Steffen Roland

2.6k total citations · 1 hit paper
25 papers, 2.3k citations indexed

About

Steffen Roland is a scholar working on Electrical and Electronic Engineering, Polymers and Plastics and Radiation. According to data from OpenAlex, Steffen Roland has authored 25 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Electrical and Electronic Engineering, 15 papers in Polymers and Plastics and 4 papers in Radiation. Recurrent topics in Steffen Roland's work include Organic Electronics and Photovoltaics (19 papers), Conducting polymers and applications (15 papers) and Perovskite Materials and Applications (8 papers). Steffen Roland is often cited by papers focused on Organic Electronics and Photovoltaics (19 papers), Conducting polymers and applications (15 papers) and Perovskite Materials and Applications (8 papers). Steffen Roland collaborates with scholars based in Germany, United States and France. Steffen Roland's co-authors include Dieter Neher, Juliane Kniepert, Mathieu Turbiez, L. Jan Anton Koster, Davide Bartesaghi, Antonio Facchetti, Marcel Schubert, Zhihua Chen, Steve Albrecht and Harald Ade and has published in prestigious journals such as Journal of the American Chemical Society, Advanced Materials and Nature Communications.

In The Last Decade

Steffen Roland

25 papers receiving 2.3k 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.

Competition between recombination and extraction of free charges determines the fill factor of organic solar cells

2015 545 citations Davide Bartesaghi, Juliane Kniepert et al. Nature Communications profile →

Peers

Countries citing papers authored by Steffen Roland

Since Specialization

Citations

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

Fields of papers citing papers by Steffen Roland

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Steffen Roland

This figure shows the co-authorship network connecting the top 25 collaborators of Steffen Roland. A scholar is included among the top collaborators of Steffen Roland 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 Steffen Roland. Steffen Roland 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

