Understanding the photo-electrochemical mechanisms that determine the performance of light-emitting devices based on low-cost semiconductors
Rafael Sánchez a
a The Research Institute of Advanced Materials at the University Jaume I, Avinguda de Vicent Sos Baynat, s/n, Castelló de la Plana, Spain
Proceedings of International Conference on Emerging Light Emitting Materials (EMLEM22)
Aspects of Emergent Light Emitters:
Limasol, Cyprus, 2022 October 3rd - 5th
Organizers: Maksym Kovalenko, Maryna Bodnarchuk and Grigorios Itskos
Oral, Rafael Sánchez, presentation 018
DOI: https://doi.org/10.29363/nanoge.emlem.2022.018
Publication date: 15th July 2022

Nowadays, one of the most urgent societal challenges is focused on the progressive reduction of the global energetic consumption and pollution. Considering that lighting accounts for the 15 percent of the global electricity consumption and 5 percent of the worldwide greenhouse gas emission, new technological strategies are required in order to tackle and revert the current energetic troublesome. To reach that goals, not only the development of new materials and light-emitting technologies are required, but also a complete understanding of their working principles and mechanisms involved in the charge-to-photon conversion is a mandatory field. In this talk, I will discuss about the performance of a series of light-emitting diodes (LEDs) based on different semiconductors, e.g. lead-based and lead-free halide perovskites, II-VI and IV-VI quantum dots (QDs), fabricated through different approaches aimed at improving their performance and/or inducing synergies between the light-active materials. In addition, I will show the experimental tools and techniques employed to elucidate the photo-electrochemical mechanisms behind their functioning, which in turn determine their efficiency, brightness, durability and other relevant parameters.

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