- H-Index Rankings
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i10 Productivity Rankings
Measures productivity based on the number of papers with at least 10 citationsOnly AD
Citation Rankings
Ranks researchers according to their citation counts- Subject Rankings
Lists researchers across 13 main and 220 subfields- Top 100 Scientists
Highlights the most influential 100 scientists by region and disciplineSocial Sciences & HumanitiesNew
Evaluates performance in the social sciences and humanities- Art & Humanities
New
- University Rankings
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University Rankings
Ranks 24,500 institutions (universities, institutes, companies, hospitals)- University Subject Rankings
Ranks universities across 13 main academic fields- Young Universities
Ranks institutions founded in the last 30 years- Top 100 Institutions
Lists the top 100 institutions by country and subject
AD Students
- Country
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Country Rankings
Ranks 221 countries based on scientific productivity and impact- Country Reports
- Student
University, Subject, Country, Region, World
City University of Hong Kong 1.454 Scientists Subject Rankings - 2025
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 6 years. As of Jul 11, 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 (1.121.754) 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].
* Total H Index RankingsRankings
714World Rank
2Country Rank
1UniversityRanking Based On Selection:1Engineering & Technology / Nanoscience and Nanotechnology
Phase engineering of nanomaterials (PEN) and controlled epitaxial growth of heterostructureH-Index Metrics
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H-Index197
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i10 Index567
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Citation Counts160,279
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* Total H Index RankingsRankings
1,099World Rank
3Country Rank
2UniversityRanking Based On Selection:2* Total H Index RankingsRankings
1,372World Rank
6Country Rank
3UniversityRanking Based On Selection:3Engineering & Technology / Electrical & Electronic Engineering
Organic Photonics | Organic Electronics | Energy | Self-AssemblH-Index Metrics
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H-Index163
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i10 Index822
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Citation Counts102,085
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* Total H Index RankingsRankings
1,670World Rank
8Country Rank
4UniversityRanking Based On Selection:4Engineering & Technology / Metallurgical & Materials Engineering
Materials Science and Engineering | Plasma Science | Surface Science | BiomaterialH-Index Metrics
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H-Index155
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i10 Index1,803
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Citation Counts131,689
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* Total H Index RankingsRankings
1,795World Rank
12Country Rank
5UniversityRanking Based On Selection:5Others
Aqueous batteries | Zinc batteries | Solid state batteries | Energy storage devices | Catalysts for sustainable developmenH-Index Metrics
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H-Index152
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i10 Index542
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Citation Counts81,524
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* Total H Index RankingsRankings
1,864World Rank
14Country Rank
6UniversityRanking Based On Selection:6Engineering & Technology / Nanoscience and Nanotechnology
nanomaterials | quantum dots | nanotechnologH-Index Metrics
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H-Index151
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i10 Index523
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Citation Counts80,912
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* Total H Index RankingsRankings
2,146World Rank
17Country Rank
7UniversityRanking Based On Selection:7Engineering & Technology / Metallurgical & Materials Engineering
Materials | organic electronics | photovoltaicH-Index Metrics
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H-Index146
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i10 Index959
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Citation Counts87,813
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* Total H Index RankingsRankings
2,147World Rank
18Country Rank
8UniversityRanking Based On Selection:8Engineering & Technology / Electrical & Electronic Engineering
Organic electronics devices and nanomaterials for energy | environmental and biomedical applicationH-Index Metrics
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H-Index146
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i10 Index909
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Citation Counts85,633
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* Total H Index RankingsRankings
3,400World Rank
29Country Rank
9UniversityRanking Based On Selection:9Engineering & Technology / Metallurgical & Materials Engineering
Heterostructured materials | HDI hardening | Back stress | Nanomaterials | Deformation physicH-Index Metrics
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H-Index131
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i10 Index482
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Citation Counts69,414
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* Total H Index RankingsRankings
3,932World Rank
31Country Rank
10UniversityRanking Based On Selection:10Engineering & Technology / Electrical & Electronic Engineering
organic semiconducting materials | inorganic semiconductors | inorganic-organic hybrid materialH-Index Metrics
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H-Index126
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i10 Index527
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Citation Counts53,940
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* Total H Index RankingsRankings
4,226World Rank
35Country Rank
11UniversityRanking Based On Selection:11Engineering & Technology / Chemical Engineering
Thermodynamics | Water-Ice | Surfaces & Interfaces | Computational Nanoscience | Computational Materials SciencH-Index Metrics
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H-Index124
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i10 Index604
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Citation Counts61,563
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* Total H Index RankingsRankings
4,560World Rank
41Country Rank
12UniversityRanking Based On Selection:12Engineering & Technology / Mechanical Engineering
Sustainability | Functional Materials | Concrete Research | 3D Concrete Printing | Multiscale ModelinH-Index Metrics
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H-Index122
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i10 Index781
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Citation Counts59,767
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* Total H Index RankingsRankings
5,986World Rank
61Country Rank
13UniversityRanking Based On Selection:13* Total H Index RankingsRankings
6,075World Rank
64Country Rank
14UniversityRanking Based On Selection:14* Total H Index RankingsRankings
6,507World Rank
68Country Rank
15UniversityRanking Based On Selection:15Engineering & Technology / Energy Engineering
perovskite solar cells | perovskite LEDs | organic solar cells | organic electronicH-Index Metrics
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H-Index111
-
i10 Index286
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Citation Counts48,820
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* Total H Index RankingsRankings
7,186World Rank
74Country Rank
16UniversityRanking Based On Selection:16* Total H Index RankingsRankings
7,303World Rank
77Country Rank
17UniversityRanking Based On Selection:17* Total H Index RankingsRankings
8,094World Rank
84Country Rank
18UniversityRanking Based On Selection:18* Total H Index RankingsRankings
8,651World Rank
89Country Rank
19UniversityRanking Based On Selection:19* Total H Index RankingsRankings
8,938World Rank
94Country Rank
20UniversityRanking Based On Selection:20Engineering & Technology / Metallurgical & Materials Engineering
Photonics | Electronics | Solar Fuels | Flexible ElectronicH-Index Metrics
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H-Index102
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i10 Index309
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Citation Counts36,212
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* Total H Index RankingsRankings
9,066World Rank
96Country Rank
21UniversityRanking Based On Selection:21Engineering & Technology / Nanoscience and Nanotechnology
nanoporous material | Supercapacitor | catalytiH-Index Metrics
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H-Index102
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i10 Index394
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Citation Counts44,652
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* Total H Index RankingsRankings
9,632World Rank
101Country Rank
22UniversityRanking Based On Selection:22Engineering & Technology / Electrical & Electronic Engineering
Integrated Optics | Photonics Technology | TerahertH-Index Metrics
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H-Index100
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i10 Index206
-
Citation Counts43,055
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* Total H Index RankingsRankings
9,697World Rank
105Country Rank
23UniversityRanking Based On Selection:23* Total H Index RankingsRankings
10,436World Rank
112Country Rank
24UniversityRanking Based On Selection:24Engineering & Technology / Mechanical Engineering
Experimental mechanics | Residual stress | Mechanical Properties | Metallurgy | 4D printinH-Index Metrics
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H-Index98
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i10 Index503
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Citation Counts51,127
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* Total H Index RankingsRankings
11,444World Rank
126Country Rank
25UniversityRanking Based On Selection:25Engineering & Technology / Industrial & Manufacturing Engineering
reliability engineering | quality control | industrial engineering | industrial statistics | software reliabilitH-Index Metrics
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H-Index96
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i10 Index471
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Citation Counts37,058
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