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Topic · Physical and Theoretical Chemistry

Photochemistry and Electron Transfer Studies

Photochemistry and Electron Transfer Studies is a research topic within Physical and Theoretical Chemistry. Science Explorer counts 53k research works in it since 1950. 9.9% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the mechanisms, dynamics, and applications of excited-state proton transfer, intramolecular charge transfer, solvation dynamics, and hydrogen bonding. It also explores the use of these phenomena in luminescent solar concentrators and organic optoelectronic materials.

  • Excited-State Proton Transfer
  • Intramolecular Charge Transfer
  • Solvation Dynamics
  • Luminescent Solar Concentrators
  • Hydrogen Bonding
  • Fluorescence Quantum Yields
  • Organic Optoelectronic Materials
  • Electron Transfer
  • Photoinduced Proton Transfer
  • Solvatochromism
Research works
53k
fractional, since 1950
In the world top 10%
5.2k
per year above
Top-10% rate
9.9%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
-11%
the tick is no change
Largest producer
China
26% of the 10 largest, 2022-now
Photochemistry and Electron Transfer Studies

Which countries lead Photochemistry and Electron Transfer Studies research?

By volume, China and the United States publish the most (681 and 479 works in 2022-now).

By volume, 2022-now

  1. 1 China 681 works
  2. 2 United States 479 works
  3. 3 India 461 works
  4. 4 Russia 215 works
  5. 5 Japan 213 works
  6. 6 Germany 189 works
  7. 7 France 137 works
  8. 8 Italy 105 works
  9. 9 Poland 99 works
  10. 10 United Kingdom 84 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.

China: 25.6%United States: 18.0%India: 17.3%Russia: 8.1%6 others listed: 31.0%26%largest
China681 · 25.6%United States479 · 18.0%India461 · 17.3%Russia215 · 8.1%6 others listed825 · 31.0%

Shares of the rows listed above, not of the whole node.

Which institutions lead Photochemistry and Electron Transfer Studies research?

By volume in 2022-now, Russian Academy of Sciences publishes the most Photochemistry and Electron Transfer Studies research, followed by Centre National de la Recherche Scientifique and Chinese Academy of Sciences.

By volume, 2022-now

  1. 1 Russian Academy of SciencesRussia 112 works
  2. 2 Centre National de la Recherche ScientifiqueFrance 77 works
  3. 3 Chinese Academy of SciencesChina 45 works
  4. 4 Jilin UniversityChina 25 works
  5. 5 Polish Academy of SciencesPoland 25 works
  6. 6 Lomonosov Moscow State UniversityRussia 17 works
  7. 7 Helmholtz Association of German Research CentresGermany 16 works
  8. 8 National Research CouncilItaly 16 works
  9. 9 Indian Institute of Science Education and Research ThiruvananthapuramIndia 15 works
  10. 10 National Academy of Sciences of UkraineUkraine 15 works

Who are the leading researchers in Photochemistry and Electron Transfer Studies?

The most-cited researchers publishing on Photochemistry and Electron Transfer Studies include Michaël Grätzel, John P. Perdew and George Davey Smith.

  1. 1 Michaël Grätzel Switzerland 458k citations
  2. 2 John P. Perdew United States 436k citations
  3. 3 George Davey Smith United Kingdom 435k citations
  4. 4 Jun Wang China 340k citations
  5. 5 Jeremy Grimshaw Canada 281k citations
  6. 6 Kieron Burke United States 276k citations
  7. 7 Matthias Ernzerhof Canada 276k citations
  8. 8 George M. Whitesides United States 267k citations
  9. 9 Wei Huang China 267k citations
  10. 10 Ben Zhong Tang China 261k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Photochemistry and Electron Transfer Studies?

The most cited paper in Photochemistry and Electron Transfer Studies is "Universal Solvation Model Based on Solute Electron Density and on a Continuum Model of the Solvent Defined by the Bulk Dielectric Constant and Atomic Surface Tensions" (Aleksandr V. Marenich, Christopher J. Cramer, Donald G. Truhlar, 2009), with 18,056 citations. Next come "Quantum Mechanical Continuum Solvation Models" (16,860) and "Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution" (12,349).

