Intramolecular charge separation in spirobifluorene-based donor-acceptor compounds adsorbed on Au and indium tin oxide electrodes

Surface photovoltage (SPV) measurements were performed with a Kelvin-probe in spirobifluorene-based donor (diphenylamine)-acceptor (dicyano or cyanoacrylic acid moieties) compounds adsorbed from highly diluted solutions onto Au and indium tin oxide electrode surfaces. Strong intramolecular charge se...

Full description

Bibliographic Details
Authors: Heredia, Daniel Alejandro, Otero, Luis Alberto, Gervaldo, Miguel Andres, Fungo, Fernando Gabriel, Dittrich, Thomas, Lin, Chih-Yen, Chi, Liang-Chen, Fang, Fu Chuan, Wong, Ken Tsung
Format: article
Status:Published version
Publication Date:2013
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/131346
Online Access:http://hdl.handle.net/11336/131346
Access Level:Open access
Keyword:CHARGE SEPARATION
KEYWORDS
SPIROBIFLUORENE
SURFACE PHOTOVOLTAGE
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
Description
Summary:Surface photovoltage (SPV) measurements were performed with a Kelvin-probe in spirobifluorene-based donor (diphenylamine)-acceptor (dicyano or cyanoacrylic acid moieties) compounds adsorbed from highly diluted solutions onto Au and indium tin oxide electrode surfaces. Strong intramolecular charge separation (negative SPV signals up to more than 0.1 V) due to directed molecule adsorption was observed only for spirobifluorene donor-acceptor compounds with carboxylic acid moiety. SPV signals and onset energies of electronic transitions depended on ambience conditions.

Similar Items