Swift Heavy Ion Irradiation Effects on Structural, Optical and Electrical Properties of Potassium Pentaborate (KB5) Single Crystals

  • S. Stella Mary
  • S. Shahil KirupavathyEmail author
Regular Paper


Swift heavy ion irradiation on nonlinear optical active potassium pentaborate (KB5) single crystal altered the structural, optical and electrical properties of the crystal. Point defects created during irradiation is evidenced from the high resolution X-ray diffraction analysis. From the photoluminescence spectrum it is understood that the weakening of B–O bond led to red shift in the KB5 crystal. The frequency dependence of dielectric constant and dielectric loss is been explained on the basis of polarization mechanism. Also it is observed that the polarization decreases due to trapping of charge carriers at the defect regions. The increase in conductivity with frequency is due to the reduction in the space charge polarization at higher frequencies.


Irradiation effect Swift heavy ion Crystal growth Photoluminescence Dielectric properties 



  1. 1.
    D. Kanjilal, Swift heavy ion-induced modification and track formation in materials. Curr. Sci. 80, 1560–1566 (2001)Google Scholar
  2. 2.
    C. Chen, L. Pang, Q. Lu, L. Wang, Y. Tan, Z. Wang, F. Cheng, Refractive index engineering through swift heavy ion irradiation of LiNbO3 crystal towards improved light guidance. Sci. Rep. 7, 10805–10812 (2017)CrossRefGoogle Scholar
  3. 3.
    M. Izerroukena, A. Khereddineb, A. Saric, A. Meftahd, Mechanical properties of swift heavy ion irradiated Y3Al5O12 single crystal. Nucl. Instrum. Methods Phys. Res. B (2018). Google Scholar
  4. 4.
    P. Malinský, M. Cutroneo, A. Macková, V. Hnatowicz, M. Florianová, M. Boháčová, D. Bouša, Z. Sofer, Graphene oxide layers modified by irradiation with 1.2 MeV He+ ions. Surf. Coat. Technol. 342, 220–225 (2018)CrossRefGoogle Scholar
  5. 5.
    J.P. Singh, R. Singh, S. Ghosh, A. Tripathi, D. Kabiraj, S. Gupta, T. Som, R. Kumar, S.K. Arora, K. Asokan, D.K. Avasthi, D. Kanjilal, N.C. Mishra, G.K. Mehta, Swift heavy ion-based materials science research at NSC. Nucl. Instrum. Methods Phys. Res. B 156, 206–211 (1999)CrossRefGoogle Scholar
  6. 6.
    D. Leuser, A. Dunlop, Damage creation via electronic excitations in metallic targets part II: a theoretical model. Radiat. Eff. Defects Solids 126, 163–172 (1993)CrossRefGoogle Scholar
  7. 7.
    G. Szenes, General features of latent track formation in magnetic insulators irradiated with swift heavy ions. Phys Rev B 51, 8026 (1995)CrossRefGoogle Scholar
  8. 8.
    E. Hartmann, Á. Péter, K. Lengyel, L. Kovács, Effect of melt composition on the electrical conductivity and IR absorption of CsLiB6O10 crystals. Cryst. Res. Technol. 38, 331 (2003)CrossRefGoogle Scholar
  9. 9.
    V. Joseph, S. Gunasekaran, V. Santhanam, Photoconductivity and dielectric studies of potassium pentaborate crystal (KB5). Bull. Mater. Sci. 26, 383–386 (2003)CrossRefGoogle Scholar
  10. 10.
    K. Thamizharasan, S.X.J. Raja, F.P. Xavier, P. Sagayaraj, Growth, thermal and microhardness studies of single crystals of potassium penta borate (KB5). J. Cryst. Growth 218, 323–326 (2000)CrossRefGoogle Scholar
  11. 11.
    K. Lal, G. Bhagavannarayana, G.S. Virdi, Study of point defect clusters produced by BF2 + implantation in silicon single crystals. J. Appl. Phys. 69, 8092–8095 (1991)CrossRefGoogle Scholar
  12. 12.
    G. Bhagavannarayana, R.V. Ananthamurthy, G.C. Budakoti, B. Kumar, K.S. Bartwal, A study of the effect of annealing on Fe-doped LiNbO3 by HRXRD, XRT and FT–IR. J. Appl. Cryst. 38, 768–771 (2005)CrossRefGoogle Scholar
  13. 13.
    A.V. Egorysheva, V.V. Volkov, V.I. Burkov, T.D. Dudkina, YuF Kargin, Growth and characterization of bismuth borate crystals. Opt. Mater. 13, 361–365 (1999)CrossRefGoogle Scholar
  14. 14.
    E. Jerusha, S.S. Kirupavathy, S. Shahilini, Influence of l-lysine as dopant in ammonium tetroxalate dihydrate—spectral, optical, thermal, mechanical and dielectric properties. Indian J. Pure Appl. Phys. 56, 444–452 (2018)Google Scholar
  15. 15.
    K.I. Bhat, P.M. Rao, A.P.G. Bhat, D.K. Avasthi, Irradiation effects on the optical properties of a new NLO mixed borate. Crystal. Surf. Coat. Technol. 158 &159, 725 (2002)CrossRefGoogle Scholar
  16. 16.
    A. Dogra, M. Singh, V.V.S. Kumar, N. Kumar, R. Kumar, Irradiation effect on dielectric properties of NiMn 0.05 Tix(Zn,Mg)xFe).95.2x O4 ferrite thin film. Nucl. Instrum. Methods Phys. Res. B 212, 184–189 (2003)CrossRefGoogle Scholar
  17. 17.
    T. Kanagasekaran, P. Mythili, G. Bhagavannarayana, D. Kanjilal, R. Gopalakrishnan, Investigations of structural, dielectric and optical properties on silicon ion irradiated glycine monophosphate single crystals. Nucl. Instrum. Methods Phys. Res. B 267, 2495–2502 (2009)CrossRefGoogle Scholar
  18. 18.
    P. Srinivasan, T. Kanagasekaran, P.K. Kulriya, D. Kanjilal, R. Gopalakrishnan, P. Ramasamy, Cognitions on the effects of swift heavy ion irradiation on the dielectric and optical behaviour in L-asparaginium picrate. Nucl. Instrum. Methods Phys. Res. B 256, 698–704 (2007)CrossRefGoogle Scholar
  19. 19.
    K.V. Rao, Changes in the dielectric properties of barium titanate single crystals on X-ray irradiation. Ferroelectrics 17, 389–391 (1977)CrossRefGoogle Scholar
  20. 20.
    T. Kanagasekaran, P. Mythili, P. Srinivasan, N. Vijayan, D. Kanjilal, R. Gopalakrishnan, P. Ramasamy, On the observation of physical, chemical, optical and thermal changes induced by 50 MeV silicon ion in benzimidazole single crystals. Mater. Res. Bull. 43, 852–862 (2007)CrossRefGoogle Scholar
  21. 21.
    C.V. Kannan, S. Ganesamoorthy, D. Rajesh, R. Jayavel, H. Kimura, Anisotropic properties of self-flux grown LiB3O5 single crystals. Solid State Commun. 136, 215–219 (2005)CrossRefGoogle Scholar

Copyright information

© The Korean Institute of Electrical and Electronic Material Engineers 2019

Authors and Affiliations

  1. 1.Department of PhysicsSt. Peter’s UniversityAvadi, ChennaiIndia
  2. 2.Department of PhysicsVelammal Engineering CollegeChennaiIndia

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