World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
81
Citations
40987
World Ranking
3179
National Ranking
1055

David L. Allara 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 David L. Allara 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: 251 publications — 50th percentile

50% of scientists in this discipline score the same or lower.

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

David L. Allara 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 David L. Allara 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: 81 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1996 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

David L. Allara is a researcher affiliated with Pennsylvania State University in the United States. Their academic work spans several fields, primarily within engineering, physics, and astronomy. Specifically, their research contributions include Engineering and Physics and Astronomy with a focus on subfields such as Biomedical Engineering, Atomic and Molecular Physics and Optics, and Electrical and Electronic Engineering.

Their recent publication record includes the paper titled Selective Functionalization of Micromachined Quartz Resonator Arrays Using Electrochemical Techniques for Biosensing Applications, published in 2024 in the IEEE Sensors Letters. This work documents progress in sensor technology through resonator arrays functionalized for biosensing, and it represents their ongoing research activities within engineering and applied physics domains.

Throughout their career, David L. Allara has collaborated with multiple coauthors. Frequent collaborators include Ping Kao and Srinivas Tadigadapa, with whom they have coauthored the aforementioned publication.

The scientist's research topics primarily revolve around:

  • Acoustic Wave Resonator Technologies
  • Mechanical and Optical Resonators
  • Advanced MEMS and NEMS Technologies

These topics reflect a focus on microelectromechanical systems (MEMS), nanoelectromechanical systems (NEMS), and resonator technologies applying physical principles to engineering problems.

David L. Allara has published in venues such as IEEE Sensors Letters, which is significant for disseminating research in sensor technology and related engineering fields.

In recognition of scholarly achievements, the scientist was named a Fellow of the American Association for the Advancement of Science (AAAS) in 1996, illustrating their longstanding engagement with the scientific community.

Best Publications

  • Spontaneously organized molecular assemblies. 4. Structural characterization of n-alkyl thiol monolayers on gold by optical ellipsometry, infrared spectroscopy, and electrochemistry

    Marc D. Porter;Marc D. Porter;Thomas B. Bright;David L. Allara;Christopher E. D. Chidsey

  • ADSORPTION OF BIFUNCTIONAL ORGANIC DISULFIDES ON GOLD SURFACES

    Ralph G. Nuzzo;David L. Allara

  • Comparison of the Structures and Wetting Properties of Self-Assembled Monolayers of n- Alkanethiols on the Coinage Metal Surfaces, Cu, Ag, Au'

    Paul E. Laibinis;Paul E. Laibinis;George M. Whitesides;David L. Allara;Yu Tai Tao;Yu Tai Tao

  • Fundamental studies of microscopic wetting on organic surfaces. 1. Formation and structural characterization of a self-consistent series of polyfunctional organic monolayers

    Ralph G. Nuzzo;Lawrence H. Dubois;David L. Allara

  • Are Single Molecular Wires Conducting

    L. A. Bumm;J. J. Arnold;M. T. Cygan;T. D. Dunbar

  • Conductance Switching in Single Molecules Through Conformational Changes

    Z. J. Donhauser;B. A. Mantooth;K. F. Kelly;L. A. Bumm

  • Spontaneously organized molecular assemblies. 3. Preparation and properties of solution adsorbed monolayers of organic disulfides on gold surfaces

    Ralph G. Nuzzo;Florence A. Fusco;David L. Allara

  • Molecular monolayers and films. A panel report for the Materials Sciences Division of the Department of Energy

    J. D. Swalen;D. L. Allara;D. L. Allara;J. D. Andrade;E. A. Chandross

  • Spontaneously organized molecular assemblies. 1. Formation, dynamics, and physical properties of n-alkanoic acids adsorbed from solution on an oxidized aluminum surface

    David L. Allara;Ralph G. Nuzzo

  • Self-assembled monolayers and multilayers of conjugated thiols, α,ω-dithiols, and thioacetyl-containing adsorbates. Understanding attachments between potential molecular wires and gold surfaces

    James M. Tour;LeRoy Jones;Darren L. Pearson;Jaydeep J S Lamba

  • Monolayer Films Prepared by the Spontaneous Self-Assembly of Symmetrical and Unsymmetrical Dialkyl Sulfides from Solution onto Gold Substrates: Structure, Properties, and Reactivity of Constituent Functional Groups

    Ernest B. Troughton;Colin D. Bain;George M. Whitesides;Ralph G. Nuzzo

  • An Intrinsic Relationship between Molecular Structure in Self-Assembled n-Alkylsiloxane Monolayers and Deposition Temperature

    Atul N. Parikh;David L. Allara;Issam Ben Azouz;Francis Rondelez

  • Electron Transfer through Organic Molecules

    L. A. Bumm;J. J. Arnold;T. D. Dunbar;D. L. Allara

  • Phase Separation of Mixed-Composition Self-Assembled Monolayers into Nanometer Scale Molecular Domains

    S. J. Stranick;A. N. Parikh;Y.-T. Tao;D. L. Allara

  • Spontaneously organized molecular assemblies. 2. Quantitative infrared spectroscopic determination of equilibrium structures of solution-adsorbed n-alkanoic acids on an oxidized aluminum surface

    Unknown

  • Insertion, Conductivity, and Structures of Conjugated Organic Oligomers in Self-Assembled Alkanethiol Monolayers on Au{111}

    M. T. Cygan;T. D. Dunbar;Jamie Jon Arnold;L. A. Bumm

  • Quantitative determination of molecular structure in multilayered thin films of biaxial and lower symmetry from photon spectroscopies. I. Reflection infrared vibrational spectroscopy

    Atul N. Parikh;David L. Allara

  • Direct covalent grafting of conjugated molecules onto Si, GaAs, and Pd surfaces from aryldiazonium salts.

    Michael P. Stewart;Francisco Maya;Dmitry V. Kosynkin;Shawn M. Dirk

  • Evidence for a Unique Chain Organization in Long Chain Silane Monolayers Deposited on Two Widely Different Solid Substrates

    David L. Allara;Atul N. Parikh;Francis Rondelez

  • Endothelial cell growth and protein adsorption on terminally functionalized, self-assembled monolayers of alkanethiolates on gold

    Caren D. Tidwell;Sylvie I. Ertel;Buddy D. Ratner;Barbara J. Tarasevich

  • n-Alkylsiloxanes: From Single Monolayers to Layered Crystals. The Formation of Crystalline Polymers from the Hydrolysis of n-Octadecyltrichlorosilane

    A. N. Parikh;M. A. Schivley;E. Koo;K. Seshadri

Frequent Co-Authors

Atul N. Parikh
Atul N. Parikh University of California, Davis
Paul S. Weiss
Paul S. Weiss University of California, Los Angeles
James M. Tour
James M. Tour Rice University
Nicholas Winograd
Nicholas Winograd Pennsylvania State University
Michael Zharnikov
Michael Zharnikov Heidelberg University
Theresa S. Mayer
Theresa S. Mayer Purdue University West Lafayette
Harold G. Craighead
Harold G. Craighead Cornell University
Robert L. Opila
Robert L. Opila University of Delaware
Yu-Tai Tao
Yu-Tai Tao Academia Sinica
Lintao Cai
Lintao Cai Shenzhen Institutes of Advanced Technology

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