T. Wittchen

560 total citations
11 papers, 368 citations indexed

About

T. Wittchen is a scholar working on Electrical and Electronic Engineering, Aerospace Engineering and Renewable Energy, Sustainability and the Environment. According to data from OpenAlex, T. Wittchen has authored 11 papers receiving a total of 368 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Electrical and Electronic Engineering, 6 papers in Aerospace Engineering and 5 papers in Renewable Energy, Sustainability and the Environment. Recurrent topics in T. Wittchen's work include Silicon and Solar Cell Technologies (6 papers), Calibration and Measurement Techniques (6 papers) and Photovoltaic System Optimization Techniques (3 papers). T. Wittchen is often cited by papers focused on Silicon and Solar Cell Technologies (6 papers), Calibration and Measurement Techniques (6 papers) and Photovoltaic System Optimization Techniques (3 papers). T. Wittchen collaborates with scholars based in Germany, United States and Russia. T. Wittchen's co-authors include H. J. Queisser, Sabine Kolodinski, J.H. Werner, J. Metzdorf, S. Winter, Keith Emery, Ryuichi Shimokawa, A. K. Barua, A. Zastrow and C.R. Osterwald and has published in prestigious journals such as Applied Physics Letters, Progress in Photovoltaics Research and Applications and Metrologia.

In The Last Decade

T. Wittchen

11 papers receiving 336 citations

Peers

Countries citing papers authored by T. Wittchen

Since Specialization

Citations

This map shows the geographic impact of T. Wittchen'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 T. Wittchen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Wittchen more than expected).

Fields of papers citing papers by T. Wittchen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of T. Wittchen

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

All Works

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11 of 11 papers shown

#	Work	Indexed citations
1	Aspects of quality assurance in monitoring solar UV irradiance 2003 ·Metrologia ·J. Metzdorf, K D Stock, Peter Sperfeld, (unknown), S. Winter, T. Wittchen	13
2	The World Photovoltaic Scale: an international reference cell calibration program 2002 ·C.R. Osterwald, (unknown), A. K. Barua, Phalguni Chaudhuri, J. Dubard, Keith Emery, B.R. Hansen, David J. King, J. Metzdorf, (unknown), Ryuichi Shimokawa, (unknown), T. Wittchen, Willem Zaaiman, A. Zastrow, (unknown)	5
3	Objectives and results of the PEP'87 round-robin calibration of reference solar cells and modules 2002 ·Fraunhofer-Publica (Fraunhofer-Gesellschaft) ·J. Metzdorf, T. Wittchen, (unknown), K. Dehne, Ryuichi Shimokawa, (unknown), H. Ossenbrink, L. Fornarini, (unknown), (unknown), Keith Emery, R. DeBlasio	11
4	Radiometry in photovoltaics: calibration of reference solar cells and evaluation of reference values 2000 ·Metrologia ·J. Metzdorf, S. Winter, T. Wittchen	26
5	The world photovoltaic scale: an international reference cell calibration program 1999 ·Progress in Photovoltaics Research and Applications ·C.R. Osterwald, (unknown), Klaus Bücher, A. K. Barua, Phalguni Chaudhuri, J. Dubard, Keith Emery, B.R. Hansen, David King, J. Metzdorf, (unknown), Ryuichi Shimokawa, (unknown), T. Wittchen, Willem Zaaiman, A. Zastrow, (unknown)	44
6	Results of the PEP'93 intercomparison of reference cell calibrations and newer technology performance measurements 1996 ·OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) ·C.R. Osterwald, (unknown), A. K. Barua, J. Dubard, Keith Emery, David King, J. Metzdorf, (unknown), Ryuichi Shimokawa, (unknown), (unknown), T. Wittchen, Willem Zaaiman, A. Zastrow, (unknown)	17
7	Quantum efficiencies exceeding unity due to impact ionization in silicon solar cells 1993 ·Applied Physics Letters ·Sabine Kolodinski, J.H. Werner, T. Wittchen, H. J. Queisser	227
8	Principle and Application of Differential Spectroradiometry 1991 ·Metrologia ·J. Metzdorf, (unknown), T. Wittchen, (unknown)	15
9	The Results of the PEP '87 Round-Robin Calibration of Reference Cells and Modules,- Final Report 1990 ·J. Metzdorf, T. Wittchen, (unknown), K. Dehne, Ryuichi Shimokawa, (unknown), H. Ossenbrink, L. Fornarini, (unknown), (unknown), Keith Emery, R. DeBlasio	7
10	Solar cell calibration and characterization: simplified DSR apparatus 1988 ·T. Wittchen, (unknown), (unknown), (unknown), J. Metzdorf	2
11	Absolute indoor calibration of large area solar cells 1986 ·J. Metzdorf, T. Wittchen, (unknown)	1

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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