Naphthalene bisimides asymmetrically and symmetrically N-substituted with triarylamine - comparison of spectroscopic, electrochemical, electronic and self-assembly properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F13%3A00388199" target="_blank" >RIV/61389013:_____/13:00388199 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/C2CP43505E" target="_blank" >http://dx.doi.org/10.1039/C2CP43505E</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C2CP43505E" target="_blank" >10.1039/C2CP43505E</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Naphthalene bisimides asymmetrically and symmetrically N-substituted with triarylamine - comparison of spectroscopic, electrochemical, electronic and self-assembly properties

Popis výsledku v původním jazyce

Two semiconducting naphthalene bisimides were comparatively studied: NBI?(TAA)2, symmetrically N-substituted with triaryl amine and asymmetric NBI?TAA?Oc with triaryl amine and octyl N-substituents. Both compounds show very similar spectroscopic and redox properties but differ in their supramolecular organization. As evidenced by STM, in monolayers on HOPG they form ordered 2D structures, however of different packing patterns. NBI?(TAA)2 does not form ordered 3D structures, yielding amorphous thin filmswhereas films of NBI?TAA?Oc are highly crystalline. DFT calculations predict the ionization potential (IP) of 5.22 eV and 5.18 eV for NBI?TAA?Oc and NBI?(TAA)2, respectively, as well as the electron affinity values (EA) of 3.25 eV and 3.22 eV. These results are consistent with the cyclic voltammetry data which yield similar values of IP (5.20 eV and 5.19 eV) and somehow different values of EA (3.80 eV and 3.83 eV). As judged from these data, both semiconductors should exhibit ambipolar

Název v anglickém jazyce

Naphthalene bisimides asymmetrically and symmetrically N-substituted with triarylamine - comparison of spectroscopic, electrochemical, electronic and self-assembly properties

Popis výsledku anglicky

Two semiconducting naphthalene bisimides were comparatively studied: NBI?(TAA)2, symmetrically N-substituted with triaryl amine and asymmetric NBI?TAA?Oc with triaryl amine and octyl N-substituents. Both compounds show very similar spectroscopic and redox properties but differ in their supramolecular organization. As evidenced by STM, in monolayers on HOPG they form ordered 2D structures, however of different packing patterns. NBI?(TAA)2 does not form ordered 3D structures, yielding amorphous thin filmswhereas films of NBI?TAA?Oc are highly crystalline. DFT calculations predict the ionization potential (IP) of 5.22 eV and 5.18 eV for NBI?TAA?Oc and NBI?(TAA)2, respectively, as well as the electron affinity values (EA) of 3.25 eV and 3.22 eV. These results are consistent with the cyclic voltammetry data which yield similar values of IP (5.20 eV and 5.19 eV) and somehow different values of EA (3.80 eV and 3.83 eV). As judged from these data, both semiconductors should exhibit ambipolar

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1578-1587

Kód UT WoS článku

000313565300028

EID výsledku v databázi Scopus

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