Bücher von Faiz Ahmad

This book contains papers presented at the International Conference on Renewable Energy and E-mobility (ICREEM 2022) under the banner of World Engineering, Science & Technology Congress (ESTCON 2022) held from December 1 to 2, 2022, at Borneo Convention Centre, Kuching, Malaysia. The conference contains papers presented by academics and industrial practitioners showcasing their latest advancements and findings in renewable energy systems and sustainable mobility. The papers are categorized under the following tracks and topics of research: (1) solar and thermal energy; (2) green and E-mobility; and (3) advanced simulation and technologies.

This book contains papers presented in the 7th International Conference on Production, Energy and Reliability (ICPER 2020) under the banner of World Engineering, Science & Technology Congress (ESTCON2020) held from 14th to 16th July 2020 at Borneo Convention Centre, Kuching, Malaysia. The conference contains papers presented by academics and industrial practitioners showcasing their latest advancements and findings in mechanical engineering areas with an emphasis on sustainability and the Industrial Revolution 4.0. The papers are categorized under the following tracks and topics of research:IoT, Reliability and SimulationAdvanced Materials, Corrosion and Autonomous ProductionEfficient Energy Systems and ThermofluidsProduction, Manufacturing and Automotive

Thin-film solar cells are cheap and easy to manufacture but require improvements as their efficiencies are low compared to that of the commercially dominant crystalline-silicon solar cells. An optoelectronic model is formulated and implemented along with the differential evolution algorithm to assess the efficacy of grading the bandgap of the CIGS, CZTSSe, and AlGaAs photon-absorbing layer for optimizing the power-conversion efficiency of thin-film CIGS, CZTSSe, and AlGaAs solar cells, respectively, in the two-terminal single-junction format. Each thin-film solar cell is modeled as a photonic device as well as an electronic device. Solar cells with two (or more) photon-absorbing layers can also be handled using the optolelectronic model, whose results will stimulate experimental techniques for bandgap grading to enable ubiquitous small-scale harnessing of solar energy.