Holger Spanggaard

2.2k total citations · 1 hit paper
18 papers, 1.9k citations indexed

About

Holger Spanggaard is a scholar working on Electrical and Electronic Engineering, Polymers and Plastics and Materials Chemistry. According to data from OpenAlex, Holger Spanggaard has authored 18 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Electrical and Electronic Engineering, 10 papers in Polymers and Plastics and 7 papers in Materials Chemistry. Recurrent topics in Holger Spanggaard's work include Organic Electronics and Photovoltaics (11 papers), Conducting polymers and applications (9 papers) and Organic Light-Emitting Diodes Research (3 papers). Holger Spanggaard is often cited by papers focused on Organic Electronics and Photovoltaics (11 papers), Conducting polymers and applications (9 papers) and Organic Light-Emitting Diodes Research (3 papers). Holger Spanggaard collaborates with scholars based in Denmark, Switzerland and France. Holger Spanggaard's co-authors include Frederik C. Krebs, Jan Alstrup, Matteo Biancardo, Magali Allain, Mogens Brøndsted Nielsen, Jan Becher, Eric Levillain, Kim T. Nielsen, Mikkel Jørgensen and Niels B. Larsen and has published in prestigious journals such as Journal of the American Chemical Society, Chemistry of Materials and Macromolecules.

In The Last Decade

Holger Spanggaard

18 papers receiving 1.8k citations

Hit Papers

A brief history of the development of organic and polymer... 2004 2026 2011 2018 2004 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. A brief history of the development of organic and polymeric photovoltaics
    2004 956 citations Holger Spanggaard, Frederik C. Krebs Solar Energy Materials and Solar Cells profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Holger Spanggaard Denmark 12 1.5k 1.1k 561 228 194 18 1.9k
Andreas Petr Germany 24 853 0.6× 877 0.8× 401 0.7× 286 1.3× 171 0.9× 60 1.5k
Irena Kulszewicz‐Bajer Poland 20 1.1k 0.8× 1.2k 1.1× 509 0.9× 285 1.3× 224 1.2× 89 1.7k
Warren Duffy United Kingdom 19 1.9k 1.3× 1.6k 1.4× 541 1.0× 345 1.5× 162 0.8× 28 2.4k
Mindaugas Kirkus Saudi Arabia 22 1.9k 1.3× 1.5k 1.3× 597 1.1× 258 1.1× 169 0.9× 29 2.3k
John K. Grey United States 23 1.5k 1.0× 1.0k 1.0× 893 1.6× 199 0.9× 299 1.5× 77 2.2k
In‐Wook Hwang South Korea 25 1.7k 1.2× 1.1k 1.0× 1.1k 1.9× 175 0.8× 264 1.4× 76 2.4k
Olivia P. Lee United States 12 1.9k 1.3× 1.6k 1.4× 465 0.8× 330 1.4× 141 0.7× 16 2.2k
D.J. Crouch United Kingdom 21 1.0k 0.7× 554 0.5× 566 1.0× 354 1.6× 93 0.5× 33 1.5k
Patrick Lévêque France 30 2.1k 1.4× 1.4k 1.3× 1.0k 1.8× 307 1.3× 240 1.2× 96 2.6k
Laurence Vignau France 27 1.4k 1.0× 1.0k 0.9× 636 1.1× 470 2.1× 147 0.8× 49 1.9k

Countries citing papers authored by Holger Spanggaard

Since Specialization
Citations

This map shows the geographic impact of Holger Spanggaard's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Holger Spanggaard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Holger Spanggaard more than expected).

Fields of papers citing papers by Holger Spanggaard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Holger Spanggaard. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Holger Spanggaard. The network helps show where Holger Spanggaard may publish in the future.

