Dr. Bahadur Sk · AURA Lab

Publications

Scholarly record, patents, and conference proceedings.

The complete peer-reviewed publication list of Dr. Bahadur Sk, presented chronologically with DOI links wherever available. Profiles on Google Scholar and ORCID are kept in sync with this record.

Google Scholar ORCID

2026

  • BODIPY-Integrated Porous Materials: Design Principles, Functional Architectures, and Emerging Applications

    Kundu, S.; Ali, F.; Sk, B.

    ACS Appl. Mater. Interface, 2026, DOI:10.1021/acsami.6c10025 (Just Accepted)

    DOI ›

  • Sub-microsecond Delayed Fluorescence Enabled by Molecular Engineering of Triazatruxene Emitters for High-Performance OLEDs with Suppressed Efficiency Rolloff

    Nanda, G. P.; Suraksha, R.; Sk, B.; Dey, S.; Viswanathan, T.; Rajamalli, P.

    Chemrxiv, 2026 (preprint)

    DOI ›

  • Design Strategy for Inducing Delayed Fluorescence via Molecular Flexibility: Structure-Property Relationships in Organic Emitters

    Nanda, G. P.; Dey, S.; Sk, B.; Suraksha, R.; Sanyam; Mondal, A.; Rajamalli, P.

    J. Mater. Chem. C, 2026, DOI:10.1039/d6tc00909c (just accepted)

    DOI ›

2025

  • Synchronizing the nπ* Transition Dipole in a Benzoyl-Linked N-Fused Ring for Highly Efficient Yellow Afterglow

    Sk, B.; Simura, R.; Fujita, K.; Hirata, S.

    J. Phys. Chem. Lett. 2025, 16, 3904–3910

    DOI ›

  • Improving external quantum efficiency and efficiency roll-off in OLEDs: A study on donor linkage and acceptor nitrogen atom position optimization in TADF emitters

    Nanda, G. P.; Suraksha, R.; Sk, B.; Viswanathan, T.; Rajamalli, P.

    J. Mater. Chem. C, 2025, 13, 14953-14961

    DOI ›

  • Selective lower-occupied through-bond interactions for efficient organic phosphorescence enabling high-resolution long-wavelength afterglow

    Kashipati, R. M.; Ueda, S.; Tsuru, R.; Hayashi, K.; Simura, R.; Sk, B.; Hirata, S.

    Adv. Mater. 2025, 2502611

    DOI ›

  • Deciphering carbon–sulfur rotational distribution in a crystalline host for enhanced red persistent organic phosphorescence

    Ueda, S.; Fujita, K.; Sk, B.; Hirata, S.

    J. Mater. Chem. C 2025, 13, 2654–2660

    DOI ›

2024

  • Symmetry-Breaking Triplet Excited State to Enhance Red Afterglow Enabling Ubiquitous Afterglow Readout

    Sk, B.; Hirata, S.

    Adv. Sci. 2024, 11, 2308897

    DOI ›

2023

  • Selective Triplet–Singlet Förster-Resonance Energy Transfer for Bright Red Afterglow Emission

    Sk, B.; Tsuru, R.; Hayashi, K.; Hirata, S.

    Adv. Funct. Mater. 2023, 33(11), 2211604

    DOI ›

  • Continuous condensed triplet accumulation for irradiance-induced anticounterfeit afterglow

    Badriyah, H. E.; Hayashi, K.; Sk, B.; Takano, R.; Ishida, T.; Hirata, S.

    Adv. Sci. 2023, 10, 2304374

    DOI ›

  • Förster resonance energy transfer involving the triplet state

    Sk, B.; Hirata, S.

    Chem. Commun. 2023, 59, 6643–6659

    DOI ›

  • Unraveling Molecular Assembly and Tracking Lipid Droplet Dynamics Using Fluorescent Phenanthroimidazole Derivatives

    Kundu, S.; Sk, B.; Saha, N.; Das, S.; Dutta, T. K.; Batra, A.; Tomar, R. S.; Patra, A.

    ACS Mater. Lett. 2023, 5(1), 27–35

    DOI ›

  • Systematic Investigation via Controlling the Energy Gap of Local and Charge-Transfer Triplet State for Enabling High-Efficiency Thermally Activated Delayed Fluorescence Emitter

    Yadav, N.; Deori, U.; Ravindran, E.; Sk, B.; Rajamalli, P.

    J. Mater. Chem. C 2023

    DOI ›

2022

  • Deep Blue Thermally Activated Delayed Fluorescence Emitter: A Balance between Charge Transfer and Color Purity

    Sk, B.; Ravindran, E.; Deori, U.; Yadav, N.; Nanda, G. P.; Rajamalli, P.

    J. Mater. Chem. C 2022, 10, 4886–4893

    DOI ›

  • Thermally activated delayed fluorescence (TADF) emitters: sensing and boosting spin-flipping by aggregation

    Mazumdar, A. K.; Nanda, G. P.; Yadav, N.; Deori, U.; Acharyya, U.; Sk, B.; Rajamalli, P.

    Beilstein J. Org. Chem. 2022, 18, 1177–1187

    DOI ›

2021

  • UV to NIR multistate electrochromism and electrofluorochromism in dibenzophenazine-arylamine derivatives

    Sk, B.; Sarkar, M.; Singh, K.; Sengupta, A.; Patra, A.

    Chem. Commun. 2021, 57, 13590–13593

    DOI ›

  • High-Performance Non-doped Green Organic Light Emitting Diode via delayed fluorescence

    Sk, B.; Thangaraji, V.; Yadav, N.; Nanda, G. P.; Das, S.; Gandeepan, P.; Zysman-Colman, E.; Rajamalli, P.

    J. Mater. Chem. C 2021, 9, 15583–15590

    DOI ›

  • Ultrathin Non-doped Thermally Activated Delayed Fluorescence Emitting Layer for Highly Efficient Organic Light-Emitting Diodes

    Nanda, G. P.; Sk, B.; Rajamanickam, S.; Deori, U.; Mahashya, R.; Zysman-Colman, E.; Rajamalli, P.

    Chem. Commun. 2021

    DOI ›

  • Red Thermally Activated Delayed Fluorescence in Dibenzopyridoquinoxaline based Nanoaggregates

    Das, S.; Kundu, S.; Sk, B.; Sarkar, M.; Patra, A.

    Org. Mater. 2021

    DOI ›

  • Pyrene-cyanostyrene-pyridine triad: Multi-stimuli responsive fluorescent emitter and mitochondrial imaging

    Hasin, J.; Giri, A.; Kundu, S.; Kumar, V.; Sk, B.; Patra, A.

    Chem. Phys. Impact 2021, 100036

    DOI ›

2020

  • N-rich Electron Acceptor: Triplet Harvesting in Multichromophoric Pyridoquinoxaline and Pyridopyrazine-Based Organic Emitters

    Sk, B.; Sharma, S.; James, A.; Kundu, S.; Patra, A.

    J. Mater. Chem. C 2020, 8, 12943

    DOI ›

  • Molecular Engineering Approaches Towards All-Organic White Light Emitting Materials

    Kundu, S.; Sk, B.; Pallavi, P.; Giri, A.; Patra, A.

    Chem. Eur. J. 2020, 26, 5557

    DOI ›

2019

  • Connecting the Dots: Knitting C-Phenylresorcin[4]arenes with Aromatic Linkers for Task-Specific Porous Organic Polymers

    Giri, A.; Hussain, M. D. W.; Sk, B.; Patra, A.

    Chem. Mater. 2019, 31, 8440

    DOI ›

  • A naked-eye colorimetric sensor for methanol and turn-on fluorescence detection of Al3+

    Kumar, V.; Kundu, S.; Sk, B.; Patra, A.

    New J. Chem. 2019, 43, 18582

    DOI ›

2018

  • T and V-shaped donor-acceptor-donor molecules involving pyridoquinoxaline: large Stokes shift, environment-sensitive tunable emission, and temperature-induced fluorochromism

    Sk, B.; Khodia, S.; Patra, A.

    Chem. Commun. 2018, 54, 1786–1789

    DOI ›

  • Dynamic and static excimer: a versatile platform for single component white-light emission and chelation-enhanced fluorescence

    Kumar, V.; Sk, B.; Kundu, S.; Patra, A.

    J. Mater. Chem. C 2018, 6, 12086

    DOI ›

2017

  • Tuning the Förster Resonance Energy Transfer through a Self-Assembly Approach for Efficient White-Light Emission in an Aqueous Medium

    Pallavi, P.; Sk, B.; Ahir, P.; Patra, A.

    Chem. Eur. J. 2017, 5, 1151

    DOI ›

  • A Pyridoindole-Based Multifunctional Bioprobe: pH-Induced Fluorescence Switching and Specific Targeting of Lipid Droplets

    Sk, B.; Thakre, P. K.; Tomar, R. S.; Patra, A.

    Chem. Asian J. 2017, 18, 2501–2509

    DOI ›

2016

  • C–C coupling over Schiff base condensation: a rational design strategy for a strongly fluorescent molecular material

    Sk, B.; Patra, A.

    CrystEngComm 2016, 18, 4290–4294

    DOI ›

Patent

  • Patra, A.; Sk, B.; Sarkar, M.; Kundu, S. Dibenzopyridoquinoxaline Based Derivatives. Indian Patent No. 558358.

Conference proceedings & invited talks

  • Annual Meeting on Photochemistry 2024 — Oral presentation: “Synchronized Twosome in Benzoyl Linked N-Fused Ring for Highly Efficient Yellow Afterglow,” Kyushu University, Fukuoka, Japan. Event link
  • ICP 2023 — Contributed oral presentation: “Symmetry-breaking triplet excited state allowing enhanced red afterglow room-temperature phosphorescence,” Sapporo Park Hotel, Hokkaido, Japan. Event link
  • Annual Meeting on Photochemistry 2022 — Oral presentation on selective and efficient triplet–singlet resonance energy transfer for bright red afterglow emission.
  • ACS Fall 2022 National Meeting & Exposition — Poster presentation on deep blue and narrowband thermally activated delayed fluorescence.
  • ACS Spring 2021 Virtual National Meeting & Exposition — Poster presentation on triplet harvesting in rigid and flexible multichromophoric organic emitters.
  • French-Swiss Photochemistry Symposium 2021 — Flash presentation on triplet harvesting in rigid and flexible multichromophoric organic emitters.
  • RSC Early Career Members Meeting 2020 — 3-minute presentation on pyridoquinoxaline and pyridopyrazine-based solid-state and long-lived emissive materials; won breakout-session prize.
  • ACS Fall 2019 National Meeting & Exposition — Oral presentation on excited-state intramolecular charge transfer in T- and V-shaped donor–acceptor molecules.