World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
64
Citations
21824
World Ranking
7911
National Ranking
2293

James N. Demas publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where James N. Demas sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 215 publications — 38th percentile

38% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

James N. Demas D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where James N. Demas sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 64 D-Index — 56th percentile

56% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

James N. Demas is affiliated with the University of Virginia in the United States. The academic profile of this researcher shows engagement mainly through their institutional association. No recent papers, co-authors, or specific publication venues have been listed in the available data.

The absence of detailed records on papers or book publications limits specific insights into the research contributions or scholarly output of James N. Demas. Similarly, there are no listed main fields or subfields of study, nor precise topics covered in their work, which restricts the ability to outline areas of scientific focus or expertise.

There are no documented awards associated with this scientist, which means there is no available information on recognitions or honors received during their career.

Since the scientist is currently living, the description remains in present tense. The provided information outlines a basic professional association without elaboration on research themes, impact, or collaboration patterns.

Best Publications

  • Measurement of photoluminescence quantum yields. Review

    Glenn A. Crosby;James N. Demas

  • Photophysics and photochemistry of oxygen sensors based on luminescent transition-metal complexes

    Elizabeth R. Carraway;J. N. Demas;B. A. DeGraff;J. R. Bacon

  • Excited State Lifetime Measurements

    J. N. Demas

  • Multi-emissive difluoroboron dibenzoylmethane polylactide exhibiting intense fluorescence and oxygen-sensitive room-temperature phosphorescence.

    Guoqing Zhang;Jianbin Chen;Sarah J. Payne;Steven E. Kooi

  • Determination of oxygen concentrations by luminescence quenching of a polymer-immobilized transition-metal complex

    J. R. Bacon;J. N. Demas

  • Versatile Room-Temperature-Phosphorescent Materials Prepared from N-Substituted Naphthalimides: Emission Enhancement and Chemical Conjugation.

    Xiaofeng Chen;Cheng Xu;Tao Wang;Cao Zhou

  • Applications of luminescent transition platinum group metal complexes to sensor technology and molecular probes

    J.N. Demas;B.A. DeGraff

  • Modeling of Luminescence Quenching-Based Sensors: Comparison of Multisite and Nonlinear Gas Solubility Models

    J. N. Demas;B. A. DeGraff;Wenying. Xu

  • Luminescence studies of pyridine .alpha.-diimine rhenium(I) tricarbonyl complexes

    LouAnn Sacksteder;Arden P. Zipp;Elizabeth A. Brown;Julie Streich

  • Luminescence quenching mechanism for microheterogeneous systems

    E. R. Carraway;J. N. Demas;B. A. DeGraff

  • An error analysis of the rapid lifetime determination method for the evaluation of single exponential decays

    Richard M. Ballew;J. N. Demas

  • Peer Reviewed: Oxygen Sensors Based on Luminescence Quenching.

    James N. Demas;B. A. DeGraff;Patricia B. Coleman

  • Long-lived, highly luminescent rhenium(I) complexes as molecular probes: intra- and intermolecular excited-state interactions

    LouAnn Sacksteder;Maria Lee;J. N. Demas;B. A. DeGraff

  • Oxygen Sensors Based on Luminescence Quenching: Interactions of Metal Complexes with the Polymer Supports

    Wenying. Xu;Robert Clayton. McDonough;Brandi. Langsdorf;J. N. Demas

  • Quantum efficiencies on transition metal complexes. II. Charge-transfer luminescence

    Unknown

  • Quenching of the electrochemiluminescence of tris(2,2'-bipyridine)ruthenium(II) by ferrocene and its potential application to quantitative DNA detection.

    Weidong Cao;Jerome P. Ferrance;James Demas;James P. Landers

  • Error analysis of the rapid lifetime determination method for double-exponential decays and new windowing schemes.

    Kristin K. Sharman;Ammasi Periasamy;Harry Ashworth;J. N. Demas

  • Energy transfer from luminescent transition metal complexes to oxygen

    Unknown

  • New photosensitizer. Tris(2,2'-bipyridine)ruthenium(II) chloride

    Arthur W. Adamson;James N. Demas

  • Aromatic difluoroboron β-diketonate complexes: effects of π-conjugation and media on optical properties.

    Songpan Xu;Ruffin E. Evans;Tiandong Liu;Guoqing Zhang

  • Design of oxygen sensors based on quenching of luminescent metal complexes : effect of ligand size on heterogeneity

    LouAnn. Sacksteder;J. N. Demas;B. A. DeGraff

  • Quantum efficiencies of transition-metal complexes. I. d-d Luminescence

    Glenn A. Crosby;James N. Demas

Frequent Co-Authors

Cassandra L. Fraser
Cassandra L. Fraser University of Virginia
Richard A. Keller
Richard A. Keller Los Alamos National Laboratory
Ming C. Wu
Ming C. Wu University of California, Berkeley
Frank V. Bright
Frank V. Bright University at Buffalo, State University of New York
Michal Sabat
Michal Sabat University of Virginia
James P. Landers
James P. Landers University of Virginia
David L. Brautigan
David L. Brautigan University of Virginia
Hangxun Xu
Hangxun Xu University of Science and Technology of China
Yi Luo
Yi Luo University of Science and Technology of China
Jun Jiang
Jun Jiang University of Science and Technology of China

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