Melem: An efficient metal-free luminescent material

H. B. Zheng, W. Chen, H. Gao, Y. Y. Wang, H. Y. Guo, S. Q. Guo, Z. L. Tang, J. Y. Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)


Developing efficient metal-free luminescent materials is a challenging topic because their quantum yields are usually quite low. Here, for the first time, we report a new metal-free blue-emitting melem with a high quantum yield of 56.9%. Rod-like structured melem was synthesized by treating a bulk melem with nitric acid and ethylene glycol. The quantum yield of the rod-like melem (56.9%) is about 1.6 times higher than that of the ordinary melem (35.2%) and is substantially higher than that of bulk g-C3N4 (4.8%), a well-known metal-free blue emission material. This promising blue phosphor, which is easy to synthesize, abundant on earth and contains no metal elements, has great potential for practical applications.

Original languageEnglish
Pages (from-to)10746-10753
Number of pages8
JournalJournal of Materials Chemistry C
Issue number41
Publication statusPublished - 2017
Externally publishedYes


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