PHOTOLUMINESCENCE OBSERVATIONS OF DONOR-ACCEPTOR EMISSION IN MILLED Cd0.3Zn0.7Se NANOCRYSTALS

Authors

Keywords:

: Mechanical alloying, Photoluminescence spectra (PL), Donor-acceptor pairs (DAP), defects

Abstract

Defects and impurities that arise during material synthesis are detrimental to device performance. Hence, an effective characterization tool is fundamental to effectively quantify and understand the origin of such defects. In this paper, we examine photoluminescence spectra (PL) from (650-900) nm of mechanically alloyed Cd0.3Zn0.7Se nanocrystals and observe three prominent emission peaks (1.4, 1.8, and 1.54) eV. The peaks were pinned at a fixed position despite a decrease in crystallites size which ought to increase the energy bandgap. The intensity of the peaks increases with milling time due to longer milling time which gives rise to a higher density of intrinsic defects. This was attributed to continuous deformations from the milling process. The formation energies of acceptor and donor defects remain constant to the conduction and valance band edge

Dimensions

Al-Bassam, a. a. I., & Elani, U. a. (2013). Band Gap and Deep Level of ZnxCd1-xSe Mixed Crystal Cells. Energy Procedia, 32, 216–221. https://doi.org/10.1016/j.egypro.2013.05.028

Allen, J. W. (1995). Spectroscopy of lattice defects in tetrahedral II-VI compounds [Article]. Semiconductor Science and Technology, 10(8), 1049.

Bhattacharyya, S., Estrin, Y., Moshe, O., Rich, D. H., Solovyov, L. A., & Gedanken, A. (2009). Highly Luminescent Zn x Cd 1− x Se/C Core/Shell Nanocrystals: Large Scale Synthesis, Structural and Cathodoluminescence Studies. ACS Nano, 3(7), 1864–1876. https://doi.org/10.1021/nn9005076

Burger, A., & Roth, M. (1984). Temperature gradient solution zoning growth and characterization of ZnxCd1-xSe single crystals. Journal of Crystal Growth, 70, 386–392. https://doi.org/10.1016/0022-0248(84)90291-4

Dunstan, D. J., Nicholls, J. E., Cavenett, B. C., Davies, J. J., & Reddy, K. V. (1977). Optically detected magnetic resonance of the V- centre in ZnSe [JOUR]. Solid State Communications, 24(9), 677–680. https://doi.org/http://dx.doi.org/10.1016/0038-1098(77)90389-1

Giri, P. K., Bhattacharyya, S., Singh, D. K., Kesavamoorthy, R., Panigrahi, B. K., & Nair, K. G. M. (2007). Correlation between microstructure and optical properties of ZnO nanoparticles synthesized by ball milling. Journal of Applied Physics, 102(9), 093515. https://doi.org/10.1063/1.2804012

Jager-Waldau, R., Stucheli, N., Braun, M., Lux Steiner, M., Bucher, E., Tenne, R., Flaisher, H., Kerfin, W., Braun, R., & Koschel, W. (1988). Thin-film CdSe: Photoluminescence and electronic measurements. Journal of Applied Physics, 64(1988), 2601–2606. https://doi.org/10.1063/1.341649

Lee, K. M., Le Si Dang, & Watkins, G. D. (1980). OPTICALLY DETECTED MAGNETIC RESONANCE OF THE ZINC VACANCY IN ZnSe. In Solid State Communications (Vol. 35, pp. 527–530). https://doi.org/10.1016/0038-1098(80)90889-3

Makhni, V. P., & Tkachenko, I. V. (2003). Mechanism for forming the red emission band of ZnSe scintillation crystals [Article]. J. Opt. Technol., 70(9), 54–57. https://doi.org/10.1364/JOT.70.000665

Muh’d, I. B., Talib, Z. A., Zainal, Z., Chyi, J. L. Y., & Mofdal, M. E. E. (2015). Mechanochemical solid state synthesis and optical properties of Cd0.5Zn0.5Se nanocrystals. Journal of Materials Science, 50(1), 457–462. https://doi.org/10.1007/s10853-014-8605-5

Norris, C. B. (1982). Cathodoluminescence studies of postrange defect introduction from ion implantation in CdSe. Journal of Applied Physics, 53(1982), 5177–5181. https://doi.org/10.1063/1.331395

Oba, F., Nishitani, S. R., Isotani, S., Adachi, H., & Tanaka, I. (2001). Energetics of native defects in ZnO. Journal of Applied Physics, 90(2), 824. https://doi.org/10.1063/1.1380994

