Programme

P.14 -- Poster, ANSWCCMS-2023

Date: Tuesday, 7 November 2023

Time: 13:00 - 14:30

In silico charge transport in an organic semiconductor-implanted retina

Bayang Irene Joi E (1), Egwolf Bernhard (1), Villegas Vladimir P (1), Lamento Em-Em B (2)

(1) Department of Mathematics and Physics, University of Santo Tomas, España Blvd 1008 Manila; (2)Philippine Eye Research Institute-National Institutes of Health-University of the Philippines Manila, 5/F Sentro Oftalmologico Jose Rizal, Philippine General Hospital Compound, University of the Philippines, Ermita 1000 Manila

Optoelectronic properties, such as light-induced charge transport, allow organic semiconductors to mimic a functional photoreceptor in a mammalian retina. The Ising spin chain, a quantum model for interacting magnetic particles, is a useful tool to describe the dynamics of nerve impulses. On the other hand, the Anderson-Hubbard model, the mathematical representation of a lattice with site-dependent energy, describes the physics of an organic semiconductor complex. With these, the optimization of the charge conductivity in a deficient retinal system through the aid of an organic semiconductor chip can be investigated using the open quantum system formalism. In this study, it is shown that increasing the two-particle interaction increases the value of charge conductivity at a particular temperature. The enhancement of charge transport can then mimic artificial vision in a blind retina.

Presenter: Lamento Barbarona Em-Em