Subject Rankings

University of the Free State Subject Rankings 2025

AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Oct 19, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (931.668) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

* Total H IndexRankings
Ranking Based On Selection :1
HC Swart
nanophosphors
luminescence
cathodoluminescence
surface characterization
Metrics
H-Index
i10 Index
Citation Counts
71
608
25,903
* Total H IndexRankings
Ranking Based On Selection :3
Francis Birhanu Dejene
Condensed Matter Physics
Renewable Energy
Metrics
H-Index
i10 Index
Citation Counts
31
104
3,348
* Total H IndexRankings
Ranking Based On Selection :4
Elizabeth Coetsee
Physics
Semiconductors
Phosphors
Solar Cells
Metrics
H-Index
i10 Index
Citation Counts
28
89
2,765
* Total H IndexRankings
Ranking Based On Selection :8
Sumedha Tamboli
Luminescence
Material Science
Solid State Physics
Metrics
H-Index
i10 Index
Citation Counts
14
19
423
* Total H IndexRankings
Ranking Based On Selection :9
Ashwini Kumar Sharma
Luminescencet Materials
Upconversion Nanophosphors
Solid state lighting
Crystallography
Solar Cell Technology
Metrics
H-Index
i10 Index
Citation Counts
13
17
717
* Total H IndexRankings
Ranking Based On Selection :10
Mubarak Yagoub
Experimental Condensed matter physics
Luminescent Materials
optoelectronics
Metrics
H-Index
i10 Index
Citation Counts
11
12
369
* Total H IndexRankings
Ranking Based On Selection :11
Ljb Erasmus
Physics. phosphors
luminescence
solar cells
light emitting diodes
Metrics
H-Index
i10 Index
Citation Counts
8
6
250
* Total H IndexRankings
Ranking Based On Selection :12
Achamyeleh G. Mengistu
Agriculture
Soil Physics
Watershed Management
Environment
Metrics
H-Index
i10 Index
Citation Counts
7
6
260
* Total H IndexRankings
Ranking Based On Selection :13
Hendrik Jacobus Van Heerden
Multiwavelength Astrophysics
Instrumentation
Occultations
Digital Planetariums
Robotic Telescopes
Metrics
H-Index
i10 Index
Citation Counts
6
2
137
* Total H IndexRankings
Ranking Based On Selection :14
Moeketsi Freddie Tlali
Science education for sustainability
Metrics
H-Index
i10 Index
Citation Counts
4
3
55
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
HC Swart
Metrics
H-Index
i10-Index
Citation Counts
71
608
25,903
nanophosphors
luminescence
cathodoluminescence
surface characterization
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Petrus Johannes Meintjes
Metrics
H-Index
i10-Index
Citation Counts
51
138
14,371
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Francis Birhanu Dejene
Metrics
H-Index
i10-Index
Citation Counts
31
104
3,348
Condensed Matter Physics
Renewable Energy
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Elizabeth Coetsee
Metrics
H-Index
i10-Index
Citation Counts
28
89
2,765
Physics
Semiconductors
Phosphors
Solar Cells
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Lehlohonolo Koao
Metrics
H-Index
i10-Index
Citation Counts
22
37
1,333
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Mart-Mari Duvenhage
Metrics
H-Index
i10-Index
Citation Counts
18
26
1,262
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Ro Ocaya|Richard Opio Ocaya
Metrics
H-Index
i10-Index
Citation Counts
16
22
828
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Sumedha Tamboli
Metrics
H-Index
i10-Index
Citation Counts
14
19
423
Luminescence
Material Science
Solid State Physics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Ashwini Kumar Sharma
Metrics
H-Index
i10-Index
Citation Counts
13
17
717
Luminescencet Materials
Upconversion Nanophosphors
Solid state lighting
Crystallography
Solar Cell Technology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Mubarak Yagoub
Metrics
H-Index
i10-Index
Citation Counts
11
12
369
Experimental Condensed matter physics
Luminescent Materials
optoelectronics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Ljb Erasmus
Metrics
H-Index
i10-Index
Citation Counts
8
6
250
Physics. phosphors
luminescence
solar cells
light emitting diodes
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Achamyeleh G. Mengistu
Metrics
H-Index
i10-Index
Citation Counts
7
6
260
Agriculture
Soil Physics
Watershed Management
Environment
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Hendrik Jacobus Van Heerden
Metrics
H-Index
i10-Index
Citation Counts
6
2
137
Multiwavelength Astrophysics
Instrumentation
Occultations
Digital Planetariums
Robotic Telescopes
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Moeketsi Freddie Tlali
Metrics
H-Index
i10-Index
Citation Counts
4
3
55
Science education for sustainability