RT Journal Article
T1 CsPbBr3-based photoanode prepared by single-step Chemical vapor deposition of tunable thickness perovskite films
A1 Sosa Costa, José Raul
A1 Fernández Izquierdo, Leunam
A1 del Río, Rodrigo
A1 Navarrete-Astorga, Elena
A1 Leinen, Dietmar
A1 Hevia Zamora, Samuel Alejandro
K1 Deposición química de vapores
AB Cesium Lead Bromide (CsPbBr3) perovskite films have gained significant attention in photoelectrochemistry due to their promising properties. However, their widespread application necessitates scalable processing methods to produce high-quality films. Current techniques often involve post-synthesis steps to achieve desirable crystalline films or surface coverage for optimal performance. This research performed a single-step Chemical Vapor Deposition (CVD) approach to grow high-quality CsPbBr3 films. This methodology offers precise control over film thickness and grain orientation, crucial for optimizing photoelectrochemical response. The procedure simplifies fabrication by bypassing annealing or toxic solvent excess and growing films directly from CsPbBr3 crystals. Film thickness was controlled by adjusting growth time and precursor mass parameters to examine the photoelectrochemical performance across thicknesses ranging from 0.6 µm to 2.5 µm. Optimal results were achieved with dense, compact films 1.5 µm thick, which exhibited oriented grains along the (121) plane. Optical, structural, and morphological analyses confirmed a predominantly pure orthorhombic phase, although slight impurities were noted in thinner films. The 1.5 µm films showed a four-hour stable photocurrent of 6.2 mA/cm² at 1.23 V versus reversible hydrogen electrode (RHE) under simulated solar conditions, underscoring their potential in advancing perovskite-based electrodes for efficient photoelectrochemical solar fuel generation.
PB Elsevier
YR 2024
FD 2024-09-02
LK https://hdl.handle.net/10630/38366
UL https://hdl.handle.net/10630/38366
LA eng
NO Applied Surface Science 678 (2024) 161049
NO https://openpolicyfinder.jisc.ac.uk/id/publication/11418
NO Agencia Nacional de Investigación y Desarrollo (ANID) de ChileMinisterio de Ciencia, Innovación y Universidades de EspañaSpain MICINN/PID2020-117832RB-100Chile Fondecyt/#3210399Chile Fondecyt/#1201589Chile Fondecyt/#1241880Chile FONDEQUIP/EQM150101Chile FONDEQUIP/EQM170087
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026