caa a22 4500 463225066 CHVBK 20180405153224.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0679-2 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0679-2 Luminescent stability of water-soluble PbS nanoparticles [Elektronische Daten] [Xu-Sheng Zhao, She-Yang Xu, Li-Yan Liang, Tao Li, Sam Cauchi] Thiol-capped PbS semiconductor nanoparticles (NPs) stabilized with a mixture of 1-thioglycerol/dithioglycerol (TGL/DTG) were colloidally prepared at room temperature. UV-vis spectroscopy and photoluminescence (PL) spectra showed an obvious red-shift in both the absorption shoulder and PL peak with the increase of DTG/Pb molar ratio. Room temperature photoluminescence quantum efficiency (PLQE) of freshly prepared PbS NPs (7-11%) remained higher than 5% upon aging for 3weeks when the NPs were stored in an ice-bath in the dark, and higher than 5% for at least 5weeks when additional DTG ligand was introduced into the nanoparticle solution every 2weeks. The combination of reasonable room temperature quantum efficiency and strong, stable luminescence covering the 1.3μm telecommunication window make these NPs promising materials in optical devices and telecommunications. Springer Science+Business Media, LLC, 2007 Zhao Xu-Sheng Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut Xu She-Yang Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut Liang Li-Yan Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut Li Tao Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut Cauchi Sam Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Rd, M5S 3G4, Toronto, ON, Canada aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4265-4269 0022-2461 42:12<4265 2007 42 10853 https://doi.org/10.1007/s10853-006-0679-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0679-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhao Xu-Sheng Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut NATIONALLICENCE 700 1- Xu She-Yang Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut NATIONALLICENCE 700 1- Liang Li-Yan Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut NATIONALLICENCE 700 1- Li Tao Guangzhou Institute of Chemistry, Chinese Academy of Sciences, P.O. Box 1122, 510650, Guangzhou, P.R. China aut NATIONALLICENCE 700 1- Cauchi Sam Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Rd, M5S 3G4, Toronto, ON, Canada aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4265-4269 0022-2461 42:12<4265 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer