World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Electronics and Electrical Engineering 78 586 562 15 15 632 21424
Materials Science 81 2577 2487 148 141 659 24845

Uli Lemmer publications per year

The chart shows the history of publications by Uli Lemmer between 1989 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Uli Lemmer published across 37 years, from 1989 to 2025, averaging 20.6 papers a year. Output peaked at 47 publications in 2010. 48 of the 761 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1989 to 2025. Vertical axis: number of publications, 0 to 47. Peak 47 publications in 2010. 1989: 1 publication 1990: 4 publications 1991: 0 publications 1992: 2 publications 1993: 6 publications 1994: 8 publications 1995: 9 publications 1996: 5 publications 1997: 6 publications 1998: 9 publications 1999: 6 publications 2000: 5 publications 2001: 5 publications 2002: 6 publications 2003: 6 publications 2004: 6 publications 2005: 13 publications 2006: 26 publications 2007: 30 publications 2008: 26 publications 2009: 29 publications 2010: 47 publications 2011: 45 publications 2012: 33 publications 2013: 42 publications 2014: 40 publications 2015: 26 publications 2016: 33 publications 2017: 42 publications 2018: 45 publications 2019: 37 publications 2020: 38 publications 2021: 36 publications 2022: 19 publications 2023: 22 publications 2024: 26 publications 2025: 22 publications
1989 2025

761 publications in total across all disciplines

View publications per year as a table
Uli Lemmer: publications per year, 1989 to 2025
Year Publications
1989 1
1990 4
1991 0
1992 2
1993 6
1994 8
1995 9
1996 5
1997 6
1998 9
1999 6
2000 5
2001 5
2002 6
2003 6
2004 6
2005 13
2006 26
2007 30
2008 26
2009 29
2010 47
2011 45
2012 33
2013 42
2014 40
2015 26
2016 33
2017 42
2018 45
2019 37
2020 38
2021 36
2022 19
2023 22
2024 26
2025 22
Total 761
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Uli Lemmer publication distribution in Electronics and Electrical Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Electronics and Electrical Engineering in 2026. The highlighted bar marks where Uli Lemmer sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 53 bars. Horizontal axis: publications, 34–53 to 1,065+. Vertical axis: number of scientists, 0 to 445. Most scientists, 445, have 174–193 publications. The last bar groups every scientist with 1,065 publications or more. The highlighted bar, 614–633 publications, is where this scientist sits. 34–53 publications: 24 scientists 54–73 publications: 52 scientists 74–93 publications: 114 scientists 94–113 publications: 203 scientists 114–133 publications: 269 scientists 134–153 publications: 355 scientists 154–173 publications: 403 scientists 174–193 publications: 445 scientists 194–213 publications: 430 scientists 214–233 publications: 431 scientists 234–253 publications: 399 scientists 254–273 publications: 366 scientists 274–293 publications: 335 scientists 294–313 publications: 300 scientists 314–333 publications: 276 scientists 334–353 publications: 250 scientists 354–373 publications: 214 scientists 374–393 publications: 187 scientists 394–413 publications: 152 scientists 414–433 publications: 169 scientists 434–453 publications: 147 scientists 454–473 publications: 111 scientists 474–493 publications: 117 scientists 494–513 publications: 103 scientists 514–533 publications: 99 scientists 534–553 publications: 92 scientists 554–573 publications: 75 scientists 574–593 publications: 58 scientists 594–613 publications: 69 scientists 614–633 publications: 50 scientists 634–653 publications: 62 scientists 654–673 publications: 54 scientists 674–693 publications: 44 scientists 694–713 publications: 37 scientists 714–733 publications: 28 scientists 734–753 publications: 26 scientists 754–773 publications: 26 scientists 774–793 publications: 19 scientists 794–813 publications: 23 scientists 814–833 publications: 20 scientists 834–853 publications: 16 scientists 854–873 publications: 20 scientists 874–893 publications: 11 scientists 894–913 publications: 11 scientists 914–933 publications: 16 scientists 934–953 publications: 13 scientists 954–973 publications: 10 scientists 974–993 publications: 11 scientists 994–1,013 publications: 9 scientists 1,014–1,033 publications: 9 scientists 1,034–1,053 publications: 10 scientists 1,054–1,064 publications: 6 scientists 1,065+ publications: 99 scientists
34–53 publications 1,065+

This scientist: 632 publications — 92nd percentile

92% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,065 publications or more.

