Joseph Ngugi Kahiu

Kyungpook National University — South Korea

Materials Science · Physical Sciences

12h-index344citations22works3.32yr avg
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Research Topics

Advanced Thermoelectric Materials and Devices(21), Chalcogenide Semiconductor Thin Films(10), Heusler alloys: electronic and magnetic properties(10), 2D Materials and Applications(5), Intermetallics and Advanced Alloy Properties(3)

Publications22 total

A study of the properties of ZrNiSb defective half-Heusler alloy for thermoelectric and spintronic applications
Journal of Alloys and Compounds·2025· 1 cited
Synergistic effect of tri-doping with Mn, Ge, and Bi and thermoelectric enhancement of SnTe induced by grain boundary engineering and nanostructuring
Journal of Materiomics·2025· 1 citedOpen Access
Comprehensive Study of ZrNiIn<sub>0.5</sub>Sb<sub>0.5</sub> Double Half-Heusler Properties for Thermoelectric and Spintronics Applications: Intrinsic Homogeneity Optimization and Extrinsic Sc Doping Effects
ACS Applied Energy Materials·2025· 2 cited
Nonstoichiometric Tri-Doping for Grain Boundary Engineering and Nanostructuring in Snte Thermoelectrics
SSRN Electronic Journal·2025Open Access
Effects of Nb doping on the thermoelectric performance of CuI doped n-type Bi2Te3
Journal of Physics D Applied Physics·2024
Thermoelectric Characteristics of Bulk Cr2Te3 with Low Lattice Thermal Conductivity
Electronic Materials Letters·2024· 2 cited
Thermoelectric and Magnetic Properties of Biphasic ZrFe<sub>0.5</sub>Ni<sub>0.5</sub>Sb Double Half-Heusler and ZrNiSb Half-Heusler Induced by Co Doping
ACS Applied Electronic Materials·2024· 11 cited
Enhanced Electrical, Thermal, and Mechanical Properties of SnTe through Equimolar Multication Alloying for Suitable Device Applications
ACS Applied Energy Materials·2024· 13 cited
Thermoelectric Characteristics of Bulk Cr2te3 with Low Lattice Thermal Conductivity
SSRN Electronic Journal·2024Open Access
Synergetic effect of Bi and Al co-doping in GeTe-based thermoelectric materials leading to optimized carrier concentration tuning and high ZT
Journal of Alloys and Compounds·2023· 22 cited
Tailoring the Thermoelectric Performance of the Layered Topological Insulator SnSb<sub>2</sub>Te<sub>4</sub> through Bi Positional Doping at the Sn and Sb Cation Sites
ACS Applied Electronic Materials·2023· 16 cited
Asymmetric Thermoelectric Performance Tuning in Low-Cost ZrFe<sub><i>x</i></sub>Ni<sub>1–<i>x</i></sub>Sb Double Half-Heusler Materials
ACS Applied Energy Materials·2023· 31 cited
Synergetic Effect of Bi and Al Co-Doping in Gete-Based Thermoelectric Materials Leading to Optimized Carrier Concentration Tuning and High Zt
SSRN Electronic Journal·2023· 3 citedOpen Access
High thermoelectric and mechanical performance achieved by a hyperconverged electronic structure and low lattice thermal conductivity in GeTe through CuInTe<sub>2</sub> alloying
Journal of Materials Chemistry A·2023· 37 citedOpen Access
Pushing the limit of synergy in SnTe-based thermoelectric materials leading to an ultra-low lattice thermal conductivity and enhanced <i>ZT</i>
Sustainable Energy & Fuels·2023· 14 cited
In-Situ Compositing, Improved Electronic Properties and Enhanced Device Performance in Snte Through Equi-Molar Multi-Cation Doping
SSRN Electronic Journal·2023Open Access
Ultralow Lattice Thermal Conductivity and Enhanced Mechanical Properties of Cu and Sb Co-Doped SnTe Thermoelectric Material with a Complex Microstructure Evolution
ACS Sustainable Chemistry & Engineering·2022· 43 cited
Optimized electronic performance in half-Heusler Ti-doped NbFeSb materials by stoichiometric tuning at the Fe and Sb sites
Journal of Alloys and Compounds·2021· 23 cited
Detrimental effects of impurity phases on the thermoelectric performance of Nb0.8Ti0.2Fe1.02Sb synthesized by arc-melting
Journal of Alloys and Compounds·2021· 13 cited
Origin of low thermal conductivity in Nb1-xTixFe1.02Sb half-Heusler thermoelectric materials
Journal of the European Ceramic Society·2021· 19 cited
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Frequent Co-authors

Ho Seong Lee(22), Samuel Kimani Kihoi(19), Hyunji Kim(18), U. Sandhya Shenoy(11), D. Krishna Bhat(11), Seonghoon Yi(4), Kwi‐Il Park(4), Donghyun Shin(4), Seyeong Kim(2), Juhee Ryu(2), Cheol Min Kim(2), Innocent Thato Marekwa(2), Hye-Won Choi(2), Eun-Ji Meang(2), K.-C. Park(2), Dong Hyun Shin(1), Hyerin Jeong(1), Kyu Hyoung Lee(1), Woo Hyun Nam(1), Donghyun Shin(1)