Sascha Ullbrich

1.7k total citations · 1 hit paper
13 papers, 1.4k citations indexed

About

Sascha Ullbrich is a scholar working on Electrical and Electronic Engineering, Polymers and Plastics and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Sascha Ullbrich has authored 13 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Electrical and Electronic Engineering, 7 papers in Polymers and Plastics and 2 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Sascha Ullbrich's work include Organic Electronics and Photovoltaics (11 papers), Conducting polymers and applications (6 papers) and Perovskite Materials and Applications (4 papers). Sascha Ullbrich is often cited by papers focused on Organic Electronics and Photovoltaics (11 papers), Conducting polymers and applications (6 papers) and Perovskite Materials and Applications (4 papers). Sascha Ullbrich collaborates with scholars based in Germany, China and Belgium. Sascha Ullbrich's co-authors include Koen Vandewal, Donato Spoltore, Johannes Benduhn, Olaf Zeika, Dieter Neher, Bernhard Siegmund, Fortunato Piersimoni, Kristofer Tvingstedt, Karl Leo and Andreas Mischok and has published in prestigious journals such as Advanced Materials, Nature Communications and Nature Materials.

In The Last Decade

Sascha Ullbrich

13 papers receiving 1.4k 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.

Intrinsic non-radiative voltage losses in fullerene-based organic solar cells

2017 590 citations Johannes Benduhn, Kristofer Tvingstedt et al. Nature Energy profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Sascha Ullbrich Germany	12	1.3k	806	315	144	101	13	1.4k
Yanlian Lei China	20	1.4k 1.0×	617 0.8×	532 1.7×	235 1.6×	167 1.7×	88	1.6k
Vasileios C. Nikolis Germany	11	1.0k 0.8×	631 0.8×	233 0.7×	128 0.9×	145 1.4×	13	1.2k
Jonas Kublitski Germany	15	1.2k 0.9×	590 0.7×	383 1.2×	193 1.3×	147 1.5×	22	1.4k
Jean‐Marie Verilhac France	19	995 0.8×	542 0.7×	329 1.0×	130 0.9×	83 0.8×	35	1.1k
Daniel Kasemann Germany	18	1.4k 1.1×	639 0.8×	483 1.5×	272 1.9×	152 1.5×	29	1.6k
Alana L. Dixon United States	11	1.1k 0.9×	824 1.0×	270 0.9×	154 1.1×	53 0.5×	11	1.2k
Mohsen Elain Hajlaoui Tunisia	11	1.2k 0.9×	389 0.5×	301 1.0×	176 1.2×	130 1.3×	18	1.4k
Kurt P. Pernstich Switzerland	17	1.1k 0.8×	366 0.5×	300 1.0×	132 0.9×	137 1.4×	23	1.2k
Akchheta Karki United States	21	2.2k 1.7×	1.7k 2.1×	282 0.9×	225 1.6×	153 1.5×	27	2.4k
Lianbin Niu China	17	1.3k 1.0×	845 1.0×	361 1.1×	143 1.0×	64 0.6×	54	1.4k

Countries citing papers authored by Sascha Ullbrich

Since Specialization

Citations

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

Fields of papers citing papers by Sascha Ullbrich

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sascha Ullbrich

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

All Works

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13 of 13 papers shown

Wang, Yazhong, Bernhard Siegmund, Zheng Tang, et al.. (2020). Stacked Dual‐Wavelength Near‐Infrared Organic Photodetectors. Advanced Optical Materials. 9(6). 67 indexed citations

Wang, Jing, Sascha Ullbrich, Donato Spoltore, et al.. (2019). Organic Cavity Photodetectors Based on Nanometer-Thick Active Layers for Tunable Monochromatic Spectral Response. ACS Photonics. 6(6). 1393–1399. 40 indexed citations

Ullbrich, Sascha, Johannes Benduhn, Xiangkun Jia, et al.. (2019). Emissive and charge-generating donor–acceptor interfaces for organic optoelectronics with low voltage losses. Nature Materials. 18(5). 459–464. 148 indexed citations

Shivhare, Rishi, Tim Erdmann, Ulrich Hörmann, et al.. (2018). Alkyl Branching Position in Diketopyrrolopyrrole Polymers: Interplay between Fibrillar Morphology and Crystallinity and Their Effect on Photogeneration and Recombination in Bulk-Heterojunction Solar Cells. Chemistry of Materials. 30(19). 6801–6809. 14 indexed citations

Spoltore, Donato, Andreas Hofacker, Johannes Benduhn, et al.. (2018). Hole Transport in Low-Donor-Content Organic Solar Cells. The Journal of Physical Chemistry Letters. 9(18). 5496–5501. 36 indexed citations

Ullbrich, Sascha, Axel Fischer, Zheng Tang, et al.. (2018). Electrothermal Feedback and Absorption-Induced Open-Circuit-Voltage Turnover in Solar Cells. Physical Review Applied. 9(5). 14 indexed citations

Сергеева, Н. С., Sascha Ullbrich, Andreas Hofacker, Christian Koerner, & Karl Leo. (2018). Structural Defects in Donor-Acceptor Blends: Influence on the Performance of Organic Solar Cells. Physical Review Applied. 9(2). 14 indexed citations

Siegmund, Bernhard, Andreas Mischok, Johannes Benduhn, et al.. (2017). Organic narrowband near-infrared photodetectors based on intermolecular charge-transfer absorption. Nature Communications. 8(1). 15421–15421. 260 indexed citations

Benduhn, Johannes, Kristofer Tvingstedt, Fortunato Piersimoni, et al.. (2017). Intrinsic non-radiative voltage losses in fullerene-based organic solar cells. Nature Energy. 2(6). 590 indexed citations breakdown →

10.

Tang, Zheng, Zaifei Ma, Antonio Sánchez‐Díaz, et al.. (2017). Polymer:Fullerene Bimolecular Crystals for Near‐Infrared Spectroscopic Photodetectors. Advanced Materials. 29(33). 179 indexed citations

11.

Ullbrich, Sascha, Bernhard Siegmund, Andreas Mischok, et al.. (2017). Fast Organic Near-Infrared Photodetectors Based on Charge-Transfer Absorption. The Journal of Physical Chemistry Letters. 8(22). 5621–5625. 47 indexed citations

12.

Widmer, Johannes, Johannes Benduhn, Sascha Ullbrich, et al.. (2015). Influence of side groups on the performance of infrared absorbing aza‐BODIPY organic solar cells. physica status solidi (a). 212(12). 2747–2753. 31 indexed citations

13.

Thomschke, Michael, Sascha Ullbrich, Karsten Fehse, et al.. (2015). On/off-ratio dependence of bulk hetero junction photodiodes and its impact on electro-optical properties. Microelectronic Engineering. 152. 20–25. 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.

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