View publications distribution as a table
Number of Electronics and Electrical Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
Publications Scientists This scientist
34–53 24
54–73 52
74–93 114
94–113 203
114–133 269
134–153 355
154–173 403
174–193 445
194–213 430
214–233 431
234–253 399
254–273 366
274–293 335
294–313 300
314–333 276
334–353 250
354–373 214
374–393 187
394–413 152
414–433 169
434–453 147
454–473 111
474–493 117
494–513 103
514–533 99
534–553 92
554–573 75
574–593 58
594–613 69
614–633 50 632
634–653 62
654–673 54
674–693 44
694–713 37
714–733 28
734–753 26
754–773 26
774–793 19
794–813 23
814–833 20
834–853 16
854–873 20
874–893 11
894–913 11
914–933 16
934–953 13
954–973 10
974–993 11
994–1,013 9
1,014–1,033 9
1,034–1,053 10
1,054–1,064 6
1,065+ 99
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Uli Lemmer D-index placement in Electronics and Electrical Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Electronics and Electrical Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Uli Lemmer sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 82 bars. Horizontal axis: D-Index, 30 to 111+. Vertical axis: number of scientists, 0 to 263. Most scientists, 263, have 32 D-Index. The last bar groups every scientist with 111 D-Index or more. The highlighted bar, 78 D-Index, is where this scientist sits. 30 D-Index: 178 scientists 31 D-Index: 257 scientists 32 D-Index: 263 scientists 33 D-Index: 262 scientists 34 D-Index: 244 scientists 35 D-Index: 236 scientists 36 D-Index: 211 scientists 37 D-Index: 220 scientists 38 D-Index: 214 scientists 39 D-Index: 214 scientists 40 D-Index: 205 scientists 41 D-Index: 187 scientists 42 D-Index: 194 scientists 43 D-Index: 201 scientists 44 D-Index: 155 scientists 45 D-Index: 189 scientists 46 D-Index: 148 scientists 47 D-Index: 160 scientists 48 D-Index: 134 scientists 49 D-Index: 130 scientists 50 D-Index: 141 scientists 51 D-Index: 156 scientists 52 D-Index: 108 scientists 53 D-Index: 130 scientists 54 D-Index: 112 scientists 55 D-Index: 97 scientists 56 D-Index: 111 scientists 57 D-Index: 102 scientists 58 D-Index: 108 scientists 59 D-Index: 120 scientists 60 D-Index: 103 scientists 61 D-Index: 93 scientists 62 D-Index: 92 scientists 63 D-Index: 74 scientists 64 D-Index: 77 scientists 65 D-Index: 73 scientists 66 D-Index: 64 scientists 67 D-Index: 69 scientists 68 D-Index: 60 scientists 69 D-Index: 39 scientists 70 D-Index: 57 scientists 71 D-Index: 59 scientists 72 D-Index: 46 scientists 73 D-Index: 49 scientists 74 D-Index: 38 scientists 75 D-Index: 35 scientists 76 D-Index: 32 scientists 77 D-Index: 35 scientists 78 D-Index: 31 scientists 79 D-Index: 22 scientists 80 D-Index: 34 scientists 81 D-Index: 31 scientists 82 D-Index: 34 scientists 83 D-Index: 23 scientists 84 D-Index: 18 scientists 85 D-Index: 30 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 20 scientists 89 D-Index: 8 scientists 90 D-Index: 17 scientists 91 D-Index: 7 scientists 92 D-Index: 14 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 12 scientists 97 D-Index: 10 scientists 98 D-Index: 10 scientists 99 D-Index: 12 scientists 100 D-Index: 16 scientists 101 D-Index: 5 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 8 scientists 105 D-Index: 9 scientists 106 D-Index: 13 scientists 107 D-Index: 4 scientists 108 D-Index: 5 scientists 109 D-Index: 10 scientists 110 D-Index: 8 scientists 111+ D-Index: 96 scientists
30 D-Index 111+

This scientist: 78 D-Index — 92nd percentile

92% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 111 D-Index or more.

