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Company · Iserlohn · Germany

Kirchhoff (Germany)

In research, Kirchhoff (Germany) stands highest in Physical Sciences (#2,864 of 10,670 worldwide), 2022-now. Relative to its size it is most specialised in Physics and Astronomy (Physics and Astronomy is 9.4× its share of world research).

kirchhoff-automotive.comROR OpenAlex
World rank, 2022-now
#9,753
of 22,385 · #3,031 all time
Rank in Germany
#322
of 795
Research works
831
▲ 5% vs 2018-21
Citations
19k
23.4 per fractional work
Top-10% rate
7.8%
all institutions 10.0%
vs its own fields
1.04×
1.00× is exactly expected
Open access
33%
world 40%
International
28%
world 18%
Kirchhoff (Germany)

What is Kirchhoff (Germany) known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #2,864 of 10,670 8.3%112 #1431

Each strip is that field's whole ranked pool, with the notch where Kirchhoff (Germany) sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Kirchhoff (Germany) work in?

In 2022-now, 79% of research at Kirchhoff (Germany) is in Physical Sciences, 13% in Life Sciences. Its largest fields are Engineering (31%), Physics and Astronomy (21%), Materials Science (12%). It does 2.0× the world's share of Physical Sciences.

Physical Sciences: 119 fractional works · 78.9% of its workEngineering: 47 fractional works · 31.1% of its workElectrical and Electronic Engineering: 34 fractional works · 22.6% of its workBiomedical Engineering: 6 fractional works · 4.1% of its workMechanical Engineering: 2 fractional works · 1.6% of its workMechanics of Materials: 1 fractional works · 0.9% of its workComputational Mechanics: 1 fractional works · 0.4% of its workControl and Systems Engineering: 0 fractional works · 0.3% of its workCivil and Structural Engineering: 0 fractional works · 0.3% of its workAerospace Engineering: 0 fractional works · 0.3% of its workBuilding and Construction: 0 fractional works · 0.2% of its workIndustrial and Manufacturing Engineering: 0 fractional works · 0.2% of its workPhysics and Astronomy: 31 fractional works · 20.9% of its workAtomic and Molecular Physics, and Optics: 14 fractional works · 9.3% of its workCondensed Matter Physics: 8 fractional works · 5.5% of its workNuclear and High Energy Physics: 4 fractional works · 3.0% of its workAstronomy and Astrophysics: 2 fractional works · 1.4% of its workRadiation: 1 fractional works · 1.0% of its workInstrumentation: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMaterials Science: 19 fractional works · 12.4% of its workMaterials Chemistry: 9 fractional works · 5.8% of its workElectronic, Optical and Magnetic Materials: 6 fractional works · 4.0% of its workPolymers and Plastics: 3 fractional works · 1.9% of its workSurfaces, Coatings and Films: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workComputer Science: 8 fractional works · 5.3% of its workArtificial Intelligence: 6 fractional works · 4.3% of its workComputational Theory and Mathematics: 0 fractional works · 0.3% of its workComputer Networks and Communications: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workChemistry: 7 fractional works · 4.4% of its workSpectroscopy: 4 fractional works · 2.7% of its workOrganic Chemistry: 1 fractional works · 0.8% of its workAnalytical Chemistry: 1 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEnvironmental Science: 5 fractional works · 3.2% of its workEnvironmental Chemistry: 2 fractional works · 1.5% of its workHealth, Toxicology and Mutagenesis: 2 fractional works · 1.1% of its workGlobal and Planetary Change: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 1 fractional works · 1.0% of its workAtmospheric Science: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.3% of its workChemical Engineering: 1 fractional works · 0.4% of its workEnergy: 0 fractional works · 0.3% of its workRenewable Energy, Sustainability and the Environment: 0 fractional works · 0.3% of its workMathematics: 0 fractional works · 0.1% of its workLife Sciences: 20 fractional works · 13.1% of its workBiochemistry, Genetics and Molecular Biology: 10 fractional works · 6.8% of its workMolecular Biology: 7 fractional works · 4.3% of its workBiophysics: 2 fractional works · 1.2% of its workStructural Biology: 1 fractional works · 0.6% of its workBiotechnology: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workAgricultural and Biological Sciences: 5 fractional works · 3.3% of its workEcology, Evolution, Behavior and Systematics: 2 fractional works · 1.2% of its workFood Science: 2 fractional works · 1.0% of its workPlant Science: 1 fractional works · 0.6% of its workAgronomy and Crop Science: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNeuroscience: 4 fractional works · 2.8% of its workCognitive Neuroscience: 2 fractional works · 1.6% of its workCellular and Molecular Neuroscience: 2 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.0% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workImmunology and Microbiology: 0 fractional works · 0.1% of its workHealth Sciences: 6 fractional works · 4.1% of its workMedicine: 6 fractional works · 3.8% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.8% of its workRadiology, Nuclear Medicine and Imaging: 1 fractional works · 0.6% of its workDermatology: 1 fractional works · 0.5% of its workPulmonary and Respiratory Medicine: 1 fractional works · 0.4% of its workNephrology: 0 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 1.3% of its workNursing: 0 fractional works · 0.1% of its workHealth Professions: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.0% of its workSocial Sciences: 6 fractional works · 3.8% of its workSocial Sciences: 3 fractional works · 1.8% of its workLaw: 2 fractional works · 1.2% of its workPolitical Science and International Relations: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workBusiness, Management and Accounting: 2 fractional works · 1.3% of its workOrganizational Behavior and Human Resource Management: 1 fractional works · 0.6% of its workStrategy and Management: 1 fractional works · 0.4% of its workManagement of Technology and Innovation: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.3% of its workPsychology: 0 fractional works · 0.2% of its workClinical Psychology: 0 fractional works · 0.2% of its workDecision Sciences: 0 fractional works · 0.1% of its workArts and Humanities: 0 fractional works · 0.1% of its workALL ITS WORKKirchhoff(Germany)150fractional works, 2022-now
Life Sciences13%Physical Sciences79%Health Sciences4%Social Sciences4%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 25 fields, with their numbers
    1. Engineering4731.1%
    2. Physics and Astronomy3120.9%
    3. Materials Science1912.4%
    4. Computer Science85.3%
    5. Chemistry74.4%
    6. Environmental Science53.2%
    7. Earth and Planetary Sciences11.0%
    8. Chemical Engineering10.4%
    9. Energy00.3%
    10. Mathematics00.1%
    1. Biochemistry, Genetics and Molecular Biology106.8%
    2. Agricultural and Biological Sciences53.3%
    3. Neuroscience42.8%
    4. Pharmacology, Toxicology and Pharmaceutics00.1%
    5. Immunology and Microbiology00.1%
    1. Medicine63.8%
    2. Nursing00.1%
    3. Health Professions00.1%
    4. Veterinary00.0%
    1. Social Sciences31.8%
    2. Business, Management and Accounting21.3%
    3. Economics, Econometrics and Finance00.3%
    4. Psychology00.2%
    5. Decision Sciences00.1%
    6. Arts and Humanities00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Kirchhoff (Germany) specialise in?

