Preservation of the donor-acceptor character of a carbazole-phenalenone dyad upon adsorption on Pt(111).

ABSTRACT: Donor-acceptor molecules are a subject of great attention due to their immense potential in molecular electronics and photovoltaics. Despite numerous extensive studies demonstrating their functionality in solution, the donor-acceptor character is usually lost upon adsorption on a conducting substrate. Here the concept of breaking the conjugation between the donor and acceptor unit by insertion of a bridge is used. Furthermore, the bridge introduces a kink into the dyad and thus, reduces the possibility of hybridization with the substrate. A donor-bridge-acceptor dyad composed of carbazole and phenalenone units joined through a flexible bridge is synthesized and deposited on a Pt(111) surface. Its electronic properties are investigated with a combination of low temperature scanning tunnelin

SUBMITTER: Ebeling R 

PROVIDER: S-EPMC9418732 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature