The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Dec 30, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.699) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
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gas sensors | oxide nanostructures | oxide electrolyte
H-Index Metrics
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H-Index100
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i10 Index307
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Citation Counts32,140
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energy materials | nanomaterials | spray pyrolysis | battery material
H-Index Metrics
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H-Index92
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i10 Index575
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Citation Counts33,163
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2D Materials | Halide perovskite materials | Light-emitting diodes | Photovoltaic cells | Water splittin
H-Index Metrics
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H-Index85
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i10 Index317
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Citation Counts22,367
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Intelligent Control | Physical AI | Neural network | Fuzzy system | Learning syste
H-Index Metrics
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H-Index84
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i10 Index456
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Citation Counts25,499
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Materials Science | Energy Conversion & Storage Material
H-Index Metrics
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H-Index77
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i10 Index229
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Citation Counts21,213
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Environmental Engineering | Desalination | Membrane technology | Water-Energy Nexu
H-Index Metrics
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H-Index74
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i10 Index212
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Citation Counts21,940
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nanocrystal | nanomaterial | water splitting | fuel cell | carbon dioxide reductio
H-Index Metrics
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H-Index70
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i10 Index232
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Citation Counts20,062
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perovskite | solar cells | LEDs | Green Hydrogen | Detector
H-Index Metrics
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H-Index70
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i10 Index209
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Citation Counts35,457
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LED | semiconductor processing | semiconducting material
H-Index Metrics
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H-Index70
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i10 Index375
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Citation Counts19,756
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