False luminescence of molybdenum disulfide quantum dots from carbon dots. Issue 51 (7th June 2022)

• Record Type: Journal Article
• Authors: Fu, Xiaolong; Huang, Ju; Zhu, Xiajun; Rong, Jiefeng; Lin, Zhenyu; Dong, Yongqiang; Fu, Fengfu
• Is Part Of: Chemical communications. Volume 58:Issue 51(2022)
• Page Start: 7180
• Page End: 7183
• Publication Date: 2022-06-07
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc01782b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A systematical investigation has been carried out for the first time to prove that there are no luminescent molybdenum disulfide quantum dots. Abstract : For the first time, a systematical investigation has been carried out to verify luminescent molybdenum disulfide quantum dots (MoS2 QDs). We found that the well-reported blue fluorescence of the so-called "MoS2 QDs" is mainly originated from the co-present carbon based dots rather than MoS2 . Furthermore, the band gap of MoS2 is independent of the lateral size, and it is impossible to obtain luminescent MoS2 QDs by reducing the lateral size.