Quantum phase transitions (QPTs) in low-dimensional materials, like 2D disordered systems, are a key focus in condensed matter physics due to their sensitivity to magnetic, topological, and superconducting orders. These transitions occur at absolute zero (T=0) when varying a parameter in the system’s Hamiltonian, providing insights into competing quantum orders. A prominent example is the Superconductor-to-Insulator Transition (SIT) in 2D systems, where superconductivity competes with quantum interference and Coulomb interactions. Despite extensive research, the SIT remains complex, with hints of exotic phases near the transition. Studies suggest phenomena like Cooper pairing in the insulating phase and possible preformed pairs, indicating a Bosonic insulator with a pseudogap. There’s also debate about an anomalous Boson metal phase, challenging the belief that a 2D metallic state is impossible. This project will experimentally explore thin YxSi1-x films to study electron-phonon decoupling under large electric fields near the SIT at low temperatures. It may lead to a thesis on quantum phase transitions in disordered systems, potentially extending to detection applications in astroparticle physics.