contact

Joshua Esteves, M.Sc.

Heidelberg University    Institute of Organic Chemistry	Karlsruhe Institute of Technology Light Technology Institute
Im Neuenheimer Feld 272    69120 Heidelberg    Room 02.003	Engesserstraße 13 76131 Karlsruhe
Phone: Office: +49 (0) 6221 54 4379                 Lab:    +49 (0) 6221 54 4229	Phone: Office:               Lab:
Email: joshua.esteves@oci.uni-heidelberg.de	Email: joshua.esteves@kit.edu

Research Experience

• Since 2025 
  PhD studies Novel self-assembled monolayer charge transport layers for Perovskite photovoltaics
  Joint project with Prof. Ulrich Paetzold (KIT)
  Website: KIT - Research at IMT - Next Generation Photovoltaics - Paetzold Lab - Advanced Optics and Materials for next Gen PV (AMP)

• 2025
  Master thesis Implementation of novel self-assembled monolayers for use as hole transport layers in Perovskite solar cells
  In the group of Prof. Ulrich Paetzold (KIT)

Publications

1. Thiophene Containing Polycyclic Aromatic Hydrocarbon Monkey Saddles
   T. Kirschbaum, C. Daiber, J. A. Esteves, B. P. Benke, F. Rominger, S. M. Elbert, M. Mastalerz
   Asian J. Org. Chem. 2025, 14, e202500394
   DOI: 10.1002/ajoc.202500394

2. Pyrene-Based Diarynes as Precursors for Twisted Fused Polycyclic Aromatic Hydrocarbons: A Comparison of Two Routes
   S. M. Elbert, K. Baumgärtner, J. A. Esteves, L. Weber, F. Rominger, M. Mastalerz
   Organic Materials 2020, 2, 358
   DOI: 10.1055/s-0040-1721851

​

  

Moritz Leonhardt, M.Sc.

 

Institute of Organic Chemistry

Im Neuenheimer Feld 272
69120 Heidelberg
Room 02.003

Phone: Office: +49 (0) 6221 54 4379
             Lab:    +49 (0) 6221 54 4229

Email: moritz.leonhardt@oci.uni-heidelberg.de

​

Research Experience

• Since 2025 
  PhD studies Synthesis and Functionalization of Defect PAHs

• 2025
  Master thesis 1,4,5,8-Tetrabromonaphthalene as Entry into Naphthalene-Based PAHs

Publications

1. Naphthyl-Separated Stone-Wales Defect-Type Nanographene via Scholl Cyclization of Tetra(1-naphthyl)naphthalene
   E. Misselwitz, L. Martins, M. Leonhardt, J. Hellmann, F. Rominger, M. Kivala
   Org. Lett. 2025, 27, 9019
   DOI: 10.1021/acs.orglett.5c02721

​

  

Angelina Jocic, M.Sc.

 

Institute of Organic Chemistry

Im Neuenheimer Feld 272
69120 Heidelberg
Room 02.003

Phone: Office: +49 (0) 6221 54 4379
             Lab:    +49 (0) 6221 54 4229

Email: jocic@oci.uni-heidelberg.de

​

Research Experience

• Since 2021 
  PhD studies Synthesis and Studies on Functional Spiro-Cyclic Scaffolds

• 2021
  Master thesis Synthesis and Functionalization of Spiro Bridged Triphenylamines

Publications

1. Donor-Substituted C(sp³)-Bridged Phosphorus-Heterotriangulenes as Blue Thermally Activated Delayed Fluorescence Emitters
   M. Schöner, A. Jocic, S. Harrer, M. Fatahi, J. Maurmann, A. Reule, F. Rominger, E. Zysman-Colman, M. Kivala
   Adv. Opt. Mat. 2026, accepted
   DOI: 10.1002/adom.202503851

2. Switching of Supramolecular Nanostructures at the Solid-Liquid Interface: Interplay of Bias Polarity and Solution Concentration
   B. Jia, M. Enache, B. D. Gliemann, A. Jocic, M. Kivala, M. Stöhr
   Nanoscale Adv. 2025, 7, 4897
   DOI: 10.1039/D5NA00289C

3. Photochemistry upon Charge Separation in Triphenylamine Derivatives from fs to µs
   H. J. Brockmann, L. Huang, F. Hainer, D. Galindo, A. Jocic, J. Han, M. Kivala, A. Dreuw, T. Buckup
   J. Phys. Chem. B 2025, 129, 3207
   DOI: 10.1021/acs.jpcb.4c07199

4. Redox-Active, Photoluminescent Porous Polymers Based on Spirofluorene-Bridged N-Heterotriangulenes and Their Feasibility as Organic Cathode Materials
   A. Jocic, T. Wickenhäuser, S. Lindenthal, W.-S. Zhang, J. Zaumseil, R. Schröder, R. Klingeler, M. Kivala
   Chem. Sci. 2024, 15, 19094
   DOI: 10.1039/D4SC04276J

5. Control of Photoinduced Charge Transfer Through Selective Cyanation of Spirofluorene-bridged N-Heterotriangulenes
   A. Jocic, D. Galindo, A. Weidlich, J. Zerhoch, F. Rominger, T. Buckup, F. Deschler, A. Dreuw, M. Kivala
   Adv. Opt. Mater. 2024, 12, 2401656
   DOI: 10.1002/adom.202401656

6. Redox-Active Lewis Pairs Yield Diradicaloids and Enable Modular Control of the Diradical Character
   R. Maskey, T. Thorwart, S. F. Ebel, A. Jocic, D. Hartmann, L. Greb
   Chem. Eur. J. 2023, e202300269
   DOI: 10.1002/chem.202300269

7. Azaarene Dimers
   S. Hahn, J. Butscher, Q. An, A. Jocic, O. Tverskoy, M. Richter, X. Feng, F. Rominger, Y. Vaynzof, U. H. F. Bunz
   Chem. Eur. J. 2019, 25, 7285
   DOI: 10.1002/chem.201901139

​

  

Leon Martins, M.Sc.

