Open AccessВозможности применения геометрической оптики для расчетов нано- и микроструктур в фотовольтаике
Author(s) -
Е.В. Класс
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2019.12.48700.199-19
Subject(s) - materials science , monte carlo method , optics , computer simulation , etching (microfabrication) , microfabrication , microstructure , surface roughness , surface finish , convergence (economics) , mechanics , physics , composite material , mathematics , medicine , statistics , alternative medicine , layer (electronics) , pathology , fabrication , economics , economic growth
Numerical simulation of nano and microstructured photovoltaic materials be means radiation transport software may become quite resource-intensive due to poor convergence of the applied optical -properties estimation method. In this paper, applicability of the geometrical optics approximation to microstructure-property modeling was illustrated by mutual comparison of the results of Monte-Carlo simulation in 3D POKS-RG program with a number of available experimental data about optical properties of nano- and microstructures.Numerical simulation accounting peculiar roughness of the surfase as a side effect of etching in microfabrication were in acceptable agreement with the experimental results. The furher analysis revealed essential influence of substrate surfase roughness onto the absorption of the incident light. The aforementioned peculiarity results in nonuniform structure-height distribution of change carriers and might partially cause the modest efficiency of radial p-n junction solar gells.