K
Kamaruzzaman Sopian
Researcher at National University of Malaysia
Publications - 1080
Citations - 33829
Kamaruzzaman Sopian is an academic researcher from National University of Malaysia. The author has contributed to research in topics: Photovoltaic system & Solar energy. The author has an hindex of 84, co-authored 989 publications receiving 25293 citations. Previous affiliations of Kamaruzzaman Sopian include Universiti Tenaga Nasional & Universiti Putra Malaysia.
Papers
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Journal ArticleDOI
Nanostructured NiOx as hole transport material for low temperature processed stable perovskite solar cells
Towhid H. Chowdhury,Towhid H. Chowdhury,Ryuji Kaneko,Ryuji Kaneko,Md. Emrul Kayesh,Md. Emrul Kayesh,Md. Akhtaruzzaman,Kamaruzzaman Sopian,Jae-Joon Lee,Ashraful Islam +9 more
TL;DR: In this article, a nanostructured NiOx with particle size ∼85 nm was used as an efficient hole transport material (HTM) for low temperature processed inverted planar perovskite solar cell (PSC) with power conversion efficiency of 15.64%.
Proceedings Article
Mathematical regression model for the prediction of concrete strength
TL;DR: In this paper, a new mathematical models were proposed and developed using non-linear regression equation for the prediction of concrete compressive strength at different ages, the variables used in the prediction models were from the knowledge of mix itself, i.e. mix proportion elements.
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Optimal Sizing of the Energy Sources in Hybrid PV/Diesel Systems: A Case Study for Malaysia
TL;DR: In this paper, the authors presented an optimization of hybrid photovoltaic (PV)/diesel systems for five regions in Malaysia, where the PV array, storage battery, and diesel generator capacities were optimized, considering very low loss of load probability.
Journal ArticleDOI
The Effect of Drying Air Temperature and Humidity on the Drying Kinetic of Kenaf Core
TL;DR: In this article, the drying kinetics of kenaf core were investigated in a Low Temperature and Humidity Chamber Test and the fit quality of the models was evaluated based on their coefficient of determination (R2), reduced chi-square (χ2) and root mean square error (RMSE).
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Renewable energy performance evaluation studies using the data envelopment analysis (DEA): A systematic review
TL;DR: The review found that the DEA method can be used as an appropriate tool for performance evaluation of renewable energy studies' research and can be applied critically for decision making, especially for policymakers in the renewable energy sector.