What kind of dopants or host materials are required to blueshift a green-emitting organic material?

I want to dope my green-emitting materials in order to blueshift them for their use in electroluminescent devices. Can anyone suggest what kind of dopant/host materials are required, or any...

09 October 2013 8,591 7 View

What are the possible reasons for the red shift in electroluminescence when compared to fluoroscence of a material?

A material having its fluoroscence in the blue region (both solution form and thin film form) is red-shift to green region when it is used as active material in LED. What might be the possible...

09 October 2013 3,064 20 View

How to convert lux to candela per square meter?

I have illuminance values using a lux meter. I want to convert the values to candela per square meter in order to calculate efficiency.

08 September 2013 5,668 2 View

Can anyone suggest methods to determine the mobility of organic semiconductors?

I want to determine the mobility of organic semiconducting materials. The materials are fluorescent and used as active materials for organic electroluminescent devices. What is the best method and...

07 August 2013 7,230 20 View

How to avoid pinholes while coating ZnO thin films by spin coating?

While coating ZnO thin films on glass substrates using spin coating technique, pin holes are formed. Please suggest how to get a pin-hole free thin films.

07 August 2013 7,699 7 View

Can Organic LEDs replace Inorganic LEDs in lighting applications; and LCDs in display technology?

Latest developments in Organic LED (OLED) research has been extraordinary. Many prototypes have been demonstrated and small OLED displays have been used in small screen devices. But seeing the...

05 June 2013 2,187 16 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 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

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View