Johnson Kwame Efavi profile image

Johnson Kwame Efavi

PROFESSOR

Verified email at ug.edu.gh Senior Lecturer University of Ghana Google Scholar

CollegeCOLLEGE OF BASIC & APPLIED SC.
School / InstituteSCHOOL OF ENGINEERING
DepartmentDEPARTMENT OF MATERIALS SCIENCE AND ENGINEERING
Ceramics Composites Nanomaterials Biomaterials
Publications

84

Citations

1,587

H-index

23

i10-index

41

Publication activity
Publication statistics
Average citations
18.9
Most cited paper
105
First publication year
1900
Latest publication year
2025
Last updated
14 Sep 2026, 10:27
Publications

84 matching publications

PublicationYearJournalThematic areaCitations
Subthreshold characteristics of p-type triple-gate MOSFETs
M Lemme, T Mollenhauer, W Henschel, T Wahlbrink, H Gottlob, J Efavi, ...
2003 ESSDERC'03. 33rd Conference on European Solid-State Device Research, 2003 …, 2003 Engineering 22
Monodispersed AgNPs Synthesized from the Nanofactories of Theobroma cacao (Cocoa) Leaves and Pod Husk and Their Antimicrobial Activity
JK Efavi, E Nyankson, K Kyeremeh, GP Manu, K Asare, N Yeboah
2022 International Journal of Biomaterials 2022 (1), 4106558, 2022 Agriculture 20
Characterization of Chitosan/Zeolite drug delivery composite and curcumin release kinetics in a simulated pH environment
GP Manu, D Narh, B Asimeng, N Kwakye, BA Abusuapa, D Appuing, ...
2025 Scientific African 28, e02668, 2025 Engineering 19
The effect of synthesis route on the photocatalytic performance of Ag-TiO2 using rhodamine b dyes, pesticides, and pharmaceutical waste as model pollutants
E Nyankson, N Yeboah, SO Jnr, S Onaja, T Mensah, JK Efavi
2022 Materials Research Express 9 (9), 094001, 2022 Engineering 17
Single-Walled boron nitride nanotubes interaction with nickel, titanium, palladium, and gold metal atoms-A first-principles study
KW Kayang, E Nyankson, JK Efavi, EKK Abavare, G Garu, ...
2019 Results in Materials 2, 100029, 2019 Engineering 16
Effect of magnesium and sodium salts on the interfacial characteristics of soybean lecithin dispersants
JK Efavi, E Nyankson, A Yaya, B Agyei-Tuffour
2017 Industrial & Engineering Chemistry Research 56 (44), 12608-12620, 2017 Engineering 16
Nanowire fin field effect transistors via UV-based nanoimprint lithography
A Fuchs, M Bender, U Plachetka, L Kock, T Wahlbrink, HDB Gottlob, ...
2006 Journal of Vacuum Science & Technology B: Microelectronics and Nanometer …, 2006 Engineering 16
Scalable gate first process for silicon on insulator metal oxide semiconductor field effect transistors with epitaxial high-k dielectrics
HDB Gottlob, T Mollenhauer, T Wahlbrink, M Schmidt, T Echtermeyer, ...
2006 Journal of Vacuum Science & Technology B: Microelectronics and Nanometer …, 2006 Engineering 16
A comparative study of the interaction of nickel, titanium, palladium, and gold metals with single-walled carbon nanotubes: a DFT approach
KW Kayang, E Nyankson, JK Efavi, VA Apalangya, BI Adetunji, ...
2019 Results in Physics 12, 2100-2106, 2019 Engineering 15
Low-temperature conductance measurements of surface states in HfO2–Si structures with different gate materials
Y Gomeniuk, A Nazarov, Y Vovk, Y Lu, O Buiu, S Hall, JK Efavi, ...
2006 Materials science in semiconductor processing 9 (6), 980-984, 2006 Engineering 15
Investigating the effect of curing activators on the cure kinetics of acrylonitrile–butadiene rubber filled with graphene oxide and reduced graphene oxides nanocomposites
