CdS quantum dots for measurement of the size-dependent optical properties of thiol capping
Source abstract
Abstract
The optical- and size-dependent properties of CdS quantum dots (QDs) were analyzed in the presence and absence of different capping agents in aqueous medium. The QDs have been characterized by UV–Vis, Photoluminescence, Fourier-transform infrared spectroscopy, X-ray diffraction, and Fluorescence lifetime measurements. QDs with the presence of thiol group in cubic phase with small grain size were observed in XRD and decrease in particle size of the same with increase in band gap is deduced through UV–Vis and XRD studies. The FT-IR spectrum confirms the interaction of thiol group with CdS. Fluorescence lifetime of capped QDs was higher compared to uncapped CdS QDs. The surface passivation of thiol group on CdS is shown in photoluminescence studies.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films · Nanocluster Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Barglik-Chory Ch, Buchold D, Schmitt M, Kiefer W, Heske C, Kumpf C, Fuchs O, Weinhardt L, Stahl A, Umbach E, Lentze M, Geurts J, Mqller G (2003) Synthesis, structure and spectroscopic characterization of water-soluble CdS nanoparticles. Chem Phys Lett 379:443–45110.1016/j.cplett.2003.08.068 ↗
2. Bawendi MG, Carroll PJ, Wilson WL, Brus (1992) Luminescence properties of CdSe quantum crystallites: resonance between interior and surface localized states. J Chem Phys 96:946–95410.1063/1.462114 ↗
3. Bullen C, Mulvaney P (2006) The effects of chemisorption on the luminescence of CdSe quantum dots. Langmuir 22:3007–301310.1021/la051898e ↗
4. Cao YC, Wang J (2004) One-pot synthesis of high-quality zinc-blende CdS nanocrystals. J Am Chem Soc 126:14336–1433710.1021/ja0459678 ↗
5. Chen YF, Rosenzweig Z (2002) Luminescent CdS quantum dots as selective ion probes. Anal Chem 74:5132–513810.1021/ac0258251 ↗
6. Colvin VL, Schlamp MC, Alivisatos AP (1994) Light-emitting diodes made from cadmium selenide nanocrystals and a semiconducting polymer. Nature 370:354–35710.1038/370354a0 ↗
7. Dahan M, Laurence T, Pinaud F, Chemla DS, Alivisatos AP, Sauer M, Weiss S (2001) Time-gated biological imaging by use of colloidal quantum dots. Opt Lett 26:825–82710.1364/OL.26.000825 ↗
8. Dannhauser T, O’Neil M, Johansson K, Whitten D, McLendon G (1986) Photophysics of quantized colloidal semiconductors. Dramatic luminescence enhancement by binding of simple amines. J Phys Chem 90:6074–607610.1021/j100281a004 ↗
9. Fisher BR, Eisler H-J, Stott NE, Bawendi MG (2004) Emission intensity dependence and single-exponential behavior in single colloidal quantum dot fluorescence lifetimes. J Phys Chem B 108:143–14810.1021/jp035756+ ↗
10. Goldman ER, Balighian ED, Mattoussi H, Kuno MK, Mauro JM, Tran PT, Anderson GP (2002) Avidin: a natural bridge for quantum dot-antibody conjugates. J Am Chem Soc 124:6378–638210.1021/ja0125570 ↗
11. Guha S, Wu BJ, Cheng H, DePuydt JM (1993) Microstructure and pseudomorphism in molecular beam epitaxially grown ZnCdS on GaAs (001). Appl Phys Lett 63:212910.1063/1.110562 ↗
12. Guinier A (1994) X-ray diffraction in crystals, imperfect crystals and amorphous bodies. Dover Publication, New York
13. Hasselbarth A, Eychmiiller A, Weller H (1993) Detection of shallow electron traps in quantum sized CdS by fluorescence quenching experiments. Chem Phys Lett 203:271–27610.1016/0009-2614(93)85400-I ↗
14. Jack LJ, Andrew WY, Guo W, Keay JC, Mishima TD, Johnson MB, Peng X (2003) Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction. J Am Chem Soc 125:12567–1257510.1021/ja0363563 ↗
15. Jiang C, Xu S, Yang D, Zhang F, Wang W (2007) Synthesis of glutathione-capped CdS quantum dots and preliminary studies on protein detection and cell fluorescence image. Luminescence 22:430–43710.1002/bio.981 ↗
16. Khomane RB, Manna A, Mandale AB, Kulkarni BD (2002) Synthesis and characterization of dodecanethiol-capped cadmium sulfide nanoparticles in a Winsor II microemulsion of diethyl ether/AOT/Water. Langmuir 18:8237–824010.1021/la011567b ↗
17. Klimov VI, McBranch DW, Leatherdale CA, Bawendi (1999) Electron and hole relaxation pathways in semiconductor quantum dots. Phys Rev B Condens Matter Mater Phys 60:13740–1374910.1103/PhysRevB.60.13740 ↗
18. Kortan AR, Hull R, Opila RL, Bawendi MG, Steigerwald ML, Carroll PJ, Brus Louis E (1990) Nucleation and growth of cadmium selenide on zinc sulfide quantum crystallite seeds, and vice versa, in inverse micelle media. J Am Chem Soc 112:1327–133210.1021/ja00160a005 ↗
19. Ladizhansky V, Hodes G, Vega S (1998) Surface properties of precipitated CdS nanoparticles studied by NMR. J Phys Chem B 102:8505–850910.1021/jp981711a ↗
20. Lakowicz JR, Gryczynski I, Gryczynski Z, Nowaczyk K, Murphy CJ (2000) Time-resolved spectral observations of cadmium-enriched cadmium sulfide nanoparticles and the effects of DNA oligomer binding. Anal Biochem 280:128–13610.1006/abio.2000.4495 ↗
21. Lifshitz E, Dag I, Litvitn ID, Hodes G (1998) Optically detected magnetic resonance study of electron/hole traps on CdSe quantum dot surfaces. J Phys Chem B 102:9245–925010.1021/jp981880v ↗
22. Moffitt M, Eisenberg A (1995) Size control of nanoparticles in semiconductor-polymer composites. 1. Control via multiplet aggregation numbers in styrene-based random ionomers. Chem Mater 7:1178–118410.1021/cm00054a017 ↗
23. Nandakumar P, Vijayan C, Murti YVGS (2002) Optical properties of CdS quantum dots in Nafion. J Appl Phys 91:150910.1063/1.1425077 ↗
24. Pinaud F, Michalet X, Bentolila LA, Tsay JM, Doose S, Li JJ, Iyer G, Weiss S (2006) Advances in fluorescence imaging with quantum dot bio-probes. Biomaterials 27:1679–168710.1016/j.biomaterials.2005.11.018 ↗
25. Rosetti R, Nakahara S, Brus LE (1983) Quantum size effects in the redox potentials, resonance Raman spectra, and electronic spectra of CdS crystallites in aqueous solution. J Chem Phys 79:1086–108810.1063/1.445834 ↗
26. Samanta B, Sharma SL, Chaudhuri AK (1994) Optical properties of Cd0.8Zn0.2Te thin films. Indian J Pure Appl Phys 32:62–67
27. Vossmeyer T, Katsikas L, Gienig M, Popovic IG, Diesner K, Chemseddine A, Eychmuller A, Weller H (1994) CdS nanoclusters: synthesis, characterization, size dependent oscillator strength, temperature shift of the excitonic transition energy, and reversible absorbance shift. J Phys Chem 98:7665–767310.1021/j100082a044 ↗
28. Warner JH, Tilley RD (2005) Synthesis and self-assembly of triangular and hexagonal CdS nanocrystals. Adv Mater 17:2997–300110.1002/adma.200501016 ↗
29. Yang J, Xue C, Yu SH, Zeng JH, Qian YT (2002) General synthesis of semiconductor chalcogenide nanorods by using the monodentate ligand n-butylamine as a shape controller. Angew Chem Int Ed 41:4697–470010.1002/anie.200290020 ↗
30. Zhong X, Liu S, Zhang Z, Li L, Wei Z, Knoll W (2004) Synthesis of high-quality CdS, ZnS, and ZnxCd1–xS nanocrystals using metal salts and elemental sulphur. J Mater Chem 14:2790–279410.1039/B407556K ↗