Joop Knol

2.5k total citations · 1 hit paper
19 papers, 2.1k citations indexed

About

Joop Knol is a scholar working on Organic Chemistry, Electrical and Electronic Engineering and Materials Chemistry. According to data from OpenAlex, Joop Knol has authored 19 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Organic Chemistry, 11 papers in Electrical and Electronic Engineering and 7 papers in Materials Chemistry. Recurrent topics in Joop Knol's work include Fullerene Chemistry and Applications (13 papers), Organic Electronics and Photovoltaics (10 papers) and Synthesis and Properties of Aromatic Compounds (4 papers). Joop Knol is often cited by papers focused on Fullerene Chemistry and Applications (13 papers), Organic Electronics and Photovoltaics (10 papers) and Synthesis and Properties of Aromatic Compounds (4 papers). Joop Knol collaborates with scholars based in Netherlands, Austria and Italy. Joop Knol's co-authors include Jan C. Hummelen, René A. J. Janssen, Paul A. van Hal, Wiljan Verhees, Jan Kroon, Martijn M. Wienk, Floris B. Kooistra, J.C. Hummelen, Stefan C. J. Meskers and Emiel Peeters and has published in prestigious journals such as Journal of the American Chemical Society, Advanced Materials and Angewandte Chemie International Edition.

In The Last Decade

Joop Knol

19 papers receiving 2.1k 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.

Efficient Methano[70]fullerene/MDMO‐PPV Bulk Heterojunction Photovoltaic Cells

2003 1.0k citations Martijn M. Wienk, Jan Kroon et al. Angewandte Chemie International Edition profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Joop Knol Netherlands	13	1.7k	1.2k	860	649	123	19	2.1k
W. Guss Germany	7	1.4k 0.8×	975 0.8×	409 0.5×	725 1.1×	169 1.4×	9	1.9k
J. Pommerehne Germany	12	1.7k 1.0×	1.1k 0.9×	281 0.3×	639 1.0×	99 0.8×	15	2.1k
Olivia P. Lee United States	12	1.9k 1.1×	1.6k 1.3×	330 0.4×	465 0.7×	109 0.9×	16	2.2k
H. Vestweber Germany	20	2.4k 1.4×	1.5k 1.2×	296 0.3×	816 1.3×	128 1.0×	32	2.8k
In‐Nam Kang South Korea	28	2.3k 1.3×	1.9k 1.5×	262 0.3×	447 0.7×	146 1.2×	115	2.6k
Eckhard Birckner Germany	23	761 0.4×	618 0.5×	358 0.4×	502 0.8×	62 0.5×	43	1.3k
Salem Wakim Canada	18	3.3k 1.9×	2.8k 2.3×	620 0.7×	693 1.1×	265 2.2×	26	3.8k
Teresa L. Chen United States	20	1.5k 0.9×	1.3k 1.0×	220 0.3×	491 0.8×	99 0.8×	24	1.8k
Jean‐Rémi Pouliot Canada	16	2.2k 1.2×	2.0k 1.6×	542 0.6×	410 0.6×	132 1.1×	16	2.6k
Selvam Subramaniyan United States	26	2.5k 1.4×	2.1k 1.7×	326 0.4×	425 0.7×	150 1.2×	29	2.7k

Countries citing papers authored by Joop Knol

Since Specialization

Citations

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

Fields of papers citing papers by Joop Knol

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Joop Knol

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

All Works

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19 of 19 papers shown

Kooistra, Floris B., et al.. (2007). Increasing the Open Circuit Voltage of Bulk-Heterojunction Solar Cells by Raising the LUMO Level of the Acceptor. Organic Letters. 9(4). 551–554. 342 indexed citations

Wienk, Martijn M., Jan Kroon, Wiljan Verhees, et al.. (2003). Efficient Methano[70]fullerene/MDMO‐PPV Bulk Heterojunction Photovoltaic Cells. Angewandte Chemie International Edition. 42(29). 3371–3375. 1042 indexed citations breakdown →

Beckers, Edwin H. A., Paul A. van Hal, Stefan C. J. Meskers, et al.. (2003). Charge Transfer Kinetics in Fullerene−Oligomer−Fullerene Triads Containing Alkylpyrrole Units. The Journal of Physical Chemistry A. 107(32). 6218–6224. 33 indexed citations

