Encender

ENCENDER: Bright or Dark - Regulation of Radiative vs. Nonradiative Processes in Novel Conjugated Organic Materials
Financed through MICIN-FEDER 09/2023-08/2027, Ref. PID2022-138222NB-C21. Coordinated project between IMDEA Nanoscience (PI: J. Gierschner) and Univ. Valencia (PI: Begoña Milián Medina).

Researchers involved:
Dr. Johannes Gierschner (PI, PL spectroscopy, modelling)
Dr. Begoña Milián Medina (PI, quantum chemistry)
Dr. Indranil Bhattacharjee (spectroscopy)
Siyang Feng (PhD student; spectroscopy)
Liangxuan Wang (PhD student; QM, MD calcs.)

Inhouse Collaborations:
IMDEA Nanoscience
Dr. Reinhold Wannemacher (lowT Spectroscopy)
Dr. Juan Cabanillas (Pump-Probe Spectroscopy)
University of Valencia
Dr. Rafael Ballesteros (Materials)
Dr. Daniel Roca Sanjuán (Multi-Reference methods)

External Collaborations:

Prof. Dr. Minsang Kwon, Seoul National University (Materials)
Prof. Dr. Soo Young Park, Seoul National University (Materials)
Prof. Dr. Zengqi Xie, SCUT (Materials)
Prof. Dr. Jinsang Kim, Univ. Michigan, Ann Arbor (Materials)
Prof. Dr. Alfred Meixner, Univ. Tübingen (Single Molecule Spectr.)
Prof. Dr. Roland Resel, Univ. Graz (SXRD)
Dr. Javier Cerezo, Univ. Autónoma Madrid (QM/MD modelling)
Prof. Dr. Martial Boggio-Pasqua, Univ. Toulouse (Spin-Flip DFT)
Industry:
InSiloBio
SynChimia
FlexTerra
News:
Angularly Resolved Tip-Enhanced Raman Spectroscopy
F. Schneider, T. Parker, L. Wang, M. Rebmann, Y. Zhao, E. Juriatti, H. Peisert, A. J. Meixner, J. Gierschner, L. Meng, D. Zhang, Angew. Chem. Int. Ed. 2025, 64, e202506152.

Elucidating the Molecular Structural Origin of Efficient Emission Across Solid and Solution Phases of Single Benzene Fluorophores
J.-M. Heo, J. Park, M. F. Flórez-Angarita, L. Wang, C. Yu, J. Choi, H. Woo, B. Milián-Medina, A. J. Matzger, M. S. Kwon, J. Gierschner, J. Kim, Nat. Commun. 2025, 16, 5560.

1,6-Diazapyrene: A Well-Defined Small-Size Prototype System for Nitrogen-containing PAHs
I. Bhattacharjee, L. Wang, N. Gonzalez-Sanchis, B. Milián-Medina, R. Wannemacher, R. Ballesteros, R. Ballesteros-Garrido, J. Gierschner, J. Phys. Chem. A 2025, 129, 4471-4479.

Organic Photocatalyst Utilizing Triplet Excited States for Highly Efficient Visible-Light-Driven Polymerizations
Y. Kwon, W. Jeon, J. Gierschner, M. S. Kwon, Acc. Chem. Res. 2025, 58, 1581-1595.

Synthesis and Photophysics of Color-Pure Blue Emitters Featuring Oxaboraphenanthrene as a Novel Structural Motif
S. Song, S. Feng, L. Wang, B. Milián-Medina, R. Wannemacher, J. Gierschner, M. S. Kwon, Tetrahedron 2025, 175, 134522.

Paper and Pencil Design of Color-Pure Organic Emitters: The Curious Case of Xanthene Dyes
M. Eskandari, L. Wang, B. Milián-Medina, J. Gierschner, J. Phys. Chem. A 2025, 129, 1599-1608.

Fluorescence Modulation through the Inverted Energy Gap Law in Triply N–B←N-Containing Windmill-Shaped Triazines
Y. Feng, L. Wang, H. Gao, J. Zhou, M. Stolte, H. Qiu, L. Liu, V. Adebayo, M. Boggio-Pasqua, F. Würthner, J. Gierschner, Z. Xie, Angew. Chem. Int. Ed. 2025, 137, e202416425.

Higher-Order Cavity Modes for SERS in a Gold Nanosphere-on-Mirror Configuration
F. Schneider, L. Lang, L. Wang, J. Gierschner, A. Meixner, M. Fleischer, D. Zhang, J. Phys. Chem. C 2024, 128, 18807–18819.

Rational Design of Color-Pure Blue Organic Emitters by Poly-Heteroaromatic Omni-Delocalization
S. Song, S. Feng, L. Wang, J. Jun, B. Milián-Medina, R. Wannemacher, J. Lee, M. S. Kwon, J. Gierschner, Adv. Mater. 2024, 36, 2404388.

Deuterium Isotope Effect in Single Molecule Photophysics and Photochemistry of Hypericin
L. Wang, Q. Liu, A. Buchwald, F. Wackenhut, M. Brecht, J. Gierschner, A. J. Meixner, ChemPhysChem 2024, 25, e202400374.

Molecular Packing Topology and Interactions to Decipher Mechanical Compliances in Dicyano-distyrylbenzene Derivatives
M. Ghora, R. K. Manna, S. K. Park, S. Oh, S.-I. Kim, S. Y. Park, J. Gierschner, S. Varghese, Chem. Eur. J. 2024, 30, e202401023.

Explicit Modelling of Spectral Bandshapes by a Mixed Quantum-Classical Approach: Solvent Order and Temperature Effects in the Optical Spectra of Distyrylbenzene
J. Cerezo, J. Gierschner, F. Santoro, G. Prampolini, ChemPhysChem 2024, 25, e202400307.

Ultraviolet Light Blocking Optically Clear Adhesives for Foldable Displays via Highly Efficient Visible-Light Curing
Y. Kwon, S. Lee, J. Kim, J. Jun, W. Jeon, Y. Park, H.-J. Kim, J. Gierschner, J. Lee, Y. Kim, M. S. Kwon, Nature Commun. 2024, 15, 2829.

Donor-Acceptor-Donor Triads with Flexible Spacers: Deciphering Complex Photophysics for Targeted Materials Design
S. Feng, L. Wang, B. Milián-Medina, A. J. Meixner, M. S. Kwon, S. Y. Park, R. Wannemacher, J. Gierschner, Adv. Mater. 2023, 35, 2306678.