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Kristofer Tvingstedt

Kristofer Tvingstedt

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Engineering and Technology 40 7169 6919 241 231 78 10506

Kristofer Tvingstedt publications per year

The chart shows the history of publications by Kristofer Tvingstedt between 2004 and 2022, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kristofer Tvingstedt published across 19 years, from 2004 to 2022, averaging 4.2 papers a year. Output peaked at 8 publications in 2007. 6 of the 80 publications appeared in the last two years.

No. of publications
2 4 6 8
Bar chart. Horizontal axis: year, 2004 to 2022. Vertical axis: number of publications, 0 to 8. Peak 8 publications in 2007. 2004: 1 publication 2005: 1 publication 2006: 6 publications 2007: 8 publications 2008: 5 publications 2009: 6 publications 2010: 6 publications 2011: 5 publications 2012: 5 publications 2013: 1 publication 2014: 2 publications 2015: 2 publications 2016: 2 publications 2017: 6 publications 2018: 7 publications 2019: 8 publications 2020: 3 publications 2021: 5 publications 2022: 1 publication
2004 2022

80 publications in total across all disciplines

View publications per year as a table
Kristofer Tvingstedt: publications per year, 2004 to 2022
Year Publications
2004 1
2005 1
2006 6
2007 8
2008 5
2009 6
2010 6
2011 5
2012 5
2013 1
2014 2
2015 2
2016 2
2017 6
2018 7
2019 8
2020 3
2021 5
2022 1
Total 80
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Kristofer Tvingstedt publications per year - data summary

  • Kristofer Tvingstedt, a Engineering and Technology scholar from University of Würzburg, has 80 publications recorded across 19 years, from 2004 to 2022.
  • The oldest publication on record dates to 2004 and the most recent to 2022.
  • The most productive years are 2007 and 2019, with 8 publications each.
  • The least productive years with any output are 2004, 2005, 2013 and 2022, with 1 publication each.
  • The rate of publication averages 4.2 papers per year over the whole span, or 4.2 per year counting only the 19 years with at least one publication.
  • The last 5 years on the chart (2018-2022) hold 24 publications, 30% of the career total.
  • Split into equal eras - 2004-2010: 33 publications (4.7 per year); 2011-2017: 23 publications (3.3 per year); 2018-2022: 24 publications (4.8 per year).
  • Comparing the opening and closing eras, the overall trend of publication is broadly steady.

Kristofer Tvingstedt publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Kristofer Tvingstedt sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: publications, 38–47 to 804+. Vertical axis: number of scientists, 0 to 457. Most scientists, 457, have 148–157 publications. The last bar groups every scientist with 804 publications or more. The highlighted bar, 78–87 publications, is where this scientist sits. 38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38–47 publications 804+

This scientist: 78 publications — 3rd percentile

3% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

View publications distribution as a table
Number of Engineering and Technology scientists by publication count, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
Publications Scientists This scientist
38–47 20
48–57 35
58–67 96
68–77 135
78–87 190 78
88–97 259
98–107 283
108–117 369
118–127 341
128–137 386
138–147 372
148–157 457
158–167 415
168–177 407
178–187 421
188–197 378
198–207 403
208–217 317
218–227 346
228–237 321
238–247 260
248–257 280
258–267 240
268–277 214
278–287 242
288–297 203
298–307 166
308–317 154
318–327 175
328–337 159
338–347 99
348–357 131
358–367 106
368–377 118
378–387 97
388–397 108
398–407 82
408–417 71
418–427 64
428–437 55
438–447 54
448–457 60
458–467 47
468–477 40
478–487 30
488–497 29
498–507 38
508–517 40
518–527 32
528–537 23
538–547 28
548–557 23
558–567 19
568–577 16
578–587 17
588–597 18
598–607 22
608–617 15
618–627 9
628–637 11
638–647 21
648–657 12
658–667 9
668–677 11
678–687 9
688–697 6
698–707 14
708–717 7
718–727 8
728–737 10
738–747 9
748–757 5
758–767 5
768–777 11
778–787 7
788–797 2
798–803 4
804+ 100
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Kristofer Tvingstedt publication distribution in Engineering and Technology in 2026 - data summary

  • The chart plots the publication count of all 9,796 Engineering and Technology scientists ranked by Research.com in 2026, grouped into 78 ranges running from 38–47 to 804+ publications.
  • Kristofer Tvingstedt, a Engineering and Technology scholar from University of Würzburg, records 78 publications - the 3rd percentile of the discipline.
  • 3% of ranked Engineering and Technology scientists score the same or lower than Kristofer Tvingstedt, and about 97% score higher.
  • The median of the discipline falls in the 198–207 publications range, and Kristofer Tvingstedt ranks below the median.
  • The most crowded range is 148–157 publications, holding 457 scientists (5% of the field).
  • 61% of the field sits in the lowest quarter of the value range (up to 228–237 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 804 publications or more, 100 scientists in all (1% of the field).

Kristofer Tvingstedt D-index placement in Engineering and Technology in 2026

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

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: D-Index, 30 to 107+. Vertical axis: number of scientists, 0 to 426. Most scientists, 426, have 42 D-Index. The last bar groups every scientist with 107 D-Index or more. The highlighted bar, 40 D-Index, is where this scientist sits. 30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 40 D-Index — 27th percentile

27% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

View D-Index distribution as a table
Number of Engineering and Technology scientists by D-index, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
D-Index Scientists This scientist
30 59
31 114
32 129
33 189
34 200
35 262
36 311
37 312
38 350
39 385
40 348 40
41 362
42 426
43 380
44 310
45 341
46 301
47 306
48 271
49 246
50 210
51 253
52 213
53 221
54 195
55 186
56 170
57 167
58 166
59 144
60 152
61 141
62 138
63 131
64 118
65 114
66 119
67 95
68 87
69 77
70 89
71 69
72 54
73 46
74 55
75 54
76 49
77 53
78 46
79 28
80 39
81 36
82 24
83 26
84 36
85 18
86 25
87 19
88 26
89 27
90 23
91 15
92 12
93 9
94 15
95 10
96 13
97 13
98 9
99 7
100 7
101 8
102 7
103 7
104 9
105 6
106 9
107+ 99
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Kristofer Tvingstedt D-index placement in Engineering and Technology in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 9,796 Engineering and Technology scientists ranked by Research.com in 2026, grouped into 78 ranges running from 30 to 107+ D-Index.
  • Kristofer Tvingstedt, a Engineering and Technology scholar from University of Würzburg, records 40 D-Index - the 27th percentile of the discipline.
  • 27% of ranked Engineering and Technology scientists score the same or lower than Kristofer Tvingstedt, and about 73% score higher.
  • The median of the discipline falls in the 47 D-Index range, and Kristofer Tvingstedt ranks below the median.
  • The most crowded range is 42 D-Index, holding 426 scientists (4% of the field).
  • 57% of the field sits in the lowest quarter of the value range (up to 49 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 107 D-Index or more, 99 scientists in all (1% of the field).

Overview

Kristofer Tvingstedt is affiliated with the University of Würzburg in Germany. Their research is primarily focused on engineering and materials science, with particular attention to electrical and electronic engineering, materials chemistry, and polymers and plastics.

Their research topics cover a wide spectrum including:

  • Perovskite Materials and Applications
  • Conducting polymers and applications
  • Organic Electronics and Photovoltaics
  • Solid-state spectroscopy and crystallography
  • Chalcogenide Semiconductor Thin Films
  • Organic Light-Emitting Diodes Research
  • Molecular Junctions and Nanostructures

Tvingstedt has published in several scientific venues, with frequent publications in:

  • Materials Horizons
  • ACS Applied Energy Materials
  • Nature Materials
  • Sustainable Energy & Fuels
  • Solar RRL

Notable papers include:

  • "Temperature dependence of the spectral line-width of charge-transfer state emission in organic solar cells; static vs. dynamic disorder" (2020), published in Materials Horizons
  • "Optoelectronic Properties of Cs2AgBiBr6 Thin Films: The Influence of Precursor Stoichiometry" (2020), published in ACS Applied Energy Materials
  • "Band gap engineering in blended organic semiconductor films based on dielectric interactions" (2021), published in Nature Materials
  • "On the absence of triplet exciton loss pathways in non-fullerene acceptor based organic solar cells" (2020), published in Materials Horizons
  • "Assigning ionic properties in perovskite solar cells; a unifying transient simulation/experimental study" (2021), published in Sustainable Energy & Fuels

Frequent co-authors collaborating with Tvingstedt include:

  • Vladimir Dyakonov
  • M. Fischer
  • David Kiermasch
  • Lidón Gil-Escrig
  • Henk J. Bolink

Best Publications

  • On the origin of the open-circuit voltage of polymer–fullerene solar cells

    Koen Vandewal;Kristofer Tvingstedt;Abay Gadisa;Olle Inganäs

  • Consensus stability testing protocols for organic photovoltaic materials and devices

    Matthew O. Reese;Suren A. Gevorgyan;Mikkel Jørgensen;Eva Bundgaard

  • Relating the open-circuit voltage to interface molecular properties of donor:acceptor bulk heterojunction solar cells

    Koen Vandewal;Kristofer Tvingstedt;Abay Gadisa;Olle Inganäs

  • Intrinsic non-radiative voltage losses in fullerene-based organic solar cells

    Johannes Benduhn;Kristofer Tvingstedt;Fortunato Piersimoni;Sascha Ullbrich

  • Electroluminescence from charge transfer states in polymer solar cells.

    Kristofer Tvingstedt;Koen Vandewal;Abay Gadisa;Fengling Zhang

  • Radiative efficiency of lead iodide based perovskite solar cells

    Kristofer Tvingstedt;Olga Malinkiewicz;Andreas Baumann;Carsten Deibel

  • Electrode Grids for ITO Free Organic Photovoltaic Devices

    Kristofer Tvingstedt;Olle Inganäs

  • Removing Leakage and Surface Recombination in Planar Perovskite Solar Cells

    Kristofer Tvingstedt;Lidón Gil-Escrig;Cristina Momblona;Philipp Rieder

  • Surface plasmon increase absorption in polymer photovoltaic cells

    Kristofer Tvingstedt;Nils-Krister Persson;Olle Inganäs;Aliaksandr Rahachou

  • A round robin study of flexible large-area roll-to-roll processed polymer solar cell modules

    Frederik C. Krebs;Suren A. Gevorgyan;Bobak Gholamkhass;Steven Holdcroft

  • Identification of Trap States in Perovskite Solar Cells

    Andreas Baumann;Stefan Väth;Philipp Rieder;Michael C. Heiber

  • Understanding the Role of Cesium and Rubidium Additives in Perovskite Solar Cells: Trap States, Charge Transport, and Recombination

    Yinghong Hu;Eline M. Hutter;Philipp Rieder;Irene Grill

  • Quantification of Quantum Efficiency and Energy Losses in Low Bandgap Polymer:Fullerene Solar Cells with High Open-Circuit Voltage

    Koen Vandewal;Zaifei Ma;Jonas Bergqvist;Zheng Tang

  • Investigation on polymer anode design for flexible polymer solar cells

    Yinhua Zhou;Fengling Zhang;Kristofer Tvingstedt;Sophie Barrau

  • Trapping light with micro lenses in thin film organic photovoltaic cells.

    Kristofer Tvingstedt;Simone Dal Zilio;Olle Inganäs;Massimo Tormen

  • On the Dissociation Efficiency of Charge Transfer Excitons and Frenkel Excitons in Organic Solar Cells: A Luminescence Quenching Study

    Kristofer Tvingstedt;Koen Vandewal;Fengling Zhang;Olle Inganäs

  • Emissive and charge-generating donor-acceptor interfaces for organic optoelectronics with low voltage losses.

    Sascha Ullbrich;Johannes Benduhn;Xiangkun Jia;Vasileios C. Nikolis

  • Folded reflective tandem polymer solar cell doubles efficiency

    Kristofer Tvingstedt;Viktor Andersson;Fengling Zhang;Olle Inganäs

  • High photovoltage achieved in low band gap polymer solar cells by adjusting energy levels of a polymer with the LUMOs of fullerene derivatives

    Fengling Zhang;Johan Bijleveld;Erik Perzon;Kristofer Tvingstedt

  • Influence of Molecular Weight on the Performance of Organic Solar Cells Based on a Fluorene Derivative

    Christian Müller;Ergang Wang;L. Mattias Andersson;Kristofer Tvingstedt

  • Temperature Dependence of Ideality Factors in Organic Solar Cells and the Relation to Radiative Efficiency

    Kristofer Tvingstedt;Kristofer Tvingstedt;Carsten Deibel

  • Semi-Transparent Tandem Organic Solar Cells with 90% Internal Quantum Efficiency

    Zheng Tang;Zandra George;Zaifei Ma;Jonas Bergqvist

Frequent Co-Authors

Olle Inganäs
Olle Inganäs Linköping University
Vladimir Dyakonov
Vladimir Dyakonov University of Würzburg
Koen Vandewal
Koen Vandewal Hasselt University
Fengling Zhang
Fengling Zhang Linköping University
Mats Andersson
Mats Andersson Flinders University
Henk J. Bolink
Henk J. Bolink University of Valencia
Jean Manca
Jean Manca Hasselt University
Zheng Tang
Zheng Tang Donghua University
Thomas Bein
Thomas Bein Ludwig-Maximilians-Universität München
Tom J. Savenije
Tom J. Savenije Delft University of Technology

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