 

Institute of Organic Chemistry

Im Neuenheimer Feld 272
69120 Heidelberg
Room 00.001

Phone: Office: +49 (0) 6221 54 6408
             Lab:    +49 (0) 6221 54 8433

Email: leon.martins@oci.uni-heidelberg.de

​

Research Experience

• Since 2022 
  PhD studies Polycyclic Aromatic Hydrocarbons Containing 8-Membered Rings

• 2021
  Master thesis Dibenzo[a,e]cyclooctadiyne as Entry Into Octagon-Centered Polycyclic Aromatic Hydrocarbons

Publications

1. Naphthyl-Separated Stone-Wales Defect-Type Nanographene via Scholl Cyclization of Tetra(1-naphthyl)naphthalene
   E. Misselwitz, L. Martins, M. Leonhardt, J. Hellmann, F. Rominger, M. Kivala
   Org. Lett. 2025, 27, 9019
   DOI: 10.1021/acs.orglett.5c02721

2. Azobenzene Substituted Triptycenes – Understanding Exciton Coupling of Molecular Switches in Close Proximity
   A. Kunz, N. Oberhof, F. Scherz, L. Martins, A. Dreuw, H. A. Wegner
   Chem. Eur. J. 2022, 28, e202200972
   DOI: 10.1002/chem.202200972

 

 

Sven Mühl, M.Sc.

 

Institute of Organic Chemistry

Im Neuenheimer Feld 272
69120 Heidelberg
Room 02.003

Phone: Office: +49 (0) 6221 54 4379
             Lab:    +49 (0) 6221 54 4229

Email: sven.muehl@oci.uni-heidelberg.de

​

Research Experience

• Since 2023 
  PhD studies Synthesis and Functionalization of Defect PAHs

• 2023
  Master thesis Synthesis of π-Expanded Heteropines

 

Leon Müller, M.Sc.

 

Institute of Organic Chemistry

Im Neuenheimer Feld 272
69120 Heidelberg
Room 02.003

Phone: Office: +49 (0) 6221 54 4379
             Lab:    +49 (0) 6221 54 4229

Email: leon.mueller@oci.uni-heidelberg.de

​

Research Experience

• Since 2025 
  PhD studies Synthesis and Studies on Functional Spiro-Cyclic Scaffolds

• 2025
  Master thesis Synthesis of Spiro-Bridged N-Heterotriangulene-Based Cages

Publications

1. Influence of Core Substitution on the Electronic Structure of Benzobisthiadiazoles
   M. Ajdari, R. Pappenberger, C. Annweiler, T. Kaczun, L. Müller, L. Winkelmann, L. Ahrens, U. H. F. Bunz, A. Dreuw, P. Tegeder
   J. Phys. Chem. C 2024, 128, 4060
   DOI: 10.1021/acs.jpcc.3c08253

 

Maximilian Schöner, M.Sc.

 

Institute of Organic Chemistry

Im Neuenheimer Feld 272
69120 Heidelberg
Room 00.001

Phone: Office: +49 (0) 6221 54 6408
             Lab:    +49 (0) 6221 54 8433

Email: maximilian.schoener@oci.uni-heidelberg.de

​

Research Experience

• Since 2023 
  PhD studies Organophosphorus Functional Materials

• 2022
  Master thesis π-Expanded Heteroolympicenes

Publications

1. Donor-Substituted C(sp³)-Bridged Phosphorus-Heterotriangulenes as Blue Thermally Activated Delayed Fluorescence Emitters
   M. Schöner, A. Jocic, S. Harrer, M. Fatahi, J. Maurmann, A. Reule, F. Rominger, E. Zysman-Colman, M. Kivala
   Adv. Opt. Mat. 2026, accepted
   DOI: 10.1002/adom.202503851

2. Bistriazoles Connected Through a B−B Bridge, Synthesized by Highly Selective Dipolar Cycloaddition Reactions of a Diazido-diborane(4)
   D. Vogler, M. Schöner, E. Kaifer, H.-J. Himmel
   Chem. Eur. J. 2022, 28, e202201389
   DOI: 10.1002/chem.202201389

3. Synthesis of Symmetrically and Unsymmetrically Substituted Cationic Diborane(4) Compounds with Distinct Structural Motifs and Properties
   E. Filbeck, L. Kistner, D. Vogler, B. Gasser, L. Flórido Martins, M. Schöner, E. Kaifer, H.-J. Himmel
   Eur. J. Org. Chem. 2022, e202201105
   DOI: 10.1002/ejoc.202201105