P. Würfel

6.1k total citations · 3 hit papers
63 papers, 4.8k citations indexed

About

P. Würfel is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, P. Würfel has authored 63 papers receiving a total of 4.8k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Electrical and Electronic Engineering, 25 papers in Materials Chemistry and 23 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in P. Würfel's work include Silicon and Solar Cell Technologies (15 papers), Thermal Radiation and Cooling Technologies (13 papers) and solar cell performance optimization (13 papers). P. Würfel is often cited by papers focused on Silicon and Solar Cell Technologies (15 papers), Thermal Radiation and Cooling Technologies (13 papers) and solar cell performance optimization (13 papers). P. Würfel collaborates with scholars based in Germany, United States and Australia. P. Würfel's co-authors include Thorsten Trupke, Martin A. Green, I. P. Batra, Wolfgang Ruppel, B. D. Silverman, E. Daub, R. Munser, W. Koch, Bryce S. Richards and Avi Shalav and has published in prestigious journals such as Physical Review Letters, Journal of Applied Physics and The Journal of Physical Chemistry B.

In The Last Decade

P. Würfel

61 papers receiving 4.6k 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.

Improving solar cell efficiencies by down-conversion of high-energy photons

2002 806 citations Thorsten Trupke, Martin A. Green et al. Journal of Applied Physics profile →
The chemical potential of radiation

1982 710 citations P. Würfel Journal of Physics C Solid State Physics profile →
Improving solar cell efficiencies by up-conversion of sub-band-gap light

2002 635 citations Thorsten Trupke, Martin A. Green et al. Journal of Applied Physics profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
P. Würfel Germany	27	3.3k	2.9k	1.2k	768	535	63	4.8k
F. A. Modine United States	24	2.4k 0.7×	2.2k 0.8×	883 0.7×	883 1.1×	480 0.9×	68	4.2k
Liangmo Mei China	37	2.4k 0.7×	3.6k 1.3×	1.5k 1.2×	603 0.8×	1.8k 3.3×	262	5.6k
O. J. Glembocki United States	39	3.0k 0.9×	2.0k 0.7×	2.2k 1.8×	2.5k 3.3×	1.3k 2.5×	175	5.6k
Riccardo Rurali Spain	36	2.7k 0.8×	3.0k 1.0×	2.1k 1.7×	1.9k 2.5×	290 0.5×	176	5.2k
S. T. Pantelides United States	32	2.1k 0.7×	2.1k 0.7×	1.1k 0.9×	285 0.4×	413 0.8×	72	3.6k
C. N. Afonso Spain	35	1.5k 0.5×	2.4k 0.8×	865 0.7×	1.6k 2.1×	885 1.7×	219	4.4k
G.-C. Wang United States	42	2.3k 0.7×	2.8k 1.0×	1.8k 1.5×	830 1.1×	867 1.6×	187	5.5k
Roger K. Lake United States	48	4.3k 1.3×	4.4k 1.5×	3.0k 2.4×	1.2k 1.6×	815 1.5×	212	7.7k
Joseph G. Tischler United States	29	2.0k 0.6×	1.5k 0.5×	2.1k 1.7×	1.4k 1.8×	833 1.6×	125	4.2k
Laurent Chaput France	23	1.2k 0.4×	3.7k 1.3×	744 0.6×	191 0.2×	885 1.7×	39	4.4k

Countries citing papers authored by P. Würfel

Since Specialization

Citations

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

Fields of papers citing papers by P. Würfel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. Würfel. 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 P. Würfel. The network helps show where P. Würfel may publish in the future.

