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Journal of Nanoparticle Research

Erschienen in:

01.10.2012 | Brief Communication

Growth of ultrasmall nanoparticles based on thermodynamic size focusing

verfasst von: Hsueh-Shih Chen, Ramachandran Vasant Kumar

Erschienen in: Journal of Nanoparticle Research | Ausgabe 10/2012

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Abstract

This study presents a new concept to synthesize quantum dots or nanoparticles with smaller size (<2 nm) based on the thermodynamic size focusing. Conventionally, control over crystal size is achieved by interrupting crystal growth and/or limiting the reaction rate at lower temperature. Alternatively, we synthesized ultrasmall nanoparticles via a simple thermal quenching-isothermal annealing process called the thermal size focusing. This approach, avoiding the difficulty of controlling the rapid nanoparticles' growth in the interruption method or long synthesis time in the low-temperature process, provides an efficient way for obtaining ultrasmall nanoparticles.

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Nächster Artikel Sonochemically synthesized rare earth double-doped zirconia nanoparticles: probable candidate for white light emission

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Capek RK, Lambert K, Dorfs D, Smet PF, Poelman D, Eychmuller A, Hens Z (2009) Synthesis of extremely small CdSe and bright blue luminescent CdSe/ZnS nanoparticles by a pre-focused hot-injection approach. Chem Mater 21(8):1743–1749CrossRef

Chen HS, Kumar RV (2009a) Discontinuous growth of colloidal CdSe nanocrystals in the magic structure. J Phys Chem C 113(1):31–36CrossRef

Chen HS, Kumar RV (2009b) Direct synthesis of quantum dots with controllable multimodal size distribution. J Phys Chem C 113(128):12236–12242CrossRef

Chen HS, Kumar RV (2009c) From nearly monodispersed toward truly monosized nanocrystals: chemical potential well during growth of nanocrystals. Cryst Growth Des 9(10):4235–4238CrossRef

Chen HS, Lo B, Hwang JY, Chang GY, Chen CM, Tasi SJ, Wang SJ (2004) Colloidal ZnSe, ZnSe/ZnS, and ZnSe/ZnSeS quantum dots synthesized from ZnO. J Phys Chem B 108(44):17119–17123CrossRef

Chen HS, Hong HY, Kumar RV (2011) White light emission from semiconductor nanocrystals by in situ colour tuning in an alternating thermodynamic–kinetic fashion. J Mater Chem 21(16):5928–5932CrossRef

Hines MA, Guyot-Sionnest P (1996) Synthesis and characterization of strongly luminescing ZnS-capped CdSe nanocrystals. J Phys Chem 100(2):468–471CrossRef

Jun S, Jang E (2005) Interfused semiconductor nanocrystals: brilliant blue photoluminescence and electroluminescence. Chem Commun 36:4616–4618CrossRef

Kim SW, Zimmer JP, Ohnishi S, Tracy JB, Frangioni JV, Bawendi MG (2005) Engineering InAs_xP_1−x/InP/ZnSe III–V alloyed core/shell quantum dots for the near-infrared. J Am Chem Soc 127(30):10526–10532CrossRef

Kim KE, Kim TG, Sung YM (2012) Fluorescent cholesterol sensing using enzyme-modified CdSe/ZnS quantum dots. J Nanopart Res 14:1179CrossRef

Kucur E, Ziegler J, Nann T (2008) Synthesis and spectroscopic characterisation of fluorescent blue-emitting ultra-stable CdSe-clusters. Small 4(7):883–887CrossRef

Kudera S, Zanella M, Giannini C, Rizzo A, Li Y, Gigli G, Cingolani R, Ciccarella G, Spahl W, Parak WJ, Manna L (2007) Sequential growth of magic-size CdSe nanocrystals. Adv Mater 19(4):548–552CrossRef

Murray CB, Norris DJ, Bawendi MG (1993) Synthesis and characterization of nearly monodisperse CdE (E = sulfur, selenium, tellurium) semiconductor nanocrystallites. J Am Chem Soc 115(19):8706–8715CrossRef

Nguyen KA, Day PN, Pachter R (2010) Understanding structural and optical properties of nanoscale CdSe magic-size quantum dots: insight from computational prediction. J Phys Chem C 114(39):16197–16209CrossRef

Peng ZA, Peng X (2001) Formation of high-quality CdTe, CdSe, and CdS nanocrystals using CdO as precursor. J Am Chem Soc 123(1):183–184CrossRef

Peng X, Wickham J, Alivisatos AP (1998) Kinetics of II–VI and III–V colloidal semiconductor nanocrystal growth: “Focusing” of size distributions. J Am Chem Soc 120(21):5343–5344CrossRef

Peng X, Manna L, Yang W, Wickham J, Scher E, Kadavanich A, Alivisatos AP (2000) Shape control of CdSe nanocrystals. Nature 404(6773):59–61CrossRef

Puntes VF, Krishnan KM, Alivisatos AP (2001) Colloidal nanocrystal shape and size control: the case of cobalt. Science 291(5511):2115–2117CrossRef

Qu L, Peng ZA, Peng X (2001) Alternative routes toward high quality CdSe nanocrystals. Nano Lett 1(6):333–337CrossRef

Riehle FS, Bienert R, Thomann R, Urban GA, Kruger M (2009) Blue luminescence and superstructures from magic size clusters of CdSe. Nano Lett 9(2):514–518CrossRef

Soloviev VN, Eichhofer A, Fenske D, Banin U (2000) Molecular limit of a bulk semiconductor: size dependence of the “band gap” in CdSe cluster molecules. J Am Chem Soc 122(11):2673–2674CrossRef

Yu Q, Liu CY (2009) Study of magic-size-cluster mediated formation of CdS nanocrystals: properties of the magic-size clusters and mechanism implication. J Phys Chem C 113(29):12766–12771CrossRef

Yu WW, Qu L, Guo W, Peng X (2003) Experimental determination of the extinction coefficient of CdTe, CdSe, and CdS nanocrystals. Chem Mater 15(14):2854–2860CrossRef

Yu M, Fernando GW, Li R, Papadimitrakopoulos F, Shi N, Ramprasad R (2007) Discrete size series of CdSe quantum dots: a combined computational and experimental investigation. J Comput Aided Mater Des 14(1):167–174CrossRef

Zhang Y, Dai Q, Li X, Zou B, Wang Y, Yu WW (2011) Beneficial effect of tributylphosphine to the photoluminescence of PbSe and PbSe/CdSe nanocrystals. J Nanopart Res 13:3721–3729CrossRef

Titel: Growth of ultrasmall nanoparticles based on thermodynamic size focusing
verfasst von: Hsueh-Shih Chen
Ramachandran Vasant Kumar
Publikationsdatum: 01.10.2012
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 10/2012
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-012-1207-8

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