#	Work	Indexed citations
1	On the Interplay between CT and Singlet Exciton Emission in Organic Solar Cells with Small Driving Force and Its Impact on Voltage Loss 2022 ·Advanced Energy Materials ·Tobias Fritsch, Jona Kurpiers, Steffen Roland, Nurlan Tokmoldin, Safa Shoaee, Thomas Ferron, Brian A. Collins, Silvia Janietz, Koen Vandewal, Dieter Neher	20
2	Open-circuit voltage of organic solar cells: interfacial roughness makes the difference 2022 ·Communications Physics ·Carl Poelking, Johannes Benduhn, Donato Spoltore, Martin Schwarze, Steffen Roland, Fortunato Piersimoni, Dieter Neher, Karl Leo, Koen Vandewal, Denis Andrienko	9
3	Adjusting the energy of interfacial states in organic photovoltaics for maximum efficiency 2021 ·Nature Communications ·Nicola Gasparini, Franco V. A. Camargo, (unknown), Tetsuhiko Nagahara, Andrej Classen, Steffen Roland, Andrew Wadsworth, Vasilis G. Gregoriou, Christos L. Chochos, Dieter Neher, Michaël Salvador, Derya Baran, Iain McCulloch, Andreas Görling, Larry Lüer, Giulio Cerullo, Christoph J. Brabec	48
4	Impact of molecular quadrupole moments on the energy levels at organic heterojunctions 2019 ·Nature Communications ·Martin Schwarze, Karl Sebastian Schellhammer, Katrin Ortstein, Johannes Benduhn, Christopher Gaul, Alexander Hinderhofer, Lorena Perdigón‐Toro, Reinhard Scholz, Jonas Kublitski, Steffen Roland, (unknown), Carl Poelking, Denis Andrienko, Gianaurelio Cuniberti, Frank Schreiber, Dieter Neher, Koen Vandewal, Frank Ortmann, Karl Leo	117
5	Emissive and charge-generating donor–acceptor interfaces for organic optoelectronics with low voltage losses 2019 ·Nature Materials ·Sascha Ullbrich, Johannes Benduhn, Xiangkun Jia, Vasileios C. Nikolis, Kristofer Tvingstedt, Fortunato Piersimoni, Steffen Roland, Yuan Liu, (unknown), Axel Fischer, Dieter Neher, Sebastian Reineke, Donato Spoltore, Koen Vandewal	148
6	Equilibrated Charge Carrier Populations Govern Steady-State Nongeminate Recombination in Disordered Organic Solar Cells 2019 ·The Journal of Physical Chemistry Letters ·Steffen Roland, Juliane Kniepert, John A. Love, (unknown), Feilong Liu, P. A. Bobbert, Armantas Melianas, Martijn Kemerink, Andreas Hofacker, Dieter Neher	15
7	Probing the pathways of free charge generation in organic bulk heterojunction solar cells 2018 ·Nature Communications ·Jona Kurpiers, Thomas Ferron, Steffen Roland, Marius Jakoby, Tobias Thiede, Frank Jaiser, Steve Albrecht, Silvia Janietz, Brian A. Collins, Ian A. Howard, Dieter Neher	115
8	On the Molecular Origin of Charge Separation at the Donor–Acceptor Interface 2018 ·Advanced Energy Materials ·Gjergji Sini, Marcel Schubert, Chad Risko, Steffen Roland, Olivia P. Lee, Zhihua Chen, Thomas V. Richter, Daniel Dolfen, Veaceslav Coropceanu, Sabine Ludwigs, Ullrich Scherf, Antonio Facchetti, Jean M. J. Fréchet, Dieter Neher	54
9	Impact of interfacial molecular orientation on radiative recombination and charge generation efficiency 2017 ·Nature Communications ·Niva A. Ran, Steffen Roland, John A. Love, Victoria Savikhin, Christopher J. Takacs, Yao‐Tsung Fu, Hong Li, Veaceslav Coropceanu, Xiaofeng Liu, Jean‐Luc Brédas, Guillermo C. Bazan, Michael F. Toney, Dieter Neher, Thuc‐Quyen Nguyen	210
10	Charge Generation and Mobility-Limited Performance of Bulk Heterojunction Solar Cells with a Higher Adduct Fullerene 2017 ·The Journal of Physical Chemistry C ·Steffen Roland, Liang Yan, Qianqian Zhang, Xuechen Jiao, Adrian Hunt, Masoud Ghasemi, Harald Ade, Wei You, Dieter Neher	17
11	Hybrid Organic/Inorganic Thin‐Film Multijunction Solar Cells Exceeding 11% Power Conversion Efficiency 2015 ·Advanced Materials ·Steffen Roland, Sebastian Neubert, Steve Albrecht, Bernd Stannowski, (unknown), Antonio Facchetti, Rutger Schlatmann, B. Rech, Dieter Neher	40
12	Competition between recombination and extraction of free charges determines the fill factor of organic solar cells breakdown → 2015 ·Nature Communications ·Davide Bartesaghi, (unknown), Juliane Kniepert, Steffen Roland, Mathieu Turbiez, Dieter Neher, L. Jan Anton Koster	545
13	Mobility-Controlled Performance of Thick Solar Cells Based on Fluorinated Copolymers 2014 ·Journal of the American Chemical Society ·Wentao Li, Steve Albrecht, Liqiang Yang, Steffen Roland, John R. Tumbleston, Terry McAfee, Liang Yan, Mary Allison Kelly, Harald Ade, Dieter Neher, Wei You	255
14	Correlated Donor/Acceptor Crystal Orientation Controls Photocurrent Generation in All‐Polymer Solar Cells 2014 ·Advanced Functional Materials ·Marcel Schubert, Brian A. Collins, Hannah Mangold, Ian A. Howard, Wolfram Schindler, Koen Vandewal, Steffen Roland, Jan Behrends, Felix Kraffert, Robert Steyrleuthner, Zhihua Chen, Konstantinos Fostiropoulos, Robert Bittl, Alberto Salleo, Antonio Facchetti, Frédéric Laquai, Harald Ade, Dieter Neher	140
15	Fullerene-Free Polymer Solar Cells with Highly Reduced Bimolecular Recombination and Field-Independent Charge Carrier Generation 2014 ·The Journal of Physical Chemistry Letters ·Steffen Roland, Marcel Schubert, Brian A. Collins, Jona Kurpiers, Zhihua Chen, Antonio Facchetti, Harald Ade, Dieter Neher	42
16	Efficiency-Limiting Processes in Low-Bandgap Polymer:Perylene Diimide Photovoltaic Blends 2014 ·The Journal of Physical Chemistry C ·Dominik Gehrig, Steffen Roland, Ian A. Howard, Valentin Kamm, Hannah Mangold, Dieter Neher, Frédéric Laquai	30
17	Influence of Aggregation on the Performance of All‐Polymer Solar Cells Containing Low‐Bandgap Naphthalenediimide Copolymers 2012 ·Advanced Energy Materials ·Marcel Schubert, Daniel Dolfen, Johannes Frisch, Steffen Roland, Robert Steyrleuthner, Burkhard Stiller, Zhihua Chen, Ullrich Scherf, Norbert Koch, Antonio Facchetti, Dieter Neher	313
18	Interference phenomenon in optical transition radiation and its application to particle beam diagnostics and multiple-scattering measurements 1975 ·Journal of Applied Physics ·L. Wartski, Steffen Roland, J. Lasalle, (unknown), (unknown)	126
19	Rayonnement de transition dans le domaine optique, produit par des électrons de 40–60 MeV à la traversée de lames métalliques 1973 ·Nuclear Instruments and Methods ·L. Wartski, J. Marcou, A. Papiernik, Steffen Roland, (unknown), (unknown)	5
20	Detection of Optical Transition Radiation and Its Application to Beam Diagnostics 1973 ·IEEE Transactions on Nuclear Science ·L. Wartski, J. Marcou, Steffen Roland	18

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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