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Research facility · Freiburg im Breisgau · Germany

Fraunhofer Institute for Solar Energy Systems

In research, Fraunhofer Institute for Solar Energy Systems stands highest in Engineering (#1,450 of 6,636 worldwide), Physical Sciences (#3,596 of 12,888 worldwide) and Electrical and Electronic Engineering (#754 of 2,318 worldwide), 2022–2025. Relative to its size it is most specialised in Renewable Energy, Sustainability and the Environment, Energy and Electrical and Electronic Engineering — Renewable Energy, Sustainability and the Environment is 14.9× its share of world research.

ise.fraunhofer.de/enROR OpenAlex
World rank, 2022–2025
#6,317
of 28,054 · #2,804 all time
Rank in Germany
#264
of 1,178
Research works
3.1k
▼ 14% vs 2013–17
Citations
99k
31.5 per fractional work
Top-10% rate
14.2%
record average 16.5%
Open access
41%
world 28%

What is Fraunhofer Institute for Solar Energy Systems known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
EngineeringField #1,450 of 6,636 12.8%319 #1031
Physical SciencesDomain #3,596 of 12,888 13.8%491 #1791
Electrical and Electronic EngineeringSubfield #754 of 2,318 12.2%228 #482
EnergyField #630 of 694 13.6%65 #494

Each strip is that field’s whole ranked pool, with the notch where Fraunhofer Institute for Solar Energy Systems 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 world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Engineering#1,031 #1,450
  2. Physical Sciences#1,791 #3,596
  3. Electrical and Electronic Engineering#482 #754
  4. Energy#494 #630
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Fraunhofer Institute for Solar Energy Systems specialise in?

Where its research is concentrated relative to its size: Renewable Energy, Sustainability and the Environment takes 14.9× the share of its output that it takes of world research.

  1. Renewable Energy, Sustainability and the EnvironmentSubfield · 57.8 works15×
  2. EnergyField · 64.8 works14×
  3. Electrical and Electronic EngineeringSubfield · 227.7 works13×
  4. Atomic and Molecular Physics, and OpticsSubfield · 20.5 works5.7×
  5. EngineeringField · 319.4 works4.2×
← 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: 0.11× its world share, 3 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.06× its world share, 2 worksBiochemistry, Geneti…Neuroscience: 0.01× its world share, 0 worksNeuroscienceChemical Engineering: 2.76× its world share, 5 worksChemical EngineeringChemistry: 0.34× its world share, 3 worksChemistryComputer Science: 0.31× its world share, 12 worksComputer ScienceEarth and Planetary Sciences: 0.14× its world share, 1 worksEarth and Planetary …Energy: 14.00× its world share, 65 worksEnergyEngineering: 4.23× its world share, 319 worksEngineeringEnvironmental Science: 1.17× its world share, 29 worksEnvironmental ScienceMaterials Science: 1.89× its world share, 33 worksMaterials SciencePhysics and Astronomy: 2.05× its world share, 23 worksPhysics and AstronomyHealth Professions: 0.05× its world share, 1 worksHealth ProfessionsMedicine: 0.01× its world share, 1 worksMedicineNursing: 0.03× its world share, 0 worksNursingBusiness, Management and Accounting: 0.07× its world share, 1 worksBusiness, Management…Decision Sciences: 0.01× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.27× its world share, 3 worksEconomics, Econometr…Social Sciences: 0.04× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Energy, 14.0×. Every wedge is a field page.

Who are the top researchers at Fraunhofer Institute for Solar Energy Systems?

Ranked on the composite score, A. Goetzberger, Wilhelm Warta and Stefan W. Glunz lead among researchers whose main affiliation is Fraunhofer Institute for Solar Energy Systems.

  1. 1 A. Goetzberger Germany · #17,478 worldwide 383 citations · 55 works
  2. 2 Wilhelm Warta Germany · #22,870 worldwide 562 citations · 74 works
  3. 3 Stefan W. Glunz Germany · #43,585 worldwide 864 citations · 124 works
  4. 4 Hans‐Martin Henning Germany · #66,587 worldwide 353 citations · 34 works
  5. 5 Frank Feldmann Germany · #69,492 worldwide 319 citations · 31 works
  6. 6 Martin Hermle Germany · #77,100 worldwide 653 citations · 100 works
  7. 7 G. Willeke Germany · #105,200 worldwide 204 citations · 34 works
  8. 8 Gerald Siefer Germany · #115,502 worldwide 307 citations · 40 works
  9. 9 V. Wittwer Germany · #125,802 worldwide 97 citations · 33 works
  10. 10 Markus Glatthaar Germany · #130,375 worldwide 209 citations · 33 works
All ranked researchers at Fraunhofer Institute for Solar Energy Systems

Which keywords describe research at Fraunhofer Institute for Solar Energy Systems?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Solar Cells, Renewable Energy, Efficiency, Photovoltaics, Crystalline, Passivation, Silicon and Solar Energy.

