Synthesis of ultra – stable copper nanoclusters and their potential application as a reversible thermometer. Issue 41 (9th October 2017)

• Record Type: Journal Article
• Authors: Shi, Yu-e; Luo, Shaojuan; Ji, Xiaojing; Liu, Fuwei; Chen, Xian; Huang, Yang; Dong, Lei; Wang, Lei
• Is Part Of: Dalton transactions. Volume 46:Issue 41(2017)
• Page Start: 14251
• Page End: 14255
• Publication Date: 2017-10-09
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt02193c
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : We report a strategy for the synthesis of luminescent copper nanoclusters that demonstrate potential application as a thermometer. Abstract : A new strategy for the synthesis of luminescent copper nanoclusters (Cu NCs), by virtue of the reduction of Cu 2+ using ascorbic acid and the protection of polyvinylpyrrolidone at 75 °C, was reported. Blue emitting Cu NCs with photoluminescence (PL) quantum yield of 12% and high stability up to at least 1 month were obtained. Moreover, the PL of Cu NCs showed a reversible response to temperature, and a linear relationship between PL intensity and temperature even after 10 cycles of repeated heating and cooling process was obtained, indicating great potential application in thermal sensors.