Gallery — Recent

Microscopic spatial defects (inhomogeneities) in solar cells have a detrimental impact on the overall performance of the solar cells. These defects can be due to the polycrystalline nature of the photovoltaic absorber (general case) or on the other hand, the characterization method itself can induce such inhomogeneities (ex: local excitation with confocal system). Photoluminescence imaging in particular is the most attractive type of experimental character- ization technique which has been studied by many research groups. Since it is contactless, it allows a complete analysis of the photovoltaic material and it can actually be performed at each step of the solar cell fabrication process. To properly analyze the recorded images, one has to model the transport properties. In this work we model the transport properties in 2D using both a numerical and analytic approach. First,we model the global illumination of the sample, we then analyze the effects of grains and surface recombination. Second, we study lateral transport that can be influenced by recombination at the surface (passivation issues), grain boundaries (polycrystalline cells) or local artifacts (shunts, defects...). At the same time we are able to extract the lifetime knowing the generation rate and solving the excess carrier density from our model. And finally we implement our model to extract some cell parameters like the diffusion length from experimental data through data fitting.

This is written as a learning material for high school students, but since it is in LaTeX, I submitted it to the Overleaf Gallery. A guide for answering questions asking “define” or “what is meant by”, as well as some other tricky questions.

Fill in for HW1

Este modelo de projeto de pesquisa foi modificado/adaptado (por mim, Keli F. Seidel) a partir de um modelo pré-existente "Template Projeto de pesquisa FACEPE-PIBIC"

Template para a escrita de dissertação de MSI ou relatório de projeto de EI da ESTiG.

Criado a partir da classe abntex2, desenvolvida pelo Centro de Pesquisa em Arquitetura da Informação (CPAI)

PLANO DE PESQUISA INDIVIDUAL Criado a partir da classe abntex2, desenvolvida pelo Centro de Pesquisa em Arquitetura da Informação (CPAI)

This guide is for authors who are preparing papers for the Taylor & Francis journal International Journal of Geographical Information Science (tGIS ) using the LATEX 2ε document preparation system and the Class file tGIS2e.cls, which is available via the journal homepage on the Taylor & Francis website. Authors planning to submit their papers in LATEX2ε are advised to use tGIS2e.cls as early as possible in the creation of their files.

This is a template for the report of Final Year Project (FYP) for the courses offered at the Universiti Teknology MARA (UiTM) Kelantan and also might be useful for other universities. This template was modified from the MMU Thesis template by LianTze Lim.