World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
53
Citations
10627
World Ranking
13027
National Ranking
66

Ahmad Irfan 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 Ahmad Irfan 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: 336 publications — 70th percentile

70% of scientists in this discipline score the same or lower.

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

Ahmad Irfan 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 Ahmad Irfan 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: 53 D-Index — 28th percentile

28% of scientists in this discipline score the same or lower.

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

Overview

Ahmad Irfan is affiliated with King Khalid University in Saudi Arabia and has an extensive publication record primarily in the fields of Chemistry, Materials Science, and Engineering. Their research contributions include 280 publications in Chemistry, 246 in Materials Science, and 177 in Engineering. Subfields of particular focus include Organic Chemistry, Materials Chemistry, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, and Biomedical Engineering.

The scientist's work spans several major topical areas, including:

  • Nonlinear Optical Materials Research
  • Synthesis and Biological Activity
  • Free Radicals and Antioxidants
  • Perovskite Materials and Applications
  • Nanomaterials for Catalytic Reactions
  • Chalcogenide Semiconductor Thin Films
  • Metal Complexes Synthesis and Properties

Frequent publication venues for Ahmad Irfan include:

  • Journal of Molecular Liquids (41 publications)
  • Journal of Molecular Structure (18 publications)
  • RSC Advances (14 publications)
  • Journal of the Indian Chemical Society (12 publications)
  • Computational and Theoretical Chemistry (7 publications)

Some of the most recent papers authored or co-authored by Ahmad Irfan are:

  • "Machine learning and molecular dynamics simulation-assisted evolutionary design and discovery pipeline to screen efficient small molecule acceptors for PTB7-Th-based organic solar cells with over 15% efficiency" (2022), published in Journal of Materials Chemistry A
  • "Machine Learning for Organic Photovoltaic Polymers: A Minireview" (2022), published in Chinese Journal of Polymer Science
  • "Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects" (2020), published in Journal of Hazardous Materials
  • "Developing Efficient Small Molecule Acceptors with sp2-Hybridized Nitrogen at Different Positions by Density Functional Theory Calculations, Molecular Dynamics Simulations and Machine Learning" (2021), published in Chemistry - A European Journal
  • "Electrochemical Sensors for Heavy Metal Ion Detection in Aqueous Medium: A Systematic Review" (2024), published in ACS Omega

Ahmad Irfan has collaborated frequently with several researchers, demonstrating interdisciplinary cooperation. Frequent co-authors include:

  • S. Muthu (70 joint publications)
  • Zahoor H. Farooqi (47 joint publications)
  • Robina Begum (44 joint publications)
  • Aijaz Rasool Chaudhry (42 joint publications)
  • Md. Ferdous Rahman (40 joint publications)

Best Publications

  • Removal of Congo red dye from aqueous medium by its catalytic reduction using sodium borohydride in the presence of various inorganic nano-catalysts: A review

    Khalida Naseem;Zahoor H. Farooqi;Robina Begum;Ahmad Irfan;Ahmad Irfan

  • Quantum chemical design of nonlinear optical materials by sp2-hybridized carbon nanomaterials: issues and opportunities

    Shabbir Muhammad;Shabbir Muhammad;Hong-Liang Xu;Rong-Lin Zhong;Zhong-Min Su

  • Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

    Zahoor H. Farooqi;Muhammad Waseem Akram;Robina Begum;Weitai Wu

  • Applications of UV/Vis Spectroscopy in Characterization and Catalytic Activity of Noble Metal Nanoparticles Fabricated in Responsive Polymer Microgels: A Review.

    Robina Begum;Zahoor H Farooqi;Khalida Naseem;Faisal Ali

  • Chemical reduction of methylene blue in the presence of nanocatalysts: a critical review

    Robina Begum;Jawayria Najeeb;Ayesha Sattar;Khalida Naseem

  • First principles study for the key electronic, optical and nonlinear optical properties of novel donor-acceptor chalcones.

    Shabbir Muhammad;Shabbir Muhammad;Shabbir Muhammad;Abdullah G. Al-Sehemi;Zhongmin Su;Hongliang Xu

  • Developing Efficient Small Molecule Acceptors with sp2 -Hybridized Nitrogen at Different Positions by Density Functional Theory Calculations, Molecular Dynamics Simulations and Machine Learning.