Where its research is concentrated relative to its size: Physics and Astronomy takes 9.4× the share of its output that it takes of world research.

  1. Physics and AstronomyField · 31.4 works9.4×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.70× its world share, 5 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.28× its world share, 10 worksBiochemistry, Geneti…Immunology and Microbiology: 0.06× its world share, 0 worksImmunology and Micro…Neuroscience: 1.74× its world share, 4 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.26× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 1.01× its world share, 0 worksChemical EngineeringChemistry: 2.81× its world share, 7 worksChemistryComputer Science: 0.68× its world share, 8 worksComputer ScienceEarth and Planetary Sciences: 0.61× its world share, 1 worksEarth and Planetary …Energy: 0.32× its world share, 0 worksEnergyEngineering: 2.07× its world share, 47 worksEngineeringEnvironmental Science: 0.65× its world share, 5 worksEnvironmental ScienceMaterials Science: 3.54× its world share, 19 worksMaterials ScienceMathematics: 0.09× its world share, 0 worksMathematicsPhysics and Astronomy: 9.38× its world share, 31 worksPhysics and AstronomyHealth Professions: 0.04× its world share, 0 worksHealth ProfessionsMedicine: 0.20× its world share, 6 worksMedicineNursing: 0.28× its world share, 0 worksNursingVeterinary: 0.33× its world share, 0 worksVeterinaryArts and Humanities: 0.03× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.41× its world share, 2 worksBusiness, Management…Decision Sciences: 0.11× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.14× its world share, 0 worksEconomics, Econometr…Psychology: 0.07× its world share, 0 worksPsychologySocial Sciences: 0.14× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 9.4×. Every wedge is a field page.

