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Now showing items 1-20 of 45

Analysis of ternary K3Cu3As2 compound for photovoltaic applications using density functional theory

Mbilo, Mwende; Musembi, Robinson (Journal of the Korean Ceramic Society, 11/10/2022)

Ternary semiconductor materials are attractive compounds for optoelectronic and photovoltaic applications due to their valuable properties. A key challenge in photovoltaics is to develop alternative materials with good ...
Investigation of Hydrocarbon Generation Potential of oml 64 In Warri State, Nigeria

E K, Nyantakyi; S, Mohammed; P, Anumah; J, Borkloe; A, Morgan (Journal of Applied Geochemistry; Hyderabad, 2020)

This study has investigated hydrocarbon generation potential for OML 64 in Warri State, Nigeria. Ten (10) core samples collected at stratigraphic depths from four producing fields of the Oil Mining Lease, OML 64 in Warri ...
Improving the efficiency and stability of tin-based perovskite solar cells using anilinium hypophosphite additive

Okoth Obila, Jorim; Lei, Hongwei; Omolo Ayieta, Elijah; Awuor Ogacho, Alex; O. Aduda, Bernard; Wang, Feng (New Journal of Chemistry, 2021-03-31)

Tin (Sn) is a potential replacement for lead in organic–inorganic perovskite solar cell (PVSC) technology due to the attractive optoelectronic properties of Sn-perovskites. However, the poor stability of Sn2+ ions is still ...
Optoelectronic property refinement of FASnI3 films for photovoltaic application

Obila, Jorim Okoth; Lei, Hongwei; Omollo Ayieta, Elijah; Ogacho, Alex Awuor; Aduda, Bernard O.; Wang, Feng (Materials Letters, 2021-05-24)

Tin (Sn) is a promising substitute for lead (Pb) in organic–inorganic hybrid halide perovskite-photovoltaic devices, but it is prone to delivering low power conversion efficiencies (PCEs) due to the poor quality of ...
Investigating the Behaviour of Air–Water Upward and Downward Flows: Are You Seeing What I Am Seeing?

Abdulkadir, Mukhtar; T. Kajero, Olumayowa; O. Olarinoye, Fawziyah; O. Udebhulu, Dickson; Zhao, Donglin; M. Aliyu, Aliyu; Al-Sarkhi, Abdelsalam (Energies, 2021-10-28)

Understanding the behaviour of gas–liquid flows in upward and downward pipe configurations in chemical, petroleum, and nuclear industries is vital when optimal design, operation, production, and safety are of paramount ...
Technical and economic feasibility assessment of hybrid renewable energy system at Kenyan institutional building: A case study

Eze, Fabian; Ogola, Julius; Kivindu, Reuben; Egbo, Munonyedi; Obi, Chioma (Sustainable Energy Technologies and Assessments, 2021-12-30)

This study focused on the technical and economic feasibility assessment of hybrid renewable energy system for powering institutional building in Kenya – a case study of the School of Engineering, University of Nairobi. The ...
Ab initio study of K3 Cu3 P2 material for photovoltaic applications

Mbilo, Mwende; S. Manyali, George; J. Musembi, Robinson (Computational Condensed Matter, 2022-07-29)

Search for efficient materials for application in the fields of optoelectronics and photovoltaics are some of the most active areas of research across the world. The potential of compounds such as KCuP is not yet fully ...
First-Principle Calculations to Investigate Structural, Electronic, Elastic, Mechanical, and Optical Properties of K2CuX (X=As, Sb) Ternary Compounds

Mbilo, Mwende; Musembi, Robinson (Advances in Materials Science and Engineering, 2022-09-20)

Efficient materials with good optoelectronic properties are required for the good performance of photovoltaic devices. In this work, we present findings of a theoretical investigation of the structural, electronic, elastic, ...
Ab Initio Study of Structural, Electronic, Elastic, Mechanical, and Optical Properties of K4XP2 (X = Zn, Cd) Compounds for Optoelectronic Applications

Musembi, Robinson; Mbilo, Mwende (2022-09-21)

The structural electronic, elastic, mechanical and optical properties of the ternary compounds K4ZnP2 and K4CdP2 have been studied by means of density functional theory (DFT) using the plane waves method. The generalized ...
Performance Study of a Grid Connected Solar PV System in Zagtouli, Burkina Faso

Florent Palm, Sami; Waita, Sebastian; Nyangonda, Thomas; Chebak, Ahmed (IEEE, 2022-10-03)

The Performance study of a 1MW p Zagtouli PV system was done using meteorological, power generation, and operations data for the period 2019 through 2021. In the three years, data were analyzed for the coldest month ...
First principles calculation to investigate the structural, electronic, elastic, mechanical, and optical properties of K2NiP2 ternary compound