View D-Index distribution as a table
Number of Electronics and Electrical Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
D-Index Scientists This scientist
30 178
31 257
32 263
33 262
34 244
35 236
36 211
37 220
38 214
39 214
40 205
41 187
42 194
43 201
44 155
45 189
46 148
47 160
48 134
49 130
50 141
51 156
52 108
53 130
54 112
55 97
56 111
57 102
58 108
59 120
60 103
61 93
62 92
63 74
64 77
65 73
66 64
67 69
68 60
69 39
70 57
71 59
72 46
73 49
74 38
75 35
76 32
77 35
78 31 78
79 22
80 34
81 31
82 34
83 23
84 18
85 30
86 19
87 19
88 20
89 8
90 17
91 7
92 14
93 9
94 15
95 10
96 12
97 10
98 10
99 12
100 16
101 5
102 7
103 7
104 8
105 9
106 13
107 4
108 5
109 10
110 8
111+ 96
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Research.com Recognitions

  • 2019 - OSA Fellows Uli Lemmer Karlsruhe Institute of Technology, Germany For developing a vision for an international education program in optics that appreciates its importance as an enabling technology

Overview

Uli Lemmer is affiliated with the Karlsruhe Institute of Technology in Germany. Their academic work primarily spans the fields of engineering and materials science, with significant contributions to electrical and electronic engineering, materials chemistry, and biomedical engineering. They also have research interests in polymers and plastics, as well as atomic and molecular physics and optics.

The scientist's main research topics include perovskite materials and applications, conducting polymers and their applications, advanced sensor and energy harvesting materials, quantum dots synthesis and properties, organic electronics and photovoltaics, advanced thermoelectric materials and devices, and organic light-emitting diodes research.

Some of the recent papers by Uli Lemmer include:

  • Two birds with one stone: dual grain-boundary and interface passivation enables >22% efficient inverted methylammonium-free perovskite solar cells, 2021, Energy & Environmental Science
  • 2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four-Terminal Tandems with Silicon and CIGS, 2020, Advanced Functional Materials
  • Fully printed origami thermoelectric generators for energy-harvesting, 2021, npj Flexible Electronics
  • Scalable two-terminal all-perovskite tandem solar modules with a 19.1% efficiency, 2022, Nature Energy
  • High Efficiency Perovskite-Silicon Tandem Solar Cells: Effect of Surface Coating versus Bulk Incorporation of 2D Perovskite, 2020, Advanced Energy Materials

Uli Lemmer frequently collaborates with other researchers, including Ulrich W. Paetzold, Leonard Franke, Gerardo Hernandez-Sosa, Md Mofasser Mallick, and Bryce S. Richards. These collaborations contribute to a diverse range of publications and research outputs.

The scientist publishes regularly in several academic journals, with the most frequent venues including Advanced Materials Technologies, Advanced Optical Materials, Advanced Functional Materials, ACS Applied Materials & Interfaces, and Advanced Energy Materials.

Lemmer was recognized as an OSA Fellow in 2019 for developing a vision for an international education program in optics that underscores its importance as an enabling technology.

Best Publications

  • Near-infrared imaging with quantum-dot-sensitized organic photodiodes

    Tobias Rauch;Michaela Böberl;Sandro F. Tedde;Jens Fürst;Jens Fürst

  • EXCITON DIFFUSION AND DISSOCIATION IN CONJUGATED POLYMER/FULLERENE BLENDS AND HETEROSTRUCTURES

    A. Haugeneder;M. Neges;C. Kallinger;W. Spirkl

  • Femtosecond energy relaxation in π-conjugated polymers

    R. Kersting;R. Kersting;U. Lemmer;U. Lemmer;R. F. Mahrt;R. F. Mahrt;K. Leo;K. Leo

  • AGGREGATE FLUORESCENCE IN CONJUGATED POLYMERS

    U. Lemmer;S. Heun;R.F. Mahrt;Ullrich Scherf

  • ULTRAFAST FIELD-INDUCED DISSOCIATION OF EXCITONS IN CONJUGATED POLYMERS

    R. Kersting;U. Lemmer;M. Deussen;H. J. Bakker

  • Optically Induced Damping of the Surface Plasmon Resonance in Gold Colloids

    M. Perner;P. Bost;U. Lemmer;G. von Plessen

  • Record Open-Circuit Voltage Wide-Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure

