| Title: |
Renewably sourced amino-acid- and lignin-based solid-state emitters |
| Authors: |
Tse, H-Y; Erythropel, HC; Backhaus, A; Lee, DS; Cheng, SC; Yeung, CS; Phillips, DL; Zimmerman, JB; Anastas, PT |
| Publisher Information: |
Elsevier |
| Publication Year: |
2025 |
| Collection: |
Nottingham Trent University's Institutional Repository (IRep) |
| Description: |
The development of sustainable solid-state emitters remains challenging because of the reliance on toxic metals, complex synthetic procedures, and non-renewable starting materials. This study demonstrates the development of solid-state emitters based on lignin, a renewable byproduct of the paper industry, and the amino acid histidine or its methyl ester through simple anti-solvent crystallization under mild conditions. The prepared materials exhibited excited-state proton transfer (ESPT)-induced fluorescence and achieved optimal performance at 0.43–0.62 mol % phenolic hydroxyl content. Notably, the lignin/histidine methyl ester emitter displayed room-temperature afterglow phosphorescence with lifetimes of up to 359 ms without requiring heavy atoms for intersystem crossing. Using powder X-ray diffraction (pXRD) and ultraviolet-visible (UV-vis) data, we postulate that the histidine methyl ester host matrix provides sufficient framework rigidity and H-aggregation to enable efficient intersystem crossing and triplet-excited-state stabilization. This work offers a sustainable strategy for tunable and renewably sourced solid-state photoluminescent materials for a variety of applications. |
| Document Type: |
article in journal/newspaper |
| File Description: |
text |
| Language: |
English |
| ISSN: |
2451-9308 |
| Relation: |
https://irep.ntu.ac.uk/id/eprint/54679/1/2516820_Lee.pdf; TSE, H.-Y., ERYTHROPEL, H.C., BACKHAUS, A., LEE, D.S., CHENG, S.C., YEUNG, C.S., PHILLIPS, D.L., ZIMMERMAN, J.B. and ANASTAS, P.T., 2025. Renewably sourced amino-acid- and lignin-based solid-state emitters. Chem: 102781. ISSN 2451-9308 |
| DOI: |
10.1016/j.chempr.2025.102781 |
| Availability: |
https://irep.ntu.ac.uk/id/eprint/54679/; https://irep.ntu.ac.uk/id/eprint/54679/1/2516820_Lee.pdf; https://doi.org/10.1016/j.chempr.2025.102781 |
| Accession Number: |
edsbas.AC250C35 |
| Database: |
BASE |