Investigation of CsPbBr3: DC Electrical Properties, Complex Impedance Study, and Optoelectronic Behavior
Keywords:
CsPbBr₃, perovskite, dielectric properties, impedance spectroscopy, optoelectronic properties, photo detector
Abstract
CsPbBr₃ perovskite was investigated for its structural, optical, electrical, dielectric, and optoelectronic properties. X-ray diffraction confirmed nthe orthorhombic crystal structure, while FESEM analysis revealed well-defined cubic microstructures. ED-XRF measurements verified the presence of Cs, Pb, and Br elements. Optical studies showed a direct band gap of 2.19 eV and a strong photoluminescence emission at 554 nm. Dielectric properties exhibited frequency- and temperature-dependent behavior, with AC conductivity following Jonscher’s power law and DC conductivity obeying Arrhenius behavior with an activation energy of 0.517 eV. Impedance analysis confirmed semiconducting characteristics through negative temperature coefficient resistance (NTCR) behavior. Under 100 mW cm⁻² illumination, the material demonstrated a tenfold increase in photocurrent, with responsivity and detectivity reaching 1.73 mA W⁻¹ and 3.27 × 10⁴ Jones, respectively. Furthermore, reduced grain and grain-boundary resistance under illumination indicated enhanced charge-carrier transport. These results highlight the potential of CsPbBr₃ as a promising material for photodetectors and other optoelectronic applications.
References
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2.Park B, Philippe B, Zhang X, Rensmo H, Boschloo G, Johansson EMJ. Bismuth Based Hybrid Perovskites A3Bi2I9 ( A: Methylammonium or Cesium ) for Solar Cell Application. Adv mater,2015, 27, 6806-6813. doi:10.1002/adma.201501978
3.Dimesso L, Das C, Stöhr M, Jaegermann W. Investigation of cesium tin/leadiodide (CsSn1−xPbxI3) systems. Mater Res Bull. 2017, 85, 80-89. doi:10.1016/j.materresbull.2016.08.052
4.Mcclure ET, BallMR, WindlW,etal. Lead-freehalideperovskitesemiconductors Cs 2 AgBiX 6 ( X = Br , Cl ) — New visible light absorbing , lead-free halide perovskite semiconductors. Chem Mater, 2016, 28(5), 1348-1354. doi:10.1021/acs.chemmater.5b04231
5.Li Z, YangM,ParkJS,WeiSH,BerryJJ,ZhuK.StabilizingPerovskiteStructures by Tuning Tolerance Factor: Formation of Formamidinium and Cesium Lead Iodide Solid-State Alloys. Chem Mater. 2016, 28(1), 284-292. doi:10.1021/acs.chemmater.5b04107
6.Ortega N, Kumar A, Bhattacharya P, Majumder SB, Katiyar RS. Impedance spectroscopyofmultiferroicPbZrxTi1−xO3∕CoFe2O4layeredthinfilms.Phys RevB. 2008, 77(1), 014111. doi:10.1103/PhysRevB.77.014111
7.James AR, Priya S, Uchino K, Srinivas K. Dielectric spectroscopy of Pb(Mg1/3Nb2/3)O3-PbTiO3single crystals. J Appl Phys. 2001, 90(7), 3504-3508. doi:10.1063/1.1401802
8.Feldman Y, PuzenkoA, Ryabov Y. Dielectric relaxation phenomena in complex materials. Adv Chem Phys. 2006, 133, 125. doi:10.1002/0471790265.ch1
9.Dyre JC. Some remarks on ac conduction in disordered solids. J Non Cryst Solids. 1991, 135(2-3), 219-226. doi:10.1016/0022-3093(91)90423-4
10.Nowick A, Vaysleyb A, Kuskovsky I. Universal dielectric response of variously doped ionically conducting ceramics. Phys Rev B - Condens Matter Mater Phys. 1998, 58(13), 8398-8406. doi:10.1103/PhysRevB.58.8398
11.EL-MALLAH HM. AC Electrical Conductivity and Dielectric Properties of Perovskite ( Pb , Ca ) TiO3 Ceramic. Acta Phys Pol a. 2012, 122(1), 174-179.
