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Researcher · National Institute for Environmental Studies · Japan

Tomoki Hirayama

Tomoki Hirayama publishes mostly in Electrical and Electronic Engineering, Economics and Econometrics and Polymers and Plastics, on topics such as Photonic and Optical Devices, Organic Electronics and Photovoltaics and Conducting polymers and applications.

OpenAlex
World rank
#6,253,943
of 7,710,434 ranked researchers
Rank in Japan
#242,409
of 383,136
Works
16
Citations
49
Citations per work
3.1
h-index
4
i10-index 2Top 94% in Electrical and Electronic Engineering
Tomoki Hirayama

What does Tomoki Hirayama research?

Tomoki Hirayama's work is mostly in Engineering (37%), Energy (9%), Materials Science (9%).

Physical Sciences: 11 works · 69.8% of their workEngineering: 6 works · 37.2% of their workElectrical and Electronic Engineering: 6 works · 37.2% of their workEnergy: 1 works · 9.3% of their workRenewable Energy, Sustainability and the Environment: 1 works · 9.3% of their workMaterials Science: 1 works · 9.3% of their workPolymers and Plastics: 1 works · 9.3% of their workPhysics and Astronomy: 1 works · 9.3% of their workAtomic and Molecular Physics, and Optics: 1 works · 9.3% of their workComputer Science: 1 works · 4.7% of their workArtificial Intelligence: 1 works · 4.7% of their workEverything else: 3 works · 20.9% of their workSocial Sciences: 1 works · 9.3% of their workEconomics, Econometrics and Finance: 1 works · 9.3% of their workEconomics and Econometrics: 1 works · 9.3% of their workTHEIR WORKTomoki Hirayama16works
Physical Sciences70%Social Sciences9%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Engineering637.2%
    2. Energy19.3%
    3. Materials Science19.3%
    4. Physics and Astronomy19.3%
    5. Computer Science14.7%
  2. Everything else320.9%
    1. Economics, Econometrics and Finance19.3%
  1. 1Electrical and Electronic Engineering37% of their works
  2. 2Economics and Econometrics9% of their works
  3. 3Polymers and Plastics9% of their works
  4. 4Atomic and Molecular Physics, and Optics9% of their works
  5. 5Renewable Energy, Sustainability and the Environment9% of their works
  6. 6Artificial Intelligence5% of their works

Research topics

Which keywords describe Tomoki Hirayama's research?

The keywords of their largest research topics: Bulk Heterojunction, Conducting Polymers, Conjugated Polymers, Optical Modulators, Polyaniline, Silicon Photonics, Energy Efficiency and Optical Frequency Combs.

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 16 words, with their numbers
  1. Bulk Heterojunction41 topic
  2. Conducting Polymers41 topic
  3. Conjugated Polymers41 topic
  4. Optical Modulators41 topic
  5. Polyaniline41 topic
  6. Silicon Photonics41 topic
  7. Energy Efficiency31 topic
  8. Optical Frequency Combs31 topic
  9. Organometal Halide Perovskites31 topic
  10. Perovskite Solar Cells31 topic
  11. Rebound Effect31 topic
  12. Ultrafast Lasers31 topic
  13. Climate Change21 topic
  14. Coherent Detection21 topic
  15. Economic Impacts21 topic
  16. Optical Fiber21 topic

Where does Tomoki Hirayama work?

Tomoki Hirayama's main affiliation in the publication record is National Institute for Environmental Studies, Japan.

How many publications and citations does Tomoki Hirayama have?

OpenAlex counts 16 works and 49 citations for Tomoki Hirayama, an h-index of 4, ranking #6,253,943 of 7,710,434 researchers worldwide on the quality 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 have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

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