Ahmad Umar
Ahmad Umar publishes mostly in Materials Chemistry, Electrical and Electronic Engineering and Renewable Energy, Sustainability and the Environment, on topics such as Gas Sensing Nanomaterials and Sensors, Analytical Chemistry and Sensors and Advanced Photocatalysis Techniques.
- World rank
- #376,954 of 1,633,909 ranked researchers
- Rank in Saudi Arabia
- #534 of 3,359
- Works
- 178
- Citations
- 944
- Citations per work
- 5.3
What does Ahmad Umar research?
Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.
- 1Materials Chemistry20% of their works
- 2Electrical and Electronic Engineering19% of their works
- 3Renewable Energy, Sustainability and the Environment8% of their works
- 4Biomedical Engineering7% of their works
- 5Electronic, Optical and Magnetic Materials7% of their works
- 6Bioengineering5% of their works
Research topics
Which keywords describe Ahmad Umar's research?
The keywords of their largest research topics: Nanomaterials, Nanostructures, Semiconductors, Graphene, Gas Sensors, Metal Oxide, Visible Light and Water Splitting.
- Gallium Oxide
- Carbon-Based Materials
- Photocatalysis
- Electrochemical Biosensors
- Photocatalyst
- Ferromagnetism
- Ion-Selective Electrodes
- Photodetectors
- Water Splitting
- Metal Oxide
- Graphene
- Nanostructures
- Nanomaterials
- Semiconductors
- Gas Sensors
- Visible Light
- Field-Effect Transistors
- Semiconductor
- Optical Sensors
- Hydrogen Production
- Zinc Oxide
- Glucose Sensors
- Solar Cells
- Electrochemical Capacitors
- Ultrawide Bandgap
Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.
All 25 words, with their numbers
- Nanomaterials565 topics
- Nanostructures403 topics
- Semiconductors312 topics
- Graphene263 topics
- Gas Sensors211 topic
- Metal Oxide211 topic
- Visible Light192 topics
- Water Splitting192 topics
- Field-Effect Transistors182 topics
- Photodetectors172 topics
- Semiconductor172 topics
- Ion-Selective Electrodes111 topic
- Optical Sensors111 topic
- Ferromagnetism101 topic
- Hydrogen Production101 topic
- Photocatalyst101 topic
- Zinc Oxide101 topic
- Electrochemical Biosensors91 topic
- Glucose Sensors91 topic
- Photocatalysis91 topic
- Solar Cells91 topic
- Carbon-Based Materials71 topic
- Electrochemical Capacitors71 topic
- Gallium Oxide71 topic
- Ultrawide Bandgap71 topic
Where does Ahmad Umar work?
Ahmad Umar's main affiliation in the publication record is Najran University, Saudi Arabia.
How many publications and citations does Ahmad Umar have?
Science Explorer counts 178 works and 944 citations for Ahmad Umar, ranking #376,954 of 1,633,909 researchers worldwide on the composite score.
Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.
Papers, co-authors, who cited this work and researchers on the nearest topics are in the interactive view on the map. Is this your page? Request a correction or removal.