12.Anantharaman MR, Malini KA, Sindhu S, et al. Tailoring magnetic and dielectric properties of rubber ferrite composites containing mixed ferrites. Bull Mater Sci. 2001, 24(6), 623, doi:10.1007/BF02704011.
13.Ray A, Roy A, De S, Chatterjee S, Das S. Frequency and temperature dependent dielectric properties of TiO2 -V2O5 nanocomposites. J Appl Phys. 2018, 123(10), 104102. doi:10.1063/1.5012586.
14.Ullah A, Ullah A, Woo WS, Ahn CW, Kim IW. Dielectric spectroscopy of lead- free Bi0.5(Na0.75K0.25)0.5TiO3-BiAlO3ceramics. Ceram Int. 2014, 40, 11335-11342. doi:10.1016/j.ceramint.2014.03.116
15.Ray A, Roy A, Bhattacharjee S, et al. Correlation between the dielectric and electrochemical properties of TiO2-V2O5 nanocomposite for energy storage application. Electrochim Acta. 2018, 291,404-413, doi:10.1016/j.electacta.2018.02.033
16.Park W, Jo G, Hong W, et al. High-performance UV detector made of ultra-long ZnO bridging nanowires. Nanotechnology, 2009, 20, 45501, doi:10.1088/0957- 4484/20/4/045501
17.Kaur R, Sharma V, Kumar M, Singh M, Singh A. Conductivity relaxation in Pb0.9Sm0.10Zr0.405Ti0.495Fe0.10O3solid solution. J Alloys Compd. 2017, 735, 1472, doi:10.1016/j.jallcom.2017.11.254
18.Mohanty S, Choudhary RNP, Padhee R, Parida BN. Dielectric and impedance spectroscopy of BiFeO3– NaTaO3multiferroics. Ceramics International. 2014, 40, 9017-9025.
19.Sheikh MS, Sakhya AP, Sadhukhan P, Dutta A, Das S, Sinha TP. Dielectric relaxation and Ac conductivity of perovskites CH3NH3PbX3(X = Br, I). Ferroelectrics. 2017, 514(1), 146-157. doi:10.1080/00150193.2017.1359023
20.Sheikh MS, Sakhya AP, Dutta A, Sinha TP. Dielectric relaxation of CH3NH3PbI3thin film. Thin Solid Films. 2017, 638, 277-281. doi:10.1016/j.tsf.2017.07.070
21.Song J, Li J, Li X, Xu L, Dong Y, Zeng H. Quantum Dot Light-Emitting Diodes Based on Inorganic Perovskite Cesium Lead Halides (CsPbX3). Adv Mater. 2015, 27(44), 7162-7167. doi:10.1002/adma.201502567
22.Palazon F, Akkerman QA, Prato M, Manna L. X-ray lithography on perovskite nanocrystals films: From patterning with anion-exchange reactions to enhanced stability in air and water. ACS Nano. 2016, 10(1), 1224-1230. doi:10.1021/acsnano.5b06536
23.WangY, Li X,SongJ, Xiao L, Zeng H,Sun H.All-InorganicColloidal Perovskite Quantum Dots: A New Class of Lasing Materials with Favorable Characteristics. Adv. mater, 2015, 27(44), 7101-7108. doi:10.1002/adma.201503573
24.Yakunin S, Protesescu L, Krieg F, et al. Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halideperovskites. Nat Commun. 2015, 6, 1-8. doi:10.1038/ncomms9056
25.25. Lasing N, Xing G, Kumar MH, et al. Solution-Processed Tin-Based Perovskite for near-infrared lasing. Adv. mater, 2016, 28(37), 8191-8196. doi:10.1002/adma.20160141
Published
2026-06-06
How to Cite
Hiral Patel, & Piyush Vyas. (2026). Investigation of CsPbBr3: DC Electrical Properties, Complex Impedance Study, and Optoelectronic Behavior. Revista Electronica De Veterinaria, 24(4), 773-777. https://doi.org/10.69980/redvet.v24i4.2450
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