Suivre
Johnson Kwame Efavi
Johnson Kwame Efavi
Senior Lecturer University of Ghana
Adresse e-mail validée de ug.edu.gh
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Modified halloysite nanoclay as a vehicle for sustained drug delivery
EG Bediako, E Nyankson, D Dodoo-Arhin, B Agyei-Tuffour, D Łukowiec, ...
Heliyon 4 (7), 2018
802018
The effect of NaOH catalyst concentration and extraction time on the yield and properties of Citrullus vulgaris seed oil as a potential biodiesel feed stock
JK Efavi, D Dodoo-Arhin, D Kanbogtah, V Apalangya, E Nyankson, ...
South African Journal of Chemical Engineering 25 (1), 98-102, 2018
712018
CMOS integration of epitaxial Gd2O3 high-k gate dielectrics
HDB Gottlob, T Echtermeyer, T Mollenhauer, JK Efavi, M Schmidt, ...
Solid-State Electronics 50 (6), 979-985, 2006
632006
0.86-nm CET Gate Stacks With EpitaxialHigh-Dielectrics and FUSI NiSi Metal Electrodes
HDB Gottlob, T Echtermeyer, M Schmidt, T Mollenhauer, JK Efavi, ...
IEEE electron device letters 27 (10), 814-816, 2006
582006
Nanoscale TiN metal gate technology for CMOS integration
MC Lemme, JK Efavi, T Mollenhauer, M Schmidt, HDB Gottlob, ...
Microelectronic Engineering 83 (4-9), 1551-1554, 2006
522006
Characterization and Evaluation of Zeolite A/Fe3O4 Nanocomposite as a Potential Adsorbent for Removal of Organic Molecules from Wastewater
E Nyankson, J Adjasoo, JK Efavi, R Amedalor, A Yaya, GP Manu, K Asare, ...
Journal of Chemistry 2019, 2019
482019
Highly selective HBr etch process for fabrication of Triple-Gate nano-scale SOI-MOSFETs
MC Lemme, T Mollenhauer, H Gottlob, W Henschel, J Efavi, C Welch, ...
Microelectronic engineering 73, 346-350, 2004
462004
Highly selective etch process for silicon-on-insulator nano-devices
T Wahlbrink, T Mollenhauer, YM Georgiev, W Henschel, JK Efavi, ...
Microelectronic Engineering 78, 212-217, 2005
432005
Synthesis and characterisation of zeolite-A and Zn-exchanged zeolite-A based on natural aluminosilicates and their potential applications
E Nyankson, JK Efavi, A Yaya, G Manu, K Asare, J Daafuor, RY Abrokwah
Cogent Engineering 5 (1), 1440480, 2018
412018
Synthesis and kinetic adsorption characteristics of Zeolite/CeO2 nanocomposite
E Nyankson, J Adjasoo, JK Efavi, A Yaya, G Manu, A Kingsford, ...
Scientific African 7, e00257, 2020
402020
Ghana’s Quest for Oil and Gas: Ecological Risks and Management Frameworks
RA P.A. Sakyi, J.K. Efavi, d. atta-Peters
West African Journal of Applied Ecology 20 (1), 57-70, 2012
402012
Development of porous ceramic bodies from kaolin deposits for industrial applications
JK Efavi, L Damoah, DY Bensah, DD Arhin, D Tetteh
Applied clay science 65, 31-36, 2012
362012
Synthesis of TiO 2–Ag 3 PO 4 photocatalyst material with high adsorption capacity and photocatalytic activity: application in the removal of dyes and pesticides
E Nyankson, JK Efavi, B Agyei-Tuffour, G Manu
RSC advances 11 (28), 17032-17045, 2021
352021
Characterisation and identification of local kaolin clay from Ghana: A potential material for electroporcelain insulator fabrication
A Yaya, EK Tiburu, ME Vickers, JK Efavi, B Onwona-Agyeman, ...
Applied Clay Science 150, 125-130, 2017
352017
Introduction of crystalline high-k gate dielectrics in a CMOS process
HDB Gottlob, MC Lemme, T Mollenhauer, T Wahlbrink, JK Efavi, H Kurz, ...
Journal of non-crystalline solids 351 (21-23), 1885-1889, 2005
342005
Ag2CO3-halloysite nanotubes composite with enhanced removal efficiency for water soluble dyes
E Nyankson, B Agyei-Tuffour, E Annan, A Yaya, B Mensah, ...
Heliyon 5 (6), 2019
262019
Subthreshold characteristics of p-type triple-gate MOSFETs
M Lemme, T Mollenhauer, W Henschel, T Wahlbrink, H Gottlob, J Efavi, ...
ESSDERC'03. 33rd Conference on European Solid-State Device Research, 2003 …, 2003
222003
Investigation of MOS capacitors and SOI–MOSFETs with epitaxial gadolinium oxide (Gd2O3) and titanium nitride (TiN) electrodes
T Echtermeyer, HDB Gottlob, T Wahlbrink, T Mollenhauer, M Schmidt, ...
Solid-State Electronics 51 (4), 617-621, 2007
212007
Tungsten work function engineering for dual metal gate nano-CMOS
JK Efavi, T Mollenhauer, T Wahlbrink, HDB Gottlob, MC Lemme, H Kurz
Journal of Materials Science: Materials in Electronics 16, 433-436, 2005
212005
Industrial applications of clay materials from Ghana-a review
RB Asamoah, E Nyankson, E Annan, B Agyei-Tuffour, JK Efavi, ...
Oriental Journal of Chemistry 34 (4), 1719, 2018
192018
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