Pal, U., Muñoz-Avila, S., Prado-González, L., Silva-González, R., & Gracia-Jiménez, J. . (2001). Effect of laser annealing on the distribution of defect levels in CdSe films. Thin Solid Films, 381(1), 155–159. https://doi.org/10.1016/S0040-6090(00)01352-3

Philipose, U., Yang, S., Xu, T., & Ruda, H. E. (2007). Origin of the red luminescence band in photoluminescence spectra of ZnSe nanowires [Article]. Applied Physics Letters, 90(6). https://doi.org/http://dx.doi.org/10.1063/1.2457190

Radoi, R., de Andrs, M., Fernndez, P., & Piqueras, J. (2004). Luminescence properties of mechanically milled ZnSe. Physica Status Solidi (A), 201(14), 3183–3187. https://doi.org/10.1002/pssa.200306879

Radoi, R., Fernández, P., Piqueras, J., Wiggins, M. S., & Solis, J. (2003). Luminescence properties of mechanically milled and laser irradiated ZnO [Article]. Nanotechnology, 14(7), 794.

Rong, F., & Watkins, G. D. (1986). Observation by Optically Detected Magnetic Resonance of Frenkel Pairs in Irradiated ZnSe [Article]. Physical Review Letters, 56(21), 2310–2313. https://doi.org/10.1103/PhysRevLett.56.2310

Semenova, G. N., Venger, Y. F., Valakh, M. Y., Sadofyev, Y. G., Korsunska, N. O., Strelchuk, V. V, Borkovska, L. V, Papusha, V. P., & Vuychik, M. V. (2002). Optical investigations of the influence of point defects on quantum dots in CdSe/ZnSe heterostructures [Article]. Journal of Physics: Condensed Matter, 14(48), 13375–13380. https://doi.org/10.1088/0953-8984/14/48/391

Winter, J. O., Gomez, N., Gatzert, S., Schmidt, C. E., & Korgel, B. A. (2005). Variation of cadmium sulfide nanoparticle size and photoluminescence intensity with altered aqueous synthesis conditions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 254(1–3), 147–157. https://doi.org/10.1016/j.colsurfa.2004.11.024

Xu, G. Q., Liu, B., Xu, S. J., Chew, C. H., Chua, S. J., & Gana, L. M. (2000). Luminescence studies of CdS spherical particles via hydrothermal synthesis. Journal of Physics and Chemistry of Solids, 61(6), 829–836. https://doi.org/10.1016/S0022-3697(99)00403-5

Yua, I., Isobe, T., Senna, M., & Takahashi, S. (1996). Optical properties and characteristics of ZnS nano- particles with homogeneous Mn distribution. 38(4), 177–181. https://doi.org/http://dx.doi.org/10.1016/0921-5107(95)01445-4

Zhang, X. B., & Hark, S. K. (2000). Influence of gas flow stoichiometry on the luminescence of organometallic-vapor-phase-grown Zn[sub x]Cd[sub 1−x]Se epilayers. Applied Physics Letters, 76(2000), 1674. https://doi.org/10.1063/1.126132

Zhang, X. B., Won, H. K., & Hark, S. K. (1998). Depth-resolved cathodoluminescence study of Zn-x Cd1-xSe epilayer grown on (001) InP by metal organic chemical vapor phase deposition. Applied Physics Letters, 73(001), 3238–3240. https://doi.org/Doi 10.1063/1.122730

Published

12-09-2020

How to Cite

PHOTOLUMINESCENCE OBSERVATIONS OF DONOR-ACCEPTOR EMISSION IN MILLED Cd0.3Zn0.7Se NANOCRYSTALS. (2020). FUDMA JOURNAL OF SCIENCES, 4(3), 142-147. https://doi.org/10.33003/fjs-2020-0403-201

Issue

Vol. 4 No. 3 (2020): FUDMA Journal of Sciences - Vol. 4 No. 3

Section

Research Articles
Copyright & Licensing

FUDMA Journal of Sciences

How to Cite

PHOTOLUMINESCENCE OBSERVATIONS OF DONOR-ACCEPTOR EMISSION IN MILLED Cd0.3Zn0.7Se NANOCRYSTALS. (2020). FUDMA JOURNAL OF SCIENCES, 4(3), 142-147. https://doi.org/10.33003/fjs-2020-0403-201

Most read articles by the same author(s)