Mbilo, Mwende; Musembi, Robinson (AIP Advances, 2022-10-28)

First-principles calculations of the structural, electronic, elastic, mechanical, and optical properties of the K2NiP2 ternary compound using density functional theory as implemented in the quantum espresso package have ...
First-principles study of properties of X3Sb2Au3 (X = K, Rb) ternary compounds for photovoltaic applications

Mbilo, Mwende; Musembi, Robinson; Rai, D. P. (Indian Journal of Physics, 2022-11-14)

In this work, the structural, electronic, elastic, and optical properties of X3Sb2Au3 (X = K, Rb) ternary compounds have been investigated using the density-functional theory method as implemented in the quantum espresso ...
Agrivoltaic, a Synergistic Co-Location of Agricultural and Energy Production in Perpetual Mutation: A Comprehensive Review

Sarr, Aminata; Y. M., Soro; Alain K., Tossa; Lamine, Diop (Processes, 2023-03-20)

Agrivoltaic systems, which consist of the combination of energy production by means of photovoltaic systems and agricultural production in the same area, have emerged as a promising solution to the constraints related to ...
Ab-initio computation of structural, elastic, mechanical and optical properties of Cs2ScAgI6 double perovskite semiconductor compound

Musembi, Robinson; Mbilo, Mwende (MRS Advances, 2023-05-25)

A novel Cs2ScAgI6 double perovskite semiconductor material has been investigated on electronic, mechanical, elastic and optical properties using the plane wave self-consistent field method by using generalised gradient ...
Demand response-fuzzy inference system controller in the multi-objective optimization design of a photovoltaic/wind turbine/battery/supercapacitor and diesel system: Case of healthcare facility

Megaptche, Christelle Arielle Mbouteu; Musau, Peter Moses; Tjahè, Agnès Virginie; Kim, Hanki; Waita, Sebastian; Aduda, Bernard Odhiambo (Energy Conversion and Management, 2023-06-13)

One of the most common causes of power outages in developing countries is a global mismatch between supply and demand. The effects of this phenomenon are especially devastating in the healthcare sector. This paper describes ...
Overcoming the challenges of integrating variable renewable energy to the grid: A comprehensive review of electrochemical battery storage systems

Deguenon, Lere; Yamegueu, Daniel; kadri, Sani Moussa; Gomna, Aboubakar (Journal of Power Sources, 2023-06-24)

The increasing penetration of intermittent renewable energy sources such as solar and wind is creating new challenges for the stability and reliability of power systems. Electrochemical battery energy storage systems offer ...
An ab-initio study of P-type ZrCoY (YSb and Bi) half – Heusler semiconductors

Allan, Lynet; . Mulwa, Winfred M; M. Mwabora, Julius; J. Musembi, Robinson; Mapasha, R.E. (Heliyon, 2023-07-25)

In this study, the structural, electronic, mechanical, optical, and thermoelectric properties of the cubic half-Heusler compound ZrCoY(YSb and Bi) obtained using first-principles calculations are presented. The following ...
Performance Evaluation of Burkina Faso’s 33 MW Largest Grid-Connected PV Power Plant

Palm, Sami Florent; Youssef, Lamkharbach; Waita, Sebastian; Nyangonda, Thomas Nyachoti; Radouane, Khalid; Chebak, Ahmed (Energies, 2023-08-25)

This study conducted an in-depth analysis of the performance of the largest Grid-Connected Solar Photovoltaic System in Burkina Faso from 2019 to 2021. The research utilized measured data and simulated the plant’s performance ...
Performance Comparison of Different Methyl Group Positioning on Salicylic acid Sensitizers for Photoelectrochromic Device

v, Seok In; Okwako, Jacinta Akoth; Song, Seung Han; Park, Sunghyoek; Dao, Thuy Thi; Tran, Hung Van; Aduda, Bernard O.; Waita, Sebastian; Hong, Young-Sik; Kwak, Kyungwon; Hong, Sungjun; Han, Chi-Hwan (IEEE Xplore, 2023-09-01)

Photoelectrochromic device (PECD) has become an important prospect technology for the deployment as an energy saving smart window in commercial and residential building sector. In this study, the effects of the position ...
Influence of perovskite thickness on the performance of silver-doped NaZnBr3 perovskite solar cells using SCAPS software

Abdulmalik, M.O.; Danladi, E. (Semiconductor Physics, Quantum Electronics & Optoelectronics, 2023-09-20)

The absorbing layer thickness is a crucial parameter that significantly impacts the performance of perovskite solar cells (PSCs). In this study, we investigated the influence of the thickness of absorbing layer on the ...

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