted models on my material using Zsim. But now I...

29 July 2024 1,376 0 View

Provided that the shale conductivity termed here x increases with temperature, how could we compute it at reservoir temperature ?

one could use Waxman and Thomas (1974) work?

22 July 2024 6,637 0 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

How to convert magnetic conductivity from SI to lattice units?

I'm simulating a magnetohydrodynamic problem of blood flow using lattice Boltzmann method in lattice units and I need to convert the magnetic conductivity to lattice units. The physical value is...

07 July 2024 5,243 0 View

Graphene and graphene oxide as cancer factor?

Please, can any one inform us about risks of graphene and graphene oxide as a factor of cancer growth?

28 June 2024 6,815 4 View