All 25 fields, with their numbers
  1. Physics and Astronomy9.38×31 works
  2. Materials Science3.54×19 works
  3. Chemistry2.81×7 works
  4. Engineering2.07×47 works
  5. Neuroscience1.74×4 works
  6. Biochemistry, Genetics and Molecular Biology1.28×10 works
  7. Chemical Engineering1.01×0 works
  8. Agricultural and Biological Sciences0.70×5 works
  9. Computer Science0.68×8 works
  10. Environmental Science0.65×5 works
  11. Earth and Planetary Sciences0.61×1 works
  12. Business, Management and Accounting0.41×2 works
  13. Veterinary0.33×0 works
  14. Energy0.32×0 works
  15. Nursing0.28×0 works
  16. Pharmacology, Toxicology and Pharmaceutics0.26×0 works
  17. Medicine0.20×6 works
  18. Economics, Econometrics and Finance0.14×0 works
  19. Social Sciences0.14×3 works
  20. Decision Sciences0.11×0 works
  21. Mathematics0.09×0 works
  22. Psychology0.07×0 works
  23. Immunology and Microbiology0.06×0 works
  24. Health Professions0.04×0 works
  25. Arts and Humanities0.03×0 works

Who are the top researchers at Kirchhoff (Germany)?

Ranked on the quality score, Sascha Liedtke, Walter Bittner and Klaus Rainer Kirchhoff lead among researchers whose main affiliation is Kirchhoff (Germany).

  1. 1 Sascha Liedtke Germany · #2,175,621 worldwide 521 citations · 17 works
  2. 2 Walter Bittner Germany · #2,539,849 worldwide 18 citations · 32 works
  3. 3 Klaus Rainer Kirchhoff Germany · #2,576,382 worldwide 162 citations · 36 works
  4. 4 Philipp Ranitzsch Germany · #3,790,601 worldwide 101 citations · 20 works
  5. 5 Joseph Müller-Blattau Germany · #3,999,284 worldwide 46 citations · 41 works
  6. 6 Claudia Mentel Germany · #4,431,235 worldwide 24 citations · 17 works
  7. 7 Ulrich Oechsner Germany · #5,154,150 worldwide 147 citations · 31 works
All ranked researchers at Kirchhoff (Germany)

What are the most cited papers from Kirchhoff (Germany)?

The most cited paper from Kirchhoff (Germany) is "The Astropy Project: Building an Open-science Project and Status of the v2.0 Core Package *" (Adrian M. Price-Whelan et al., 2018), with 7,690 citations. Next come "The ATLAS Experiment at the CERN Large Hadron Collider" (4,271) and "2014 ESC Guidelines on the diagnosis and management of acute pulmonary embolism" (3,165).

Most cited papers
#PaperReleasedCitations
1 The Astropy Project: Building an Open-science Project and Status of the v2.0 Core Package * Adrian M. Price-Whelan et al. · The Astronomical Journal Open access140 authors 23 Aug 2018 7,690
2 The ATLAS Experiment at the CERN Large Hadron Collider G. Aad et al. · Journal of Instrumentation Open access2,047 authors 14 Aug 2008 4,271
3 2014 ESC Guidelines on the diagnosis and management of acute pulmonary embolism Authors Task Force Members et al. · European Heart Journal Open access 29 Aug 2014 3,165
4 Lab-on-a-chip: microfluidics in drug discovery Petra Stephanie Dittrich, A. Manz · Nature Reviews Drug Discovery Review Mar 2006 1,850
5 Neuromorphic Silicon Neuron Circuits Giacomo Indiveri, B. Linares-Barranco, Tara Julia Hamilton et al. · Frontiers in Neuroscience Open access 2011 1,844
All 60 most cited papers, with filters and sorting

Which keywords describe research at Kirchhoff (Germany)?

By fractional works in 2022-now, weighted toward what it does more of than the world: Semiconductor Lasers, Nanowires, Semiconductors, Biosensors, Band Parameters, Semiconductor, Raman Lasers and Optical Modulators.

▲ more of its work than of the world's◆ about the world's share▼ less than the world's

