Electrical and optical properties of organic light-emitting diodes with rhenium(I) complexes using DC and AC methods

Autor(es)

Goncalves, Marcia R. ^[1] ; Benvenho, Adriano R. V. ^[1] ; Frin, Karina P. M. ^[1]

Afiliação do(s) autor(es)

^[1] Fed Univ ABC UFABC, Ave Estados 5001, BR-09210170 Santo Andre, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Optical Materials; v. 94, p. 206-212, AUG 2019.
• Citações Web of Science: 0

Resumo

Four rhenium(I) tricarbonyl complexes with 1,10-phenanthroline and derivative bearing electron-donating CH3 and OCH3 substituents were doped into host material poly (9-vinylcarbazole) (PVK) with a mass ratio of 8% as the emissive layer in organic light-emitting diodes (OLEDs). All complexes showed photoluminescence in the solution and embedded into a PVK matrix (lambda(max)similar to 520-550 nm). The comparison with the bare PVK emission and the compound/PVK film shows that the emission of the polymer was quenched through an energy transfer process from PVK to the dopant. The electrical properties of the devices with FTO/PEDOT:PSS/Complex:PVK/Al architecture were investigated using the DC method by curves of current density-voltage and the AC method as admittance spectroscopy, which showed that the behavior of the devices is controlled by charge carrier injection rather than bulk transport. (AU)

• Processo FAPESP: 17/18063-0 - Avaliação de compostos luminescentes de Re(I) em bioimagem e/ou como agentes antitumorais
• Beneficiário: Karina Passalacqua Morelli Frin
• Modalidade de apoio: Auxílio à Pesquisa - Regular