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 31, 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].
Rankings
Rankings
Lithium ion batteries | All Solid State Battery | Na ion and Potassium ion batteries | Cathode for batteries | Li sulfur and Li oxy
H-Index Metrics
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H-Index175
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i10 Index745
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Citation Counts117,635
Rankings
Metabolic engineering | synthetic biology | biochemical engineering | bioprocess engineerin
H-Index Metrics
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H-Index158
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i10 Index700
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Citation Counts90,852
Rankings
Materials Application | Air Quality | Environmental analysis | Odor VOC | Metal-Organic Framework
H-Index Metrics
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H-Index153
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i10 Index1,155
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Citation Counts114,172
Rankings
Rankings
Marine Biotechnology | Natural Products | Marine Biomaterial
H-Index Metrics
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H-Index135
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i10 Index505
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Citation Counts65,334
Rankings
Rankings
Materials Science | Batteries | First principles calculations | Water splitting | Materials Engineerin
H-Index Metrics
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H-Index128
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i10 Index334
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Citation Counts59,262
Rankings
Photocatalysis | Solar fuel | Advanced oxidation process | Environmental chemistry | Environmental engineerin
H-Index Metrics
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H-Index127
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i10 Index344
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Citation Counts82,016
Rankings
Rankings
Rankings
theranostics | molecular imaging | drug delivery | bioengineering | polymer
H-Index Metrics
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H-Index122
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i10 Index425
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Citation Counts51,305
Rankings
Rankings
Battery | Energy Storage | Materials Chemistry | Polymer | Supramolecular Chemistr
H-Index Metrics
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H-Index113
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i10 Index258
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Citation Counts54,980
Rankings
Rankings
Rankings
Rankings
Solar water splitting | chemical sensors | memristors | optoelectronics & plasmonics | metal-insulator transitio
H-Index Metrics
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H-Index108
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i10 Index554
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Citation Counts40,905
Rankings
Materials Science | Semiconductor Devices | Thin film | Fabricatio
H-Index Metrics
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H-Index106
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i10 Index616
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Citation Counts54,646
Rankings
Rankings
Nano sensors | Energy device | Electrospun nanofiber
H-Index Metrics
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H-Index104
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i10 Index394
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Citation Counts41,061
Rankings
Rankings
Metallic materials | High Entropy Alloy | Metal 3D Printing | Severe Plastic Deformation | FE
H-Index Metrics
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H-Index102
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i10 Index721
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Citation Counts44,457
Rankings
Triboelectric Medicine | Triboelectric & Piezoelectric | Nanogenerator | Battery-less Neuromodulatio
H-Index Metrics
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H-Index102
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i10 Index334
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Citation Counts35,991
Rankings
Green chemisrty | Porous materials | Metal-organic frameworks | Adsorption | Heterogenous catalysi
H-Index Metrics
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H-Index102
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i10 Index333
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Citation Counts39,688
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