B Mensah, B Onwona-Agyeman, JK Efavi, RA Ofor, M Zigah, J Koranteng, ...
2023 International Journal of Polymer Science 2023 (1), 6387898, 2023 Engineering 12
Impact of Al-, Ni-, TiN-, and Mo-metal gates on MOCVD-grown HfO2 and ZrO2 high-κ dielectrics
S Abermann, J Efavi, G Sjöblom, M Lemme, J Olsson, E Bertagnolli
2007 Microelectronics reliability 47 (4-5), 536-539, 2007 Engineering 11
Processing and evaluation of metal gate/high-κ/Si capacitors incorporating Al, Ni, TiN, and Mo as metal gate, and ZrO2 and HfO2 as high-κ dielectric
S Abermann, JK Efavi, G Sjoblom, MC Lemme, J Olsson, E Bertagnolli
2007 Microelectronic engineering 84 (5-8), 1635-1638, 2007 Engineering 11
Nickel-silicide process for ultra-thin-body SOI-MOSFETs
M Schmidt, T Mollenhauer, HDB Gottlob, T Wahlbrink, JK Efavi, ...
2005 Microelectronic engineering 82 (3-4), 497-502, 2005 Engineering 11
Potential application of dioctyl sodium sulfosuccinate salt (DOSS)–saponin binary dispersant in oil spill remediation: synergistic interaction between DOSS and saponin
E Nyankson, B Agyei-Tuffour, JK Efavi, A Yaya, B Onwona-Agyeman, ...
2020 Water, Air, & Soil Pollution 231 (2), 76, 2020 Engineering 10
Investigating triaxial electrical properties of ceramic composites for electroporcelain insulators
ANN Dowuona, A Yaya, E Nyankson, JK Efavi, LNW Damoah, ...
2018 Journal of Ceramic Processing Research 19 (2), 95-100, 2018 Engineering 10
Characterization and inhibitory effects of magnetic iron oxide nanoparticles synthesized from plant extracts on HeLa cells
BO Asimeng, E Nyankson, JK Efavi, A Nii Amarkai, GP Manu, E Tiburu
2020 International Journal of Biomaterials 2020 (1), 2630735, 2020 Engineering 9
Influence of preferred orientation on the bioactivity of hydroxyapatite: a potential tooth repair and implant surface coating material
BO Asimeng, EK Tiburu, K Kan-Dapaah, JK Efavi, R Asiamah, DW Afeke
2020 Cerâmica 66 (379), 340-346, 2020 Engineering 9
Graphene-maleic anhydride-grafted-carboxylated acrylonitrile butadiene-rubber nanocomposites
B Mensah, JK Efavi, DS Konadu, GP Manu
2022 Heliyon 8 (12), 2022 Engineering 8
Snail based carbonated-hydroxyapatite material as adsorbents for water iron (II)
BO Asimeng, EK Amenyaglo, D Dodoo-Arhin, JK Efavi, B Kwakye-Awuah, ...
2022 Materials 15 (9), 3253, 2022 Engineering 8
A study of polybromide chain formation using carbon nanomaterials via density functional theory approach
A Yaya, CP Ewels, JK Efavi, B Agyei-Tuffour, K Kan-Dapaah, ...
2016 Cogent Engineering 3 (1), 1261509, 2016 Engineering 8
Synthesis and microstructural characterization of kaolin–polyethylene composites
B Agyei‐Tuffour, YD Bensah, LNW Damoah, D Dodoo‐Arhin, A Yaya, ...
2014 Polymer composites 35 (8), 1507-1515, 2014 Engineering 8
Approaches to CMOS integration of epitaxial gadolinium oxide high-k dielectrics
HDB Gottlob, T Echtermeyer, T Mollenhauer, M Schmidt, JK Efavi, ...
2006 2006 European Solid-State Device Research Conference, 150-153, 2006 Engineering 8
Comparison of metal gate electrodes on MOCVD HfO2
MC Lemme, JK Efavi, HDB Gottlob, T Mollenhauer, T Wahlbrink, H Kurz
2005 Microelectronics Reliability 45 (5-6), 953-956, 2005 Engineering 8
Investigation of high-K gate stacks with epitaxial Gd2O3 and FUSI NiSi metal gates down to CET= 0.86 nm
HDB Gottlob, T Echtermeyer, T Mollenhauer, JK Efavi, M Schmidt, ...
2006 Materials science in semiconductor processing 9 (6), 904-908, 2006 Engineering 7