Ahmad Umar
Impact in
- Bioengineering top 0.01%
- Analytical Chemistry and Sensors
-
- Advanced Photocatalysis Techniques
Papers in
-
- ZnO doping and properties 159
-
- Gas Sensing Nanomaterials and Sensors 201
- Electrochemical sensors and biosensors 111
- Co-authors
- Yoon‐Bong Hahn (64 shared papers)Rajesh Kumar (70 shared papers)Sushil Kumar Kansal (50 shared papers)S.K. Mehta (56 shared papers)Sotirios Baskoutas (119 shared papers)Girish Kumar (9 shared papers)Ahmed A. Ibrahim (137 shared papers)Mohammed M. Rahman (13 shared papers)
- Journals
- Journal of Nanoscience and Nanotechnology (84 papers)Science of Advanced Materials (70 papers)Ceramics International (38 papers)Journal of Alloys and Compounds (27 papers)Journal of Nanoelectronics and Optoelectronics (21 papers)
- Partner nations
- Saudi ArabiaIndiaUnited States
In The Last Decade
Ahmad Umar
822 papers receiving 31.6k citations
Ahmad Umar's Hit Papers
Peers
Comparison fields: 5 of 171
- Bioengineering 3.7k
- Renewable Energy, Sustainability and the Environment 7.3k
- Electrochemistry 2.3k
- Materials Chemistry 16.6k
- Electrical and Electronic Engineering 15.3k
Countries citing papers authored by Ahmad Umar
This map shows the geographic impact of Ahmad Umar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ahmad Umar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ahmad Umar more than expected).
Fields of papers citing papers by Ahmad Umar
This network shows the impact of papers produced by Ahmad Umar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ahmad Umar. The network helps show where Ahmad Umar may publish in the future.
Co-authors
The 25 scholars most cited alongside Ahmad Umar, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 840 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Zinc Oxide Nanostructures for NO2 Gas–Sensor Applications: A Review Hit paper breakdown → | 2014 | 762 |
| 2 | Hierarchical porous carbon aerogel derived from bagasse for high performance supercapacitor electrode Hit paper breakdown → | 2014 | 586 |
| 3 | Biomass-derived nitrogen-doped carbon quantum dots: highly selective fluorescent probe for detecting Fe3+ ions and tetracyclines Hit paper breakdown → | 2018 | 570 |
| 4 | Antimicrobial properties of ZnO nanomaterials: A review Hit paper breakdown → | 2016 | 489 |
| 5 | Hierarchical SnO2 Nanostructures Made of Intermingled Ultrathin Nanosheets for Environmental Remediation, Smart Gas Sensor, and Supercapacitor Applications Hit paper breakdown → | 2014 | 479 |
| 6 | Zinc oxide nanonail based chemical sensor for hydrazine detection Hit paper breakdown → | 2007 | 474 |
| 7 | 2015 | 299 | |
| 8 | Nanomaterials-based biosensor and their applications: A review Hit paper breakdown → | 2023 | 257 |
| 9 | 2019 | 256 | |
| 10 | Metal Oxide Nanostructures and Their Applications | 2009 | 246 |
| 11 | 2013 | 244 | |
| 12 | 2007 | 241 | |
| 13 | 2018 | 240 | |
| 14 | 2017 | 239 | |
| 15 | 2013 | 234 | |
| 16 | 2008 | 217 | |
| 17 | 2018 | 216 | |
| 18 | 2006 | 212 | |
| 19 | 2014 | 206 | |
| 20 | 2016 | 205 |
About Ahmad Umar
Ahmad Umar is a scholar working on Materials Chemistry, Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment, Biomedical Engineering and Electronic, Optical and Magnetic Materials, having authored 840 papers that have together received 32.2k indexed citations. Recurring topics across this work include Gas Sensing Nanomaterials and Sensors (201 papers), ZnO doping and properties (159 papers), Advanced Photocatalysis Techniques (111 papers), Analytical Chemistry and Sensors (111 papers), Electrochemical sensors and biosensors (111 papers), Electrochemical Analysis and Applications (58 papers), Supercapacitor Materials and Fabrication (55 papers) and Ga2O3 and related materials (53 papers). The work is most often cited by research in Bioengineering (3.7k citations), Renewable Energy, Sustainability and the Environment (7.3k citations), Electrochemistry (2.3k citations), Materials Chemistry (16.6k citations) and Electrical and Electronic Engineering (15.3k citations). Ahmad Umar has collaborated with scholars based in Saudi Arabia, India and United States. Frequent co-authors include Yoon‐Bong Hahn, Rajesh Kumar, Sushil Kumar Kansal, S.K. Mehta, Sotirios Baskoutas, Girish Kumar, Ahmed A. Ibrahim, Mohammed M. Rahman, Savita Chaudhary and A. Al‐Hajry. Their work appears in journals such as Journal of Nanoscience and Nanotechnology, Science of Advanced Materials, Ceramics International, Journal of Alloys and Compounds and Journal of Nanoelectronics and Optoelectronics.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.