    Asif Mahmood;Ahmad Irfan;Jin-Liang Wang

  • Adsorptive removal of heavy metal ions using polystyrene-poly(N-isopropylmethacrylamide-acrylic acid) core/shell gel particles: Adsorption isotherms and kinetic study

    Khalida Naseem;Robina Begum;Weitai Wu;Muhammad Usman

  • Catalytic reduction of toxic dyes in the presence of silver nanoparticles impregnated core-shell composite microgels

    Khalida Naseem;Robina Begum;Robina Begum;Weitai Wu;Ahmad Irfan;Ahmad Irfan

  • An investigation on the key features of a D–π–A type novel chalcone derivative for opto-electronic applications

    Mohd. Shkir;Mohd. Shkir;Shabbir Muhammad;Shabbir Muhammad;Salem AlFaify;Salem AlFaify;Ahmad Irfan;Ahmad Irfan

  • Silver nanoparticles stabilized in polymer hydrogels for catalytic degradation of azo dyes.

    Sadia Iqbal;Chandani Zahoor;Sara Musaddiq;Murid Hussain

  • Quantum chemical analysis and molecular dynamics simulations to study the impact of electron-deficient substituents on electronic behavior of small molecule acceptors

    Asif Mahmood;Ahmad Irfan;Ahmad Irfan;Farooq Ahmad;Muhammad Ramzan Saeed Ashraf Janjua

  • Effect of fluorination on exciton binding energy and electronic coupling in small molecule acceptors for organic solar cells

    Asif Mahmood;Ahmad Irfan;Ahmad Irfan

  • Role of a singlet diradical character in carbon nanomaterials: a novel hot spot for efficient nonlinear optical materials

    Shabbir Muhammad;Shabbir Muhammad;Masayoshi Nakano;Abdullah G. Al-Sehemi;Abdullah G. Al-Sehemi;Yasutaka Kitagawa

  • Tuning the push–pull configuration for efficient second-order nonlinear optical properties in some chalcone derivatives

    Shabbir Muhammad;Shabbir Muhammad;Abdullah G. Al-Sehemi;Ahmad Irfan;Aijaz R. Chaudhry

  • Fe3O4-PDA-Lipase as Surface Functionalized Nano Biocatalyst for the Production of Biodiesel Using Waste Cooking Oil as Feedstock: Characterization and Process Optimization

    Tooba Touqeer;Muhammad Waseem Mumtaz;Hamid Mukhtar;Ahmad Irfan

  • Computational Designing of Triphenylamine Dyes with Broad and Red‐shifted Absorption Spectra for Dye‐sensitized Solar Cells using Multi‐Thiophene Rings in π‐Spacer

    Asif Mahmood;Mudassir HussainTahir;Ahmad Irfan;Ahmad Irfan;Bilal Khalid

  • Facile synthesis of silver nanoparticles in a crosslinked polymeric system by in situ reduction method for catalytic reduction of 4-nitroaniline.

    Zahoor H Farooqi;Rida Khalid;Robina Begum;Umar Farooq

  • Heterocyclic azo dyes for dye sensitized solar cells: A quantum chemical study

    Asif Mahmood;Mudassir Hussain Tahir;Ahmad Irfan;Ahmad Irfan;Abdullah G. Al-Sehemi;Abdullah G. Al-Sehemi

  • Novel W-Shaped Oxygen Heterocycle-Fused Fluorene-Based Non-Fullerene Acceptors: First Theoretical Framework for Designing Environment-Friendly Organic Solar Cells

    Muhammad Usman Khan;Muhammad Khalid;Riaz Hussain;Ali Umar

  • Quantum chemical study of the donor-bridge-acceptor triphenylamine based sensitizers.

    Ahmad Irfan;Ruifa Jin;Abdullah G. Al-Sehemi;Abdullah M. Asiri

  • Computational analysis to understand the performance difference between two small-molecule acceptors differing in their terminal electron-deficient group

    Asif Mahmood;Asif Mahmood;Ahmad Irfan;Ahmad Irfan

Frequent Co-Authors

Abdullah G. Al-Sehemi
Abdullah G. Al-Sehemi King Khalid University
Shabbir Muhammad
Shabbir Muhammad King Khalid University
Zahoor H. Farooqi
Zahoor H. Farooqi University of the Punjab
Mohd. Shkir
Mohd. Shkir King Khalid University
Abdullah M. Asiri
Abdullah M. Asiri King Abdulaziz University
S. AlFaify
S. AlFaify King Khalid University
Renjith Thomas
Renjith Thomas St. Berchmans College
Jingping Zhang
Jingping Zhang Northeast Normal University
Muhammad Khalid
Muhammad Khalid Constructor University
Rashid Ahmed
Rashid Ahmed University of Technology Malaysia

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