Univerzita PardubiceFakulta chemicko- technologická

Univerzita Pardubice

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English

Publikace detail

Principles of HOMO-LUMO and optical band gaps tuning in push-pull molecules.

Autoři: Bureš Filip | Kulhánek Jiří | Ludwig Miroslav

Rok: 2014

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Principles of HOMO-LUMO and optical band gaps tuning in push-pull molecules.	Organic molecules based on π-conjugated scaffolds are currently tremendously investigated organic materials. These molecules are widely found in (opto)electronic devices such as nonlinear optical (NLO) materials and memories, organic light-emitting diodes (OLEDs), dye-sensitizing solar cells (DSSCs), semiconductors, switches and many others. Moreover, in a π-conjugated system end-capped with electron donors D and electron acceptors A, intramolecular charge-transfer (ICT) takes place and D-π-A chromophores possess dipolar character with distinct optical and electrochemical properties. As a part of our continuing research, we have developed several series of such organic push-pull D-π-A molecules and have thoroughly investigated their structure-property relationships. The HOMO-LUMO and optical band gaps can easily be tuned by the modification of the electronic nature of the appended donors and acceptors as well as variation of the π-linker. Brief synthesis of several representative derivatives and fundamental principles of tailoring of their electronic properties will be discussed.	NLO, push-pull system, chromophore, HOMO-LUMO,