Investigation of Optical, Structural, Morphological and Electrical Properties of Electrodeposited Cobalt Doped Copper Selenide (Cu_(1-x) Co_x Se) Thin Films
DOI:
https://doi.org/10.48048/tis.2022.5686Keywords:
Copper selenide, Cobalt dopant, XRD, Electrical properties, Semiconductor filmsAbstract
Undoped and cobalt doped copper selenide thin films have been successfully prepared unto fluorine tin oxide (FTO) substrates by electrodeposition method using copper acetate, cobalt nitrate and selenium (IV) oxide as precursors for copper, cobalt and selenium ions respectively. Deposited thin films were subjected to optical, structural, morphological, compositional and electrical analysis using spectrophotometer, x-ray diffractometer, scanning electron microscope (SEM), energy dispersive x-ray spectroscopy (EDS) and 4-point probe. Optical results observed between the wavelength range of 300 nm and 1,000 nm showed that the films have good optical responses. Absorbance values ranged between 0.1 and 0.81 while transmittance lies between 15.59 and 78.68 %. Energy band gap of the films was found to vary from 2.10 to 2.28 eV. These results showed that cobalt as a dopant could be used to modify properties of copper selenide thin films. Structural analysis showed that the deposited films are polycrystalline in nature with hexagonal structural phase. Crystallite sizes of range 27.56 to 34.27 nm were obtained while dislocation density lied between and . Microstrain ranged between and . Micrograph images showed flake-like particles that increased in size as percentage of cobalt increased. Energy dispersive spectroscope (EDS) results confirmed the incorporation of cobalt on the deposited copper selenide films. Electrical resistivity of the films increased from to while conductivity decreased from to as a result of variation in cobalt ion concentration. These properties of the deposited thin films positioned them for solar cell and optoelectronics device applications.
HIGHLIGHTS
- Energy band gap of electrosynthesized cobalt doped copper selenide ranged from 2.10 to 2.28 eV
- Film thickness values ranged from 48.41 and 176.79 nm. Thickness values of the films were found to increase as concentration of cobalt increase
- Increase in dopant concentration resulted to shift in diffraction peaks towards larger angles
- Increase in crystallite size from 27.56 - 34.27 nm