Photocathodes and Microchannel Plates
Photocathodes and Microchannel Plates is a research topic within Biomedical Engineering. Science Explorer counts 8.6k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.
This cluster of papers focuses on the development and optimization of high-efficiency photocathodes for electron sources, with a particular emphasis on materials such as GaN and GaAs. The research covers topics such as quantum efficiency, negative electron affinity, surface photovoltage, microchannel plates, spin polarization, and the application of these photocathodes in ultraviolet detectors.
- Photocathodes
- Electron Sources
- Quantum Efficiency
- Negative Electron Affinity
- GaN
- GaAs
- Surface Photovoltage
- Microchannel Plates
- Spin Polarization
- Ultraviolet Detectors
- Research works
- 8.6k fractional, since 1950
- In the world top 10%
- 862 per year above
- Top-10% rate
- 10.0% share of its works in the world top 10%
- Growth, 2018-21 → 2022-25
- +14% the tick is no change
- Largest producer
China
40% of the 10 largest, 2022-now
Which countries lead Photocathodes and Microchannel Plates research?
By volume, China and the United States publish the most (389 and 252 works in 2022-now).
By volume, 2022-now
- 1
China
389 works
- 2
United States
252 works
- 3
Japan
67 works
- 4
Germany
58 works
- 5
Russia
54 works
- 6
France
38 works
- 7
Italy
36 works
- 8
India
30 works
- 9
United Kingdom
27 works
- 10
South Korea
22 works
How concentrated that is
The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.
Shares of the rows listed above, not of the whole node.
Which institutions lead Photocathodes and Microchannel Plates research?
By volume in 2022-now, Chinese Academy of Sciences publishes the most Photocathodes and Microchannel Plates research, followed by Nanjing University of Science and Technology and Russian Academy of Sciences.
By volume, 2022-now
- 1
Chinese Academy of SciencesChina
72 works
- 2
Nanjing University of Science and TechnologyChina
31 works
- 3
Russian Academy of SciencesRussia
26 works
- 4
Centre National de la Recherche ScientifiqueFrance
19 works
- 5
University of Chinese Academy of SciencesChina
17 works
- 6
Helmholtz Association of German Research CentresGermany
16 works
- 7
Harvard UniversityUnited States
15 works
- 8
University of Science and Technology of ChinaChina
12 works
- 9
Nagoya UniversityJapan
10 works
- 10
China National Building Materials Group (China)China
9 works
Who are the leading researchers in Photocathodes and Microchannel Plates?
The most-cited researchers publishing on Photocathodes and Microchannel Plates include M. Weber, Kenji Watanabe and Takashi Taniguchi.
- 1
M. Weber
Israel
267k citations
- 2
Kenji Watanabe
Japan
237k citations
- 3
Takashi Taniguchi
Japan
227k citations
- 4
Stephen M. Gibson
France
182k citations
- 5
Κ. Peters
France
169k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Photocathodes and Microchannel Plates research done?
The largest centres of Photocathodes and Microchannel Plates research in 2022-now are Beijing (China), Nanjing (China), Xi'an (China) and Moscow (Russia).
Where is the best place to study Photocathodes and Microchannel Plates?
Among universities, judged by research, Nagoya University, University of Chinese Academy of Sciences and University of Science and Technology of China score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.
One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | Nagoya UniversityJapan |
65.4 | 9.4% | 20.0× | 10 | +15.3% |
| 2 | University of Chinese Academy of SciencesChina |
65.1 | 10.9% | 10.8× | 17 | +56.6% |
| 3 | University of Science and Technology of ChinaChina |
55.0 | 10.2% | 10.7× | 12 | +102.5% |
| 4 | Nanjing University of Science and TechnologyChina |
52.0 | 4.2% | 38.8× | 31 | +2.6% |
| 5 | Xi'an Jiaotong UniversityChina |
32.4 | 9.5% | 4.9× | 8 | +118.3% |
| 6 | Harvard UniversityUnited States |
27.8 | 0.3% | 4.7× | 14 | - |
Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.
Every institution in Photocathodes and Microchannel Plates, country by countryIs Photocathodes and Microchannel Plates research growing?
Output in 2022-2025 was 14% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Photocathodes and Microchannel Plates.
The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.
Its share of all research
Growing output can still be a shrinking share: all of science grows. This is Photocathodes and Microchannel Plates as a percentage of every work published that year, 0.0040% in 2024.
Fractional works of Photocathodes and Microchannel Plates over all fractional works that year. How the balance of science has shifted.
How much of it reaches the world top 10%
Year by year.
Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.
Which topics inside it are moving
Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.
Discussion
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