Size is fractional works in 2022-now in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Semiconductor Lasers10▲ 99×2 topics
  2. Nanowires10▲ 46×3 topics
  3. Semiconductors8▲ 19×5 topics
  4. Biosensors8▲ 11×9 topics
  5. Band Parameters8▲ 100×2 topics
  6. Machine Learning8▲ 1.57×15 topics
  7. Semiconductor7▲ 15×7 topics
  8. Raman Lasers7▲ 43×2 topics
  9. Optical Modulators7▲ 32×3 topics
  10. Silicon Photonics7▲ 44×2 topics
  11. Integrated Circuits6▲ 30×3 topics
  12. Thin Films6▲ 22×6 topics
  13. Field-Effect Transistors6▲ 27×4 topics
  14. Microcavities6▲ 40×2 topics
  15. GaN6▲ 118×2 topics
  16. Nanophotonic Waveguides6▲ 46×1 topic
  17. Whispering Gallery Mode6▲ 46×1 topic
  18. Neuromorphic Computing6▲ 35×2 topics
  19. Optical Interconnects6▲ 113×1 topic
  20. Vertical-Cavity Surface-Emitting Lasers (VCSELs)6▲ 113×1 topic
  21. Crystal Growth6▲ 14×6 topics
  22. Light-Emitting Diodes6▲ 25×2 topics
  23. Solid-State Lighting5▲ 46×2 topics
  24. AlGaN/GaN HEMTs5▲ 115×1 topic
  25. III-Nitrides5▲ 115×1 topic
  26. Photodetectors5▲ 44×2 topics
  27. Non-Volatile Memory5▲ 35×2 topics
  28. Nonlinear Dynamics4▲ 13×2 topics
  29. Synaptic Plasticity4▲ 13×2 topics
  30. Nanostructures4▲ 7.0×10 topics
  31. Memristor4▲ 34×1 topic
  32. Neuromorphic Photonics4▲ 84×1 topic
  33. Photonic Reservoir Computing4▲ 84×1 topic
  34. Resistive Switching4▲ 34×1 topic
  35. Power Devices4▲ 41×2 topics
  36. Epitaxial Growth4▲ 56×2 topics
  37. Doping4▲ 26×2 topics
  38. Gallium Oxide4▲ 90×1 topic
  39. Ultrawide Bandgap4▲ 90×1 topic
  40. Photovoltaics3▲ 14×4 topics

Which research topics does Kirchhoff (Germany) publish most on?

By volume in 2022-now: Photonic and Optical Devices, Semiconductor Lasers and Optical Devices, GaN-based semiconductor devices and materials and Advanced Memory and Neural Computing.

Photonic and Optical Devices: 6 fractional worksSemiconductor Lasers and Optical Devices: 6 fractional worksGaN-based semiconductor …5GaN-based semiconductor devices and materials: 5 fractional worksAdvanced Memory and Neur…4Advanced Memory and Neural Computing: 4 fractional worksNeural Networks and Reservoir Computing: 4 fractional worksGa2O3 and related materials: 4 fractional worksSemiconductor Quantum St…3Semiconductor Quantum Structures and Devices: 3 fractional worksAdvanced Fiber Laser Technologies: 2 fractional worksOptical Network Technologies: 2 fractional worksFerroelectric and Negative Capacitance Devices: 2 fractional works
Electrical and Electronic EngineeringCondensed Matter PhysicsArtificial IntelligenceElectronic, Optical and Magnetic Materials1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Photonic and Optical Devices Electrical and Electronic Engineering 6 works
  2. 2 Semiconductor Lasers and Optical Devices Electrical and Electronic Engineering 6 works
  3. 3 GaN-based semiconductor devices and materials Condensed Matter Physics 5 works
  4. 4 Advanced Memory and Neural Computing Electrical and Electronic Engineering 4 works
  5. 5 Neural Networks and Reservoir Computing Artificial Intelligence 4 works
  6. 6 Ga2O3 and related materials Electronic, Optical and Magnetic Materials 4 works
  7. 7 Semiconductor Quantum Structures and Devices Atomic and Molecular Physics, and Optics 3 works
  8. 8 Advanced Fiber Laser Technologies Atomic and Molecular Physics, and Optics 2 works
  9. 9 Optical Network Technologies Electrical and Electronic Engineering 2 works
  10. 10 Ferroelectric and Negative Capacitance Devices Electrical and Electronic Engineering 2 works

How open and international is its research?

Against the world's own shares: the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available33.0%not open67.0%

World: 40% of research is openly available.

with international co-authors28.4%domestic only71.6%

World: 18% is written across borders.

How has Kirchhoff (Germany)'s research output changed?

Output in 2022-2025 was 5% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

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 Kirchhoff (Germany) as a percentage of every work published that year, 0.00068% in 2024.

still counting0.0010%0.0020%0.0030%Kirchhoff (Germany)0.00039% in 202519801990200020102020

Fractional works of Kirchhoff (Germany) 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, against all institutions in the same year.

still counting10%20%all institutions10.0% in 2025Kirchhoff (Germany)4.5% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 17.5% in 2005.

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Kirchhoff (Germany) on Science Explorer

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