Infrared detectors based on graphene lattice: an environmental dependent approach

Abstract The article discusses the development of an infrared detector using a graphene lattice, focusing on how environmental temperature and external voltage affect its electrical conductivity. The study models environmental temperature as a phonon bath and uses random matrix theory and quantum chaos to analyze the impact of impurities and structural defects. Impurities and defects in the graphene lattice significantly impact both the multifractal dimension and conductivity. The applied external voltage increases the spread of the multifractal dimension, indicating a tendency toward localization at higher voltages. Additionally, the multifractal dimension narrows for the metal state and converges to a single point for localized states. The research highlights the importance of studying these factors to understand the conductivity phase and the ability to detect infrared photons. The findings suggest that changes in electrical current at specific bias voltages can be used to detect infrared photons, with a graphene lattice containing boron impurities operating effectively at room temperature.