H.F. Wittmann

3.0k total citations · 1 hit paper
14 papers, 2.6k citations indexed

About

H.F. Wittmann is a scholar working on Electrical and Electronic Engineering, Polymers and Plastics and Artificial Intelligence. According to data from OpenAlex, H.F. Wittmann has authored 14 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Electrical and Electronic Engineering, 6 papers in Polymers and Plastics and 2 papers in Artificial Intelligence. Recurrent topics in H.F. Wittmann's work include Organic Electronics and Photovoltaics (10 papers), Organic Light-Emitting Diodes Research (9 papers) and Conducting polymers and applications (6 papers). H.F. Wittmann is often cited by papers focused on Organic Electronics and Photovoltaics (10 papers), Organic Light-Emitting Diodes Research (9 papers) and Conducting polymers and applications (6 papers). H.F. Wittmann collaborates with scholars based in United Kingdom, Belgium and Germany. H.F. Wittmann's co-authors include Richard H. Friend, John C. de Mello, Muhammad S. Khan, Jack Lewis, Anna Köhler, Andrew B. Holmes, Jean‐Luc Brédas, David Beljonne, K. Pichler and Stephen C. Graham and has published in prestigious journals such as Advanced Materials, The Journal of Chemical Physics and Applied Physics Letters.

In The Last Decade

H.F. Wittmann

14 papers receiving 2.6k citations

Hit Papers

align trajectories

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.

An improved experimental determination of external photoluminescence quantum efficiency

1997 1.8k citations John C. de Mello, H.F. Wittmann et al. Advanced Materials profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
H.F. Wittmann United Kingdom	12	1.8k	1.6k	636	313	259	14	2.6k
J. Sworakowski Poland	26	1.2k 0.6×	1.1k 0.7×	536 0.8×	334 1.1×	286 1.1×	144	2.2k
Brooks A. Jones United States	10	2.2k 1.2×	1.0k 0.6×	1.1k 1.8×	473 1.5×	273 1.1×	11	2.9k
Juan Cabanillas‐González Spain	27	1.7k 0.9×	1.4k 0.9×	614 1.0×	263 0.8×	215 0.8×	114	2.6k
Masanao Era Japan	20	1.5k 0.8×	1.2k 0.7×	492 0.8×	257 0.8×	335 1.3×	92	2.0k
Marcel Gsänger Germany	17	1.1k 0.6×	898 0.6×	625 1.0×	364 1.2×	176 0.7×	23	1.9k
Gordon J. Hedley United Kingdom	21	1.5k 0.8×	1.0k 0.6×	677 1.1×	316 1.0×	147 0.6×	38	2.2k
J.-J. André France	26	779 0.4×	1.3k 0.8×	420 0.7×	301 1.0×	698 2.7×	70	2.1k
Núria Crivillers Spain	25	1.5k 0.8×	1.1k 0.7×	337 0.5×	315 1.0×	491 1.9×	69	2.3k
Manabu Furugori Japan	9	1.5k 0.8×	1.1k 0.7×	300 0.5×	467 1.5×	260 1.0×	9	1.9k
Youji Inoue Japan	19	1.9k 1.0×	608 0.4×	838 1.3×	417 1.3×	270 1.0×	31	2.4k

Countries citing papers authored by H.F. Wittmann

Since Specialization

Citations

This map shows the geographic impact of H.F. Wittmann'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 H.F. Wittmann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H.F. Wittmann more than expected).

Fields of papers citing papers by H.F. Wittmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H.F. Wittmann. 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 H.F. Wittmann. The network helps show where H.F. Wittmann may publish in the future.

Co-authorship network of co-authors of H.F. Wittmann

This figure shows the co-authorship network connecting the top 25 collaborators of H.F. Wittmann. A scholar is included among the top collaborators of H.F. Wittmann 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 H.F. Wittmann. H.F. Wittmann is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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14 of 14 papers shown

Wittmann, H.F., et al.. (2025). Retrieval-Augmented Generation (RAG). Business & Information Systems Engineering. 67(4). 551–561. 2 indexed citations

Wittmann, H.F., et al.. (2023). Explanation matters: An experimental study on explainable AI. Electronic Markets. 33(1). 27 indexed citations

Mello, John C. de, H.F. Wittmann, & Richard H. Friend. (1997). An improved experimental determination of external photoluminescence quantum efficiency. Advanced Materials. 9(3). 230–232. 1798 indexed citations breakdown →

Friend, Richard H., G. J. Denton, J.J.M. Halls, et al.. (1997). Electronic excitations in luminescent conjugated polymers. Solid State Communications. 102(2-3). 249–258. 59 indexed citations

Grizzi, Ilaria, S. K. Heeks, D. Lacey, et al.. (1997). Operating stability of light-emitting polymer diodes based on poly(p-phenylene vinylene). Applied Physics Letters. 71(1). 34–36. 109 indexed citations

Köhler, Anna, H.F. Wittmann, Richard H. Friend, Muhammad S. Khan, & Jack Lewis. (1996). Enhanced photocurrent response in photocells made with platinum-poly-yne/C60 blends by photoinduced electron transfer. Synthetic Metals. 77(1-3). 147–150. 85 indexed citations

Beljonne, David, H.F. Wittmann, Anna Köhler, et al.. (1996). Spatial extent of the singlet and triplet excitons in transition metal-containing poly-ynes. The Journal of Chemical Physics. 105(9). 3868–3877. 160 indexed citations

Baigent, D.R., Franco Cacialli, Neil C. Greenham, et al.. (1996). Light-emitting diodes fabricated with conjugated polymers. Solid-State Electronics. 40(1-8). 477–485. 11 indexed citations

Wittmann, H.F., et al.. (1995). Microcavity effect in a single‐layer polymer light‐emitting diode. Advanced Materials. 7(6). 541–544. 89 indexed citations

10.

Köhler, Anna, H.F. Wittmann, Richard H. Friend, Muhammad S. Khan, & Jack Lewis. (1994). The photovoltaic effect in a platinum poly-yne. Synthetic Metals. 67(1-3). 245–249. 61 indexed citations

11.

Wittmann, H.F., Richard H. Friend, Muhammad S. Khan, & Jack Lewis. (1994). Optical spectroscopy of platinum and palladium containing poly-ynes. The Journal of Chemical Physics. 101(4). 2693–2698. 109 indexed citations

12.

Grüner, J., H.F. Wittmann, P.J. Hamer, et al.. (1994). Electroluminescence and photoluminescence investigations of the yellow emission of devices based on ladder-type oligo(para-phenylene)s. Synthetic Metals. 67(1-3). 181–185. 65 indexed citations

13.

Wittmann, H.F., K. Fuhrmann, Richard H. Friend, Muhammad S. Khan, & Jack Lewis. (1993). Optical excitations in transition metal containing poly-ynes. Synthetic Metals. 55(1). 56–61. 24 indexed citations

14.

Lhost, Olivier, Jean‐Luc Brédas, H.F. Wittmann, et al.. (1993). Electronic structure of platinum-containing polyynes. Synthetic Metals. 57(2-3). 4525–4530. 17 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.

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