| Description: |
Title:
Modeling of P-N junction devices using various materials for photovoltaic applications under different operating environments
Date and Time:
Friday, July 7, 2023; 1:00 - 1:30 PM EDT
Register:
https://purdue.webex.com/weblink/register/r694b279ff381a9b6885c70bc5b4494aa
Featured Tool:
ADEPT 2.1
Abstract:
Photovoltaic devices are typically two-, three- or multi-layer junction devices which can generate carriers on exposure to photon radiation. There are several essential device-specific factors and parameters which are required for accurate modeling and simulation of such devices. In this talk, Dr. Roy will talk about a tool called ADEPT (A Device Emulation Program and Tool) on nanoHUB for modeling and simulating photovoltaic devices using a range of different materials and structural configurations. ADEPT is a detailed numerical device simulation code developed at Purdue University. In this tool, semiconductor equations, Poisson’s equation, and the hole and electron continuity equations (assuming drift-diffusion transport), are solved numerically, subject to appropriate boundary conditions (typically an ideal ohmic contact). Dr. Roy will describe how to model a simple silicon-based solar cell and then go over simulating photovoltaic devices composed of various other materials. In addition, it is very important to obtain the material-specific electronic and optical properties before we can start simulating our device models. In this regard, Dr. Roy will briefly talk about some other tools and software which can be used to obtain the electronic and optical properties of materials to be used in photovoltaic applications. Specifically, he will talk about Quantum ESPRESSO for calculating electronic and optical properties of materials, and Stanford Stratified Structure Solver (S4) for modeling optical features of multi-layer devices.
Presenter Bio:
Sayan Roy, Ph.D., Post-Doctoral Research Assistant Purdue University (ECE)
Sayan Roy is a post-doctoral research assistant in the School of Electrical and Computer Engineering at Purdue University. He obtained his BS degree in May 2013, MS degree in May 2017 and PhD degree in April 2021, all in Electrical and Computer Engineering from Purdue University. His current research interests include transition metal di-chalcogenides (TMDCs), photovoltaics, photonics and nanoelectronics. His doctoral research topic was modeling of ultrathin 2D TMDCs for nano-electronic and photovoltaic applications and implementing advanced techniques, with a focus on tungsten disulfide, tungsten diselenide and hybrid tungsten-based TMDCs. His post-doctoral research topic is investigation of 2D materials and TMDCs for quantum applications and radiation-resistant electronics. In addition to his research activities, he has been a teaching assistant (TA) and instructor for several courses in the ECE department at Purdue University. |