Co-authorship network of co-authors of P. Würfel

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

All Works

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20 of 20 papers shown

Trupke, Thorsten, R.A. Bardos, Malcolm Abbott, et al.. (2022). Progress with luminescence imaging for the characterisation of silicon wafers and solar cells. Fraunhofer-Publica (Fraunhofer-Gesellschaft). 2 indexed citations

Würfel, P., Andrew S. Brown, T. E. Humphrey, & Martin A. Green. (2005). Particle conservation in the hot‐carrier solar cell. Progress in Photovoltaics Research and Applications. 13(4). 277–285. 85 indexed citations

Trupke, Thorsten, et al.. (2003). Up-and down-conversion as new means to improve solar cell efficiencies. 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of. 1. 67–70. 7 indexed citations

Würfel, P.. (2003). Basic principles of solar cells and the possible impact of nano-structures. 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of. 3. 2672–2675. 1 indexed citations

Trupke, Thorsten, Martin A. Green, & P. Würfel. (2002). Improving solar cell efficiencies by up-conversion of sub-band-gap light. Journal of Applied Physics. 92(7). 4117–4122. 635 indexed citations breakdown →

Trupke, Thorsten, P. Würfel, I. Uhlendorf, & Iver Lauermann. (1999). Electroluminescence of the Dye-Sensitized Solar Cell. The Journal of Physical Chemistry B. 103(11). 1905–1910. 21 indexed citations

Würfel, P., S. Finkbeiner, & E. Daub. (1995). Generalized Planck's radiation law for luminescence via indirect transitions. Applied Physics A. 60(1). 67–70. 111 indexed citations

Schöpf, H.‐G., Wolfgang Ruppel, & P. Würfel. (1991). Voltage responsivity of pyroelectric detectors on a heat-sink substrate. Ferroelectrics. 118(1). 297–305. 11 indexed citations

Würfel, P., et al.. (1989). Interface state density at the contact of ferroelectric NaNO₂and silicon. Ferroelectrics. 99(1). 87–100. 3 indexed citations

10.

Vogt, Harald, et al.. (1986). Anomalous Charge Storage in NaNO2 Layers. physica status solidi (a). 93(1). 299–308.

11.

Würfel, P., et al.. (1986). Ferroelectric field effect of a thin NaNO2-layer on a Si-substrate. Ferroelectrics. 69(1). 223–230. 5 indexed citations

12.

Würfel, P. & Wolfgang Ruppel. (1985). The flow equilibrium of a body in a radiation field. Journal of Physics C Solid State Physics. 18(15). 2987–3000. 6 indexed citations

13.

Ruppel, Wolfgang, et al.. (1983). Interference filters for thermophotovoltaic solar energy conversion. Solar Cells. 10(3). 273–286. 14 indexed citations

14.

Ruppel, Wolfgang & P. Würfel. (1980). Upper limit for the conversion of solar energy. IEEE Transactions on Electron Devices. 27(4). 877–882. 91 indexed citations

15.

Würfel, P. & Wolfgang Ruppel. (1980). Upper limit of thermophotovoltaic solar-energy conversion. IEEE Transactions on Electron Devices. 27(4). 745–750. 48 indexed citations

16.

Munser, R., et al.. (1978). The photovoltaic effect and the charge transport in LiNbO₃. Ferroelectrics. 21(1). 623–625. 45 indexed citations

17.

Würfel, P., et al.. (1978). Charge compensation in vacuum-cleaved ferroelectric triglycine sulfate (TGS). Ferroelectrics. 19(1). 15–18. 7 indexed citations

18.

Würfel, P. & I. P. Batra. (1976). Depolarization effects in thin ferroelectric films. Ferroelectrics. 12(1). 55–61. 51 indexed citations

19.

Batra, I. P., P. Würfel, & B. D. Silverman. (1973). Phase Transition, Stability, and Depolarization Field in Ferroelectric Thin Films. Physical review. B, Solid state. 8(7). 3257–3265. 155 indexed citations

20.

Würfel, P. & I. P. Batra. (1973). Depolarization-Field-Induced Instability in Thin Ferroelectric Films—Experiment and Theory. Physical review. B, Solid state. 8(11). 5126–5133. 200 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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