Modeling of the Chemical Vapor Deposition Synthesis of Phosphorene: A Molecular Dynamic Study
TALONPA TCHOFFO Djuric Brice,
University Mohammed VI Polytechnic (Institute of Applied Physics)
IAP Physics Seminar Series will occur on Tuesday 29 October, at 11:15 at the UM6P campus (Ryad 8, 1st floor).
Abstract:
Phosphorene, a two-dimensional (2D) layered material made of sp³-hybridized phosphorus atoms, exhibits remarkable properties such as high charge carrier mobility, a tunable band gap, a large ON/OFF ratio, and noteworthy optical and mechanical characteristics. These features position phosphorene as a promising candidate for a wide range of applications, including electronics, optoelectronics, and sensors. However, the challenge of achieving large-scale, defect-free, and uniform growth has hindered its industrial adoption. Various techniques have been developed to synthesize high-quality 2D material films, with chemical vapor deposition (CVD) being one of the most effective. However, CVD optimization is complex due to the numerous variables involved, such as temperature, pressure, carrier gases, and precursor concentration. Molecular dynamics simulations offer a valuable tool for fine-tuning CVD parameters and gaining insights into the growth mechanism. In this study, we demonstrate that substrate orientation plays a crucial role in controlling the synthesis of different phosphorene allotropes, and we highlight the importance of phosphorus pentamers (P₅) as key precursors in the synthesis process.
Biography:
Mr. TALONPA TCHOFFO Djuric Brice holds a Master of Science in condensed matter physics from the University of Dschang, Cameroon, in 2021. Before that, he obtained a Higher Teacher’s Training College Diploma in Physics in 2018. Since January 2022, he is a Ph.D. Student at the UM6P Institute of Applied Physics research program.
Localization: Ryad 8, 1st Floor.