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

Size is fractional works in 2022–2025 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. Solar Cells97▲ 95×7 topics
  2. Renewable Energy92▲ 13×26 topics
  3. Efficiency84▲ 55×4 topics
  4. Photovoltaics73▲ 89×4 topics
  5. Crystalline52▲ 152×2 topics
  6. Passivation52▲ 629×1 topic
  7. Silicon52▲ 289×1 topic
  8. Solar Energy50▲ 31×5 topics
  9. High Efficiency35▲ 189×1 topic
  10. Multijunction Solar Cells35▲ 354×1 topic
  11. Energy Efficiency27▲ 5.8×18 topics
  12. Grid-Connected Inverters26▲ 72×2 topics
  13. Sustainability26▲ 2.1×20 topics
  14. Flexible Electronics25▲ 29×3 topics
  15. Maximum Power Point Tracking25▲ 98×1 topic
  16. Photovoltaic Arrays25▲ 98×1 topic
  17. Amorphous Oxide Semiconductors23▲ 219×1 topic
  18. Plasmonics23▲ 83×2 topics
  19. Thin-Film Transistors23▲ 219×1 topic
  20. Semiconductor23▲ 13×5 topics
  21. Semiconductors20▲ 13×5 topics
  22. Life Cycle Assessment20▲ 14×3 topics
  23. Crystal Growth19▲ 13×5 topics
  24. Light-Emitting Diodes19▲ 24×2 topics
  25. Greenhouse Gas Emissions18▲ 13×4 topics
  26. Energy Storage18▲ 5.5×11 topics
  27. Organometal Halide Perovskites18▲ 31×1 topic
  28. Perovskite Solar Cells18▲ 31×1 topic
  29. Phase Change Materials17▲ 37×2 topics
  30. Nanocrystals17▲ 13×4 topics
  31. Artificial Neural Networks17▲ 7.0×5 topics
  32. Recycling16▲ 8.4×5 topics
  33. Thermal Management16▲ 9.3×7 topics
  34. Photovoltaic Systems15▲ 35×2 topics
  35. Land Use14▲ 59×2 topics
  36. Smart Grid14▲ 7.5×7 topics
  37. Agrivoltaic Systems14▲ 168×1 topic
  38. Energy Payback Time14▲ 168×1 topic
  39. Electrical Properties13▲ 28×4 topics
  40. CZTS13▲ 45×1 topic

Which research topics does Fraunhofer Institute for Solar Energy Systems publish most on?

By volume in 2022–2025: Silicon and Solar Cell Technologies, solar cell performance optimization, Photovoltaic System Optimization Techniques and Thin-Film Transistor Technologies.

Silicon and Solar Cell T…52Silicon and Solar Cell Technologies: 52 fractional workssolar cell performance optimization: 35 fractional worksPhotovoltaic System Optimization Techniques: 25 fractional worksThin-Film Transistor Technologies: 23 fractional worksPerovskite Materials and Applications: 18 fractional worksPhotovoltaic Systems and…14Photovoltaic Systems and Sustainability: 14 fractional worksChalcogenide Semiconductor Thin Films: 13 fractional worksSolar Thermal and Photovoltaic Systems: 13 fractional worksSemiconductor materials and interfaces: 12 fractional worksBuilding Energy and Comfort Optimization: 9 fractional works
Electrical and Electronic EngineeringRenewable Energy, Sustainability and the EnvironmentEnvironmental EngineeringAtomic and Molecular Physics, and Optics1 others

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

  1. 1 Silicon and Solar Cell Technologies Electrical and Electronic Engineering 52 works
  2. 2 solar cell performance optimization Electrical and Electronic Engineering 35 works
  3. 3 Photovoltaic System Optimization Techniques Renewable Energy, Sustainability and the Environment 25 works
  4. 4 Thin-Film Transistor Technologies Electrical and Electronic Engineering 23 works
  5. 5 Perovskite Materials and Applications Electrical and Electronic Engineering 18 works
  6. 6 Photovoltaic Systems and Sustainability Environmental Engineering 14 works
  7. 7 Chalcogenide Semiconductor Thin Films Electrical and Electronic Engineering 13 works
  8. 8 Solar Thermal and Photovoltaic Systems Renewable Energy, Sustainability and the Environment 13 works
  9. 9 Semiconductor materials and interfaces Atomic and Molecular Physics, and Optics 12 works
  10. 10 Building Energy and Comfort Optimization Building and Construction 9 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 available41.0%not open59.0%

World: 28% of research is openly available.

with international co-authors17.9%domestic only82.1%

World: 19% is written across borders.

How has Fraunhofer Institute for Solar Energy Systems's research output changed?

Output in 2018–2022 was 14% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Freiburg im Breisgau

All research institutions in Freiburg im Breisgau

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.