Most cited papers
#PaperReleasedCitations
1 Universal Solvation Model Based on Solute Electron Density and on a Continuum Model of the Solvent Defined by the Bulk Dielectric Constant and Atomic Surface Tensions Aleksandr V. Marenich, Christopher J. Cramer, Donald G. Truhlar · The Journal of Physical Chemistry B Open access 14 Apr 2009 18,056
2 Quantum Mechanical Continuum Solvation Models Jacopo Tomasi, Benedetta Mennucci, Roberto Cammi · Chemical Reviews Review 26 Jul 2005 16,860
3 Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution George V. Buxton, Clive L. Greenstock, W. Phillips Helman et al. · Journal of Physical and Chemical Reference Data Apr 1988 12,349
4 Quantum Calculation of Molecular Energies and Energy Gradients in Solution by a Conductor Solvent Model Vincenzo Barone, Maurizio Cossi · The Journal of Physical Chemistry A 20 Feb 1998 10,212
5 Electrostatic interaction of a solute with a continuum. A direct utilizaion of AB initio molecular potentials for the prevision of solvent effects Stanislav Miertuš, Eolo Scrocco, J. Tomasi · Chemical Physics Feb 1981 8,993
All 100 most cited papers, with filters and sorting

Where is Photochemistry and Electron Transfer Studies research done?

The largest centres of Photochemistry and Electron Transfer Studies research in 2022-now are Beijing (China), Moscow (Russia), Paris (France) and Tokyo (Japan). Among places with at least 20 works in it, it is an unusually large share of all research in Thiruvananthapuram.

Largest cities, 2022-now

  1. 1 BeijingChina 89 works
  2. 2 MoscowRussia 73 works
  3. 3 ParisFrance 50 works
  4. 4 TokyoJapan 45 works
  5. 5 MumbaiIndia 39 works
  6. 6 NanjingChina 37 works
  7. 7 ChangchunChina 37 works
  8. 8 WarsawPoland 34 works
  9. 9 KolkataIndia 33 works
  10. 10 ShenyangChina 33 works

Where it is the local speciality

  1. ThiruvananthapuramIN · 20.5 works7.9×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Photochemistry and Electron Transfer Studies than the world average.

See Photochemistry and Electron Transfer Studies on the map

Where is the best place to study Photochemistry and Electron Transfer Studies?

Among universities, judged by research, Shenyang Normal University, Jilin University and Northeast Forestry University 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.

0%20%40%mean 18.79%fractional works in this field (log) →share of work in the world top 10% →Shenyang Normal Univ…Northeast Forestry U…Liaoning UniversityJilin University
above the meannear itbelow it

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.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Shenyang Normal UniversityChina 73.135.2%101.5×14 -
2Jilin UniversityChina 66.416.4%6.9×25 +20.4%
3Northeast Forestry UniversityChina 59.224.3%13.2×12 +120.1%
4Liaoning UniversityChina 55.922.0%29.3×12 +41.5%
5Indian Institute of Science Education and Research ThiruvananthapuramIndia 50.98.8%110.8×16 +107.3%
6The Ohio State UniversityUnited States 50.828.6%3.0×12 +18.5%
7South China University of TechnologyChina 45.024.7%2.8×10 +75.2%
8Kyushu UniversityJapan 41.29.7%6.8×12 +34.7%
9Northwestern UniversityUnited States 41.118.1%3.9×10 -21.9%
10Lomonosov Moscow State UniversityRussia 38.80.1%6.3×17 -9.6%

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 Photochemistry and Electron Transfer Studies, country by country

Is Photochemistry and Electron Transfer Studies research growing?

Output in 2022-2025 was 11% lower than in 2018-2021, peaking in 2006.

still counting19801990200020102020
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 Photochemistry and Electron Transfer Studies as a percentage of every work published that year, 0.014% in 2024.

still counting0.10%0.20%Photochemistry and Electron Transfer Studies0.013% in 202519801990200020102020

Fractional works of Photochemistry and Electron Transfer Studies 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.

still counting5%10%15%Photochemistry and Electron Transfer Studies10.0% in 2025200020102020

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.

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