Chemistry

Organic light emitting diodes

Organic light emitting diodes



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Practice exercises

task

Which of the following materials is suitable as a cathode material for organic light-emitting diodes?

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correct

not correct

partly correct

This is the correct answer

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task

Which of the following statements about OLEDs are true?

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correct

not correct

partly correct

This is the correct answer

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task

Suitable hole transport materials are materials with ionization potential and electron affinity that are able to form reversibly.

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task

When an electron is recombined with a defect electron ("hole"), a formally uncharged one is created, which passes into the ground state through light emission. (Please note that it is case-sensitive.)

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