Browsing by Author "Oliveros Garavito, David"
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Item Diseño, síntesis y estudio de las propiedades optoelectrónicas de un material transportador de huecos basado en fenotiazina y difenilamina para celdas fotovoltaicas de Perovskita(Universidad Santiago de Cali, 2025-12-12) Oliveros Garavito, David; Illicachi Romero, Luis Alberto (Director); Insuasty Chamorro, Braulio Alberto (Director)The rapid growth of the world's population poses a challenge for energy production, which is still dependent on non-renewable sources such as natural gas and coal, the main contributors to the increase in greenhouse gases and other environmental impacts. In this context, renewable sources, particularly solar energy, are presented as a sustainable alternative due to their low cost, stability, and high efficiency, with perovskite solar cells standing out with efficiencies close to 25%. In this work, a new hole transport material derived from phenothiazine and diphenylamine was designed using Buchwald-Hartwig coupling, with yields exceeding 40%. The compounds obtained were characterized by ¹H NMR, mass spectrometry, and X-ray diffraction. The material showed maximum absorption at 300 nm and emission at 453 nm in THF, as well as a forbidden optical band of 2.943 eV, indicating a possible application in perovskite solar cells.