what range of values would be expected for conjugated polymer band gaps?

Question

Question

what range of values would be expected for conjugated polymer band gaps?

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Conjugated polymers are organic macro molecules that are characterised by a backbone chain of alternating double- and single-bonds. Their overlapping p-orbitals create a system of delocalised π-electrons, which can result in interesting and useful optical and electronic properties.

The electronic structure was reported previously with direct band gaps of 2.34 eV (LDA),2.40 eV (PW91), 2.48 eV (PW91),3.2 eV (HSE06) and 3.91 eV (B3LYP).

Add a comment

Answer 2

Similar Homework Help Questions

4. [5%) What are the general expected band gaps Egap for conductors, semiconductors and insulators.

4. [5%) What are the general expected band gaps Egap for conductors, semiconductors and insulators.
Band Gaps The energy gaps between the valence and conduction bands are called band gaps. For...

Band Gaps The energy gaps between the valence and conduction bands are called band gaps. For silicon, the band gap is 1.1eV; for fused silica glass, it is 9.3eV. Part A What is the wavelength λ of a photon that has energy 1.1eV? Express your answer in nanometers to two significant figures.
4. What monomer would you start with to make the polymer shown? Would the polymer be...

4. What monomer would you start with to make the polymer shown? Would the polymer be made more effectively using a cationic or an anionic polymerization? CN CN CN

3. a) Draw the expected polymer that would form from the two monomer units below (draw...

3. a) Draw the expected polymer that would form from the two monomer units below (draw the two repeating units): + H₂N - NH2
How can one tell this molecule is fully conjugated? What about the carbon in the middle? jolecule is expected to be...

How can one tell this molecule is fully conjugated? What about the carbon in the middle? jolecule is expected to be nonaromatic, aron or antiaromatic Planar Completely Conjugated #e-in #e-in p bonds orbitals (bonding) (nonbonding) Total Nonaromat ne Aromatic Antiaroma 10 10 aromatic
what accounts for the wide range of elastic modulus tension values for the materials? Elastic Modulus:...

what accounts for the wide range of elastic modulus tension values for the materials? Elastic Modulus: Tension (GPa) (Linear / Log) 1000 Elastic Modulus: Tension (GPa) Edit Elastic Modulus: Tension (GPa) O COXO + Metal 00 OOOXO + Polymer OO DODO + Ceramic + Composte • 0200 + Advanced Max 950 950 • 000 Low High

What range of resistance values would you expect to measure if a resistor had bands of...

What range of resistance values would you expect to measure if a resistor had bands of brown-black-green-gold?
Question A range of values within which the population parameter is expected to occur is called...

Question A range of values within which the population parameter is expected to occur is called a AJ Nnan 2 of
is the range of gain values expected from such a circuit? An inverting op amp circuit...

is the range of gain values expected from such a circuit? An inverting op amp circuit is fabricated with the resistors R, and R2 having x% tolerance (that is, the value of each resistance can deviate from the nominal value by as much as x%). What is the tolerance on the realized closed-loop gain? As- sume the op amp to be ideal. If the nominal closed-loop gain is -100 V/V and x = 5, what

A Draw the expected structure of the polymer repeat unit given the following monomer. B. Indicate...

A Draw the expected structure of the polymer repeat unit given the following monomer. B. Indicate whether free radical or condensation polymerization would be most appropriate. HH III HO-CR HO-CH2 CH2-CH2-OH

what range of values would be expected for conjugated polymer band gaps?

Homework Answers

Add Answer to:
what range of values would be expected for conjugated polymer band gaps?

Post as a guest

Earn Coins

4. [5%) What are the general expected band gaps Egap for conductors, semiconductors and insulators.

Band Gaps The energy gaps between the valence and conduction bands are called band gaps. For...

4. What monomer would you start with to make the polymer shown? Would the polymer be...

3. a) Draw the expected polymer that would form from the two monomer units below (draw...

How can one tell this molecule is fully conjugated? What about the carbon in the middle? jolecule is expected to be...

what accounts for the wide range of elastic modulus tension values for the materials? Elastic Modulus:...

What range of resistance values would you expect to measure if a resistor had bands of...

Question A range of values within which the population parameter is expected to occur is called...

is the range of gain values expected from such a circuit? An inverting op amp circuit...

A Draw the expected structure of the polymer repeat unit given the following monomer. B. Indicate...

what range of values would be expected for conjugated polymer band gaps?

Homework Answers

Add Answer to: what range of values would be expected for conjugated polymer band gaps?

Post as a guest

Earn Coins

Add Answer to:
what range of values would be expected for conjugated polymer band gaps?