Which grade of HOPG should I use for work-function calibration?

I want to calibrate the work-function of our Kelvin probe using HOPG as a reference sample. For the commonly used SPI HOPG, there are three grades, SPI-1, SPI-2 and SPI-3. Is there any difference...

03 April 2019 9,761 4 View

How to calibrate the Kelvin probe operated in air to determine work-function value?

Usually HOPG is used for calibrating Kelvin probe tip work-function. However I found if operated in the air, HOPG surface will quickly adsorb air species and the measured contact potential drifts...

03 April 2019 3,829 4 View

What is the record-high mobility of organic field effect transistors to date?

I wonder if anyone has kept a record of the reported mobility of organic field effect transistors. And what is the highest value of hole and electron mobilities to date, for small molecule and...

02 March 2017 3,265 1 View

How to interpret the UPS spectrum of quantum dots?

09 October 2016 250 4 View

How to substitute the oleic acid ligands on quantum dots?

Most core/shell structured quantum dots (e.g. CdSe/CdZnS) today employ oleic acids as the passivating ligands. But can they be easily substituted for other types of organic ligands? Is there any...

09 October 2016 2,520 2 View

How can I measure the conduction/valence band edges of quantum dots?

For a core-shell quantum dot, the band edges of the core and shell are different. How can I measure the energy levels?

08 September 2016 5,679 3 View

Can one use a common spray gun to spraycoat thin films?

I want to spray-coat thin films from organic semiconducting or metallic inks. Can I use a spray gun for painting cars for this purpose? Since I'd like to start from spraying small-size devices...

07 August 2016 2,998 4 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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

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