Determination of Optimum Zn content in Cd1-xZnxS Nanoparticles
Abstract
CdZnS quantum dots (QDs) QDs containing concentrations of 0.25, 0.5, 1, 3 and 5% Zn were synthesized at room temperature by chemical precipitation method and then incident photons to current efficiency (IPCE) measurements were performed to determine optimum Zn concentration in CdZnS QDs. Moreover, Zn2SnO4, a ternary compound semiconductor, was used instead of TiO2 as counter electrode for the first time. As a last part of the study, the structural and optical properties of CdZnS QDs containing optimum Zn content were investigated, respectively. Consequently, it appears that CdZnS QDs have a higher efficiency than CdS and that Zn doping plays an important role in this increase.
Keywords
Full Text:
PDFReferences
Vaneski A, Schneider J, Susha AS, Rogach AL. Colloidal hybrid heterostructures based on II-VI semiconductor nanocrystals for photocatalytic hydrogen generation. Journal of Photochemistry and Photobiology C: Photochemistry Reviews, 2014 , 19(3) : 52–61.
Suresh S. Studies on the dielectric properties of CdS nanoparticles. Applied Nanoscience, 2014 , 4(3) :325–329.
Torimoto T, Ogawa S, Adachi T, Kameyama T, Okazaki KI, Shibayama T, Kunda A, Kuwabata S. Remarkable photoluminescence enhancement of ZnS-AgInS2 solid solution nanoparticles by post-synthesis treatment. Chemical Communications, 2010 , 46(12) :2082–2084.
Silva MB, Moreno OP, Morales RL, Munaz JLF, Angel OZ. CdS: In thin films grown by chemical bath. Journal of Non-Oxide Glasses, 2017, 9.
Yilmaz S, Polat I, Olgar MA, Tomakin M, Toreli SB, Bacaksiz E. Physical properties of CdS: Ga thin films synthesized by spray pyrolysis technique. Journal of Materials Science: Materials in Electronics, 2016, 28(4):1–9.
Baykul MC, Orhan N. Band alignment of Cd1-xZnxS produced by spray pyrolysis method. Thin Solid Films. 518, 1925.
Kumar P, Misra A, Kumar D, Dhama N, Sharma TP, Dixit PN. Structural and optical properties of vacuum evaporated Cd1-xZnxS thin films. Optical Materials, 1998, 11(1) :29–34.
Burton LC. Composition measurements related to the Cu2S/ZnxCd1-xS heterojunctions. Applied Physics Letters, 1979, 35(10): 780–782.
Clayton AJ, Baker MA, Babar S, Grilli R, Gibson PN, Kartopu G, Lamb DA, Barrioz V, Irvine SJC. Effects of Cd1-xZnxS alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD. Materials Chemistry and Physics, 2017, 192: 244–252.
Muruganandam G, Anbalagan G Murugadoss. 2014. Synthesis and structural, optical and therma properties of CdS: Zn2+nanoparticles. Applied Nanoscience, 2014, 4(8):1013–1019.
Levchuk, Wurth C, Krause F, Osvet A, Batentschuk M, Genger UR, Kolbelk C, Herre P, Steinruck HP, Peukert W, Brabec J. Industrally scalable and cost-effective Mn2+doped ZnxCd1-xS/ ZnS nanocrystals with 70% photoluminescence quantum yield, as efficient down-shifting materials in photovoltaics. Energy&Environmental Science, 2016, 9(3):1083–1094.
Bedir M, Kayali R, Oztas M. Effect of the Zn concentration on the characteristic parameters of ZnxCd1-xS thin films developed by spraying pyrolysis method under nitrogen atmosphere. Turkish Journal of Physics, 2002, 26(2).
Horoz S, Baytar O, Sahin O, Kilicvuran H. Photocatalytic degradation of methylene blue with Co alloyed CdZnS nanoparticles. Journal of Materials Science: Materials in Electronics (In Press), 2017: 1–7.
Kumar TP, Saravanakumar S, Sankaranarayanan K. Effect of annealing on the surface and band gap alignment of CdZnS. Applied Surface Science, 2011, 257(6):1923–1927.
Hossain MS, Islam MA, Huda Q, Aliyu MM, Razykov T, Alam MM, Alothman ZA, Sopian K, Amin N. Growth optimization of ZnxCd1-xS thin films by radio-frequency magnetron co-sputtering for solar cell applications. Thin Solid Films, 2013, 548(12): 202–209.
Frag AAM, Rafea MA, Roushdy N, El-Shazly Q, El-Wahidy EF. Influence of Cd- content on structural and optical dispersion characteristics of nanocrystalline Zn1-xCdxS (0 ≤ x ≤ 0.9) films. Journal of Alloys and Compounds, 2015, 621: 434–440.
Baghchesara MA, Yousefi R, Cheraghizade M, Shein FJ, Saaedi A. Photocurrent application of Zn-doped CdS nanostructures grown by thermal evaporation method. Ceramics International, 2016, 42(1):1891–1896.
Anbarasi M, Nagarethinam VS, Balu AR. Studies on the physical properties of undoped and Zn-doped CdS thin films preparedby spray pyrolysis technique using perfume atomizer. Indian Journal of Science, 2014, 32(4):652–660.
DOI: https://doi.org/10.18686/esta.v5i1.63
Refbacks
- There are currently no refbacks.
Copyright (c) 2018 Sabit HOROZ, Arzu EKINCI, Omer SAHIN
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
