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Photodiode-like behavior of jelly dye-sensitized donor-acceptor dendrimers

Pires, R. ; Charas, A. ; Morgado, J. ; Casimiro, TC ; Bonifácio, V.B.

Journal of Applied Polymer Science Vol. 137, Nº -, pp. 48635 - 9 pages, November, 2019.

ISSN (print): 0021-8995
ISSN (online): 1097-4628

Scimago Journal Ranking: 0,54 (in 2019)

Digital Object Identifier: 10.1002/app.48635

Hybrid photodiodes (HPD) systems are on the rise. The growing interest on these devices is mainly due to their power in
image sensing and bioengineering solutions. In this work, a new class of donor-acceptor dendrimers was synthesized and incorporated,
along with a ruthenium sensitizer dye, into low cost devices comprised of one single layer of a biocompatible matrix (agarose). Exploring
different electrodes, low current devices with a counter-electrode dependent response have been successfully assembled at room temperature.
Using a stainless steel electrode, sensitized donor-acceptor dendrimers provide photodiode-like systems having nA dark currents.