Meskers, Stefan C. J., et al.. (2003). Photoinduced Multistep Energy and Electron Transfer in an Oligoaniline−Oligo(p-phenylene vinylene)−Fullerene Triad. The Journal of Physical Chemistry A. 107(44). 9269–9283. 32 indexed citations

Wienk, Martijn M., Jan Kroon, Wiljan Verhees, et al.. (2003). Efficient Methano[70]fullerene/MDMO‐PPV Bulk Heterojunction Photovoltaic Cells. Angewandte Chemie. 115(29). 3493–3497. 153 indexed citations

Hal, Paul A. van, Joop Knol, B.M.W. Langeveld-Voss, et al.. (2001). Photoinduced singlet and triplet energy transfer in fullerene–oligothiophene–fullerene triads. Synthetic Metals. 116(1-3). 123–127. 11 indexed citations

Hummelen, Jan C., Joop Knol, & Luis Sánchez. (2001). <title>Stability issues of conjugated polymer/fullerene solar cells from a chemical viewpoint</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4108. 76–84. 9 indexed citations

Dhanabalan, A., Joop Knol, Jan C. Hummelen, & René A. J. Janssen. (2001). Design and synthesis of new processible donor-acceptor dyad and triads. Synthetic Metals. 119(1-3). 519–522. 16 indexed citations

Hal, Paul A. van, Joop Knol, B.M.W. Langeveld-Voss, et al.. (2001). Photoinduced energy and electron transfer in a C60–6T–C60 triad. Synthetic Metals. 121(1-3). 1597–1598. 5 indexed citations

10.

Rispens, Minze T., Luis Sánchez, Joop Knol, & Jan C. Hummelen. (2001). Supramolecular organization of fullerenes by quadruple hydrogen bonding. Chemical Communications. 161–162. 48 indexed citations

11.

Knol, Joop & Jan C. Hummelen. (2000). Photodimerization of a m-Phenylenebis(arylmethanofullerene): The First Rigorous Proof for Photochemical Inter-Fullerene [2 + 2] Cycloaddition. Journal of the American Chemical Society. 122(13). 3226–3227. 25 indexed citations

12.

Hal, Paul A. van, Joop Knol, B.M.W. Langeveld-Voss, et al.. (2000). Photoinduced Energy and Electron Transfer in Fullerene−Oligothiophene−Fullerene Triads. The Journal of Physical Chemistry A. 104(25). 5974–5988. 134 indexed citations

13.

Peeters, Emiel, Paul A. van Hal, Joop Knol, et al.. (2000). Synthesis, Photophysical Properties, and Photovoltaic Devices of Oligo(p-phenylene vinylene)-fullerene Dyads. The Journal of Physical Chemistry B. 104(44). 10174–10190. 217 indexed citations

14.

Apperloo, Joke J., B.M.W. Langeveld-Voss, Joop Knol, J.C. Hummelen, & René A. J. Janssen. (2000). Unexpected Dimerization of Oxidized Fullerene-Oligothiophene-Fullerene Triads. Advanced Materials. 12(12). 908–911. 19 indexed citations

15.

Knol, Joop & Ben L. Feringa. (1997). An Alternative Enantioselective Synthesis of (+)-Tricyclodecadienone. Tetrahedron Letters. 38(14). 2527–2530. 7 indexed citations

16.

Knol, Joop & Ben L. Feringa. (1996). Direct Coupling Procedure for the Synthesis ofN-Acyl-2-oxazolidinones Derived from α,β-Unsaturated Carboxylic Acids. Synthetic Communications. 26(2). 261–268. 10 indexed citations

17.

Knol, Joop, Auke Meetsma, & Ben L. Feringa. (1995). High pressure Diels Alder reactions of 1-Vinyl-2,2,6-trimethylcyclohexene catalyzed by chiral lewis acids; an enantioselective route to a drimane sesquiterpene precursor. Tetrahedron Asymmetry. 6(5). 1069–1072. 14 indexed citations

18.

Knol, Joop & Ben L. Feringa. (1995). One-Pot Procedure for the Synthesis of N-Fumaroyl-2-Oxazolidinones. Synlett. 1995(10). 1025–1026. 4 indexed citations

19.

Knol, Joop, Johan F. G. A. Jansen, F. VAN BOLHUIS, & B.L. Feringa. (1991). Asymmetric diels alder reactions and michael type additions with 6(R)-3′(R)-Pantolactone-substituted-2H-pyran-3(6H)-one.. Tetrahedron Letters. 32(50). 7465–7468. 20 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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