    Saba Gharibzadeh;Bahram Abdollahi Nejand;Marius Jakoby;Tobias Abzieher

  • X-ray imaging with scintillator-sensitized hybrid organic photodetectors

    Patric Büchele;Patric Büchele;Moses Richter;Sandro F. Tedde;Gebhard J. Matt

  • A flexible conjugated polymer laser

    Christian Kallinger;Martin Hilmer;Andreas Haugeneder;Martin Perner

  • Size-dependent absolute quantum yields for size-separated colloidally-stable silicon nanocrystals.

    Melanie L. Mastronardi;Florian Maier-Flaig;Daniel Faulkner;Eric J. Henderson

  • Multicolor Silicon Light-Emitting Diodes (SiLEDs)

    Florian Maier-Flaig;Julia Rinck;Moritz Stephan;Tobias Bocksrocker

  • Conformational effects in poly(p-phenylene vinylene)s revealed by low-temperature site-selective fluorescence

    S. Heun;R. F. Mahrt;Andreas Greiner;Ulrich Lemmer

  • Conjugated polymers: lasing and stimulated emission

    Ullrich Scherf;S. Riechel;U. Lemmer;R. F. Mahrt

  • Two birds with one stone: dual grain-boundary and interface passivation enables >22% efficient inverted methylammonium-free perovskite solar cells

    Saba Gharibzadeh;Paul Fassl;Ihteaz M. Hossain;Pascal Rohrbeck

  • A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure

    S. Riechel;C. Kallinger;U. Lemmer;J. Feldmann

  • Molecular construction kit for tuning solubility, stability and luminescence properties: Heteroleptic MePyrPHOS-copper iodide-complexes and their application in organic light-emitting diodes

    Daniel Volz;Daniel M. Zink;Tobias Bocksrocker;Jana Friedrichs

  • Coated and Printed Perovskites for Photovoltaic Applications.

    Ian A. Howard;Tobias Abzieher;Ihteaz M. Hossain;Helge Eggers

  • Inkjet-Printed Micrometer-Thick Perovskite Solar Cells with Large Columnar Grains

    Helge Eggers;Fabian Schackmar;Tobias Abzieher;Qing Sun

  • Efficiency Enhancement of Organic and Thin-Film Silicon Solar Cells with Photochemical Upconversion

    Tim F. Schulze;Jens Czolk;Yuen Yap Cheng;Burkhard Fückel

  • Inkjet-Printed Triple Cation Perovskite Solar Cells

    Florian Mathies;Helge Eggers;Bryce Sydney Richards;Gerardo Hernandez-Sosa

  • Ultrafast dynamics of charge carrier photogeneration and geminate recombination in conjugated polymer:fullerene solar cells

    J. G. Müller;J. M. Lupton;J. Feldmann;U. Lemmer

  • Moving through the phase diagram: morphology formation in solution cast polymer-fullerene blend films for organic solar cells.

    Benjamin Schmidt-Hansberg;Monamie Sanyal;Michael F. G. Klein;Marina Pfaff

Frequent Co-Authors

Alexander Colsmann
Alexander Colsmann Karlsruhe Institute of Technology
Ulrich W. Paetzold
Ulrich W. Paetzold Karlsruhe Institute of Technology
Bryce S. Richards
Bryce S. Richards Karlsruhe Institute of Technology
Ian A. Howard
Ian A. Howard Karlsruhe Institute of Technology
Ullrich Scherf
Ullrich Scherf University of Wuppertal
Jochen Feldmann
Jochen Feldmann Ludwig-Maximilians-Universität München
Michael Powalla
Michael Powalla Karlsruhe Institute of Technology
Heinz Kalt
Heinz Kalt Karlsruhe Institute of Technology
Dagmar Gerthsen
Dagmar Gerthsen Karlsruhe Institute of Technology
Hendrik Hölscher
Hendrik Hölscher Karlsruhe Institute of Technology

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