Co-authorship network of co-authors of Holger Spanggaard

This figure shows the co-authorship network connecting the top 25 collaborators of Holger Spanggaard. A scholar is included among the top collaborators of Holger Spanggaard based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Holger Spanggaard. Holger Spanggaard is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Nielsen, Kim T., Holger Spanggaard, & Frederik C. Krebs. (2005). Synthesis, Light Harvesting, and Energy Transfer Properties of a Zinc Porphyrin Linked Poly(phenyleneethynylene). Macromolecules. 38(4). 1180–1189. 48 indexed citations
2.
Krebs, Frederik C., Jan Alstrup, Matteo Biancardo, & Holger Spanggaard. (2005). Large area polymer solar cells. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5938. 593804–593804. 9 indexed citations
3.
Krebs, Frederik C. & Holger Spanggaard. (2005). Antibatic photovoltaic response in zinc-porphyrin-linked oligothiophenes. Solar Energy Materials and Solar Cells. 88(4). 363–375. 33 indexed citations
4.
Krebs, Frederik C. & Holger Spanggaard. (2005). Significant Improvement of Polymer Solar Cell Stability. Chemistry of Materials. 17(21). 5235–5237. 247 indexed citations
5.
Biancardo, Matteo, et al.. (2005). Synthesis of Conjugated Polymers Containing Terpyridine−Ruthenium Complexes:  Photovoltaic Applications. Macromolecules. 38(25). 10436–10448. 72 indexed citations
6.
Spanggaard, Holger & Frederik C. Krebs. (2004). A brief history of the development of organic and polymeric photovoltaics. Solar Energy Materials and Solar Cells. 83(2-3). 125–146. 956 indexed citations breakdown →
7.
Krebs, Frederik C. & Holger Spanggaard. (2004). Direct emissive pattern formation in PPV-type polymer with built-in photoresist properties and the application to light emitting devices. Synthetic Metals. 148(1). 53–59. 13 indexed citations
8.
Krebs, Frederik C., et al.. (2004). Production of large-area polymer solar cells by industrial silk screen printing, lifetime considerations and lamination with polyethyleneterephthalate. Solar Energy Materials and Solar Cells. 83(2-3). 293–300. 203 indexed citations
9.
Nielsen, Kim T., Holger Spanggaard, & Frederik C. Krebs. (2004). Dye linked conjugated homopolymers: using conjugated polymer electroluminescence to optically pump porphyrin-dye emission. Displays. 25(5). 231–235. 4 indexed citations
10.
Zych, Eugeniusz, W. Goetz, Niels Harrit, & Holger Spanggaard. (2004). Spectroscopic properties of sintered BaMgAl10O17:Eu2+ (BAM) translucent pellets. Journal of Alloys and Compounds. 380(1-2). 113–117. 10 indexed citations
11.
Spanggaard, Holger, Mikkel Jørgensen, & Kristoffer Almdal. (2003). Mechanical Strain Sensing in a SIS-Type Elastomer with Single Site Strain Probes Based on Carbazole. Macromolecules. 36(5). 1701–1705. 18 indexed citations
12.
Krebs, Frederik C., Holger Spanggaard, Noémi Rozlosnik, Niels B. Larsen, & Mikkel Jørgensen. (2003). Synthesis, Properties, and Langmuir−Blodgett Film Studies of an Ionic Dye Terminated Rigid Conducting Oligomer. Langmuir. 19(19). 7873–7880. 36 indexed citations
13.
Krebs, Frederik C., Ole Hagemann, & Holger Spanggaard. (2003). Directional Synthesis of a Dye-Linked Conducting Homopolymer. The Journal of Organic Chemistry. 68(6). 2463–2466. 15 indexed citations
14.
Krebs, Frederik C. & Holger Spanggaard. (2002). An Exceptional Red Shift of Emission Maxima upon Fluorine Substitution. The Journal of Organic Chemistry. 67(21). 7185–7192. 102 indexed citations
15.
16.
Spanggaard, Holger, et al.. (2000). Multiple-Bridged Bis-Tetrathiafulvalenes:  New Synthetic Protocols and Spectroelectrochemical Investigations. Journal of the American Chemical Society. 122(39). 9486–9494. 119 indexed citations
17.
Kops, Jørgen & Holger Spanggaard. (1981). Polymerization of 2-methyloxacyclobutane with triethyloxonium ion initiator. Polymer Bulletin. 4(9). 2 indexed citations
18.
Kops, Jørgen, Søren Hvilsted, & Holger Spanggaard. (1981). Ring-opening polymerization of bicyclic ethers. Pure and Applied Chemistry. 53(9). 1777–1795. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Andreas Petr Breakdown of academic impact, for papers by Irena Kulszewicz‐Bajer Breakdown of academic impact, for papers by Warren Duffy Breakdown of academic impact, for papers by Mindaugas Kirkus Breakdown of academic impact, for papers by John K. Grey Breakdown of academic impact, for papers by In‐Wook Hwang Breakdown of academic impact, for papers by Olivia P. Lee Breakdown of academic impact, for papers by D.J. Crouch Breakdown of academic impact, for papers by Patrick Lévêque Breakdown of academic impact, for papers by Laurence Vignau
Rankless by CCL
2026