Long-Lived Afterglow from Elemental Sulfur Powder: Synergistic Effects of Impurity and Structure.

Jiaqi Guo, Zhangdi Lu, Chenmin Li, Yuming Miao, Bingbing Zhang, Jacky W Y Lam, Yu-E Shi, Zhenguang Wang, Ben Zhong Tang

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Article in ACS omega, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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9 authors.

Jiaqi GuoKey Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China.

Zhangdi LuDepartment of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China.

Chenmin LiKey Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China.

Yuming MiaoKey Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China.

Bingbing ZhangKey Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China.

Jacky W Y LamDepartment of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China.

Yu-E ShiKey Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China.

Zhenguang WangKey Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China.ORCID https://orcid.org/0000-0003-2001-5165

Ben Zhong TangDepartment of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China.ORCID https://orcid.org/0000-0002-0293-964X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Elemental sulfur is not traditionally considered as an afterglow material, even though it can be endowed with fluorescence properties through processing it into nanodots. Herein, we discovered that elemental sulfur powder could emit room temperature phosphorescence (RTP) with a lifetime of 3.7 ms. A long-lived (>12 s) afterglow emission at 77 K could also be observed by the naked eye. Detailed investigations suggested that such a special phenomenon was attributed to impurity-related traps coupled with conduction and valence bands. After the sulfur is processed into nanodots, the rigid environment formed by the cross-linking of the surface ligands could stabilize the excited charges from quenching. This results in the promotion of RTP intensity and lifetime to achieve an emission lifetime of 200 ms. These results confirm the unique RTP of elemental sulfur powder, and also suggest the potential of sulfur-based materials as versatile components for the development of RTP materials.

Identifiers

PMID36061658

DOI10.1021/acsomega.2c04307

PMCPMC9435047

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