MODELLING AND SIMULATION OF PLASMA-ASSISTED VERTICALLY- ALIGNED CARBON NANOTUBES ARRAY BASED SOALR CELLS

Abstract

Our work investigates the use of Carbon Nanotube (CNT) arrays with varying radii and lengths, synthesized via the Plasma-Enhanced Chemical Vapor Deposition (PECVD) method, as absorber layers in solar cells. CNTs with different geometric properties were systematically analyzed to evaluate their impact on the photovoltaic performance of solar cells. The PECVD technique was employed to grow high-quality, well-aligned CNT arrays, with radii and lengths precisely controlled. The effects of CNT radius and length on key solar cell parameters, such as current density, open-circuit voltage, fill factor, and overall efficiency, were simulated using the SCAPS 1D software. Simulation results revealed that both CNT radius and length significantly influenced the performance of the solar cells, with optimal CNT dimensions leading to improved efficiency. The study highlights the potential of tailoring CNT array properties to enhance the performance of solar cells, providing insights into how variations in CNT geometry can be leveraged to optimize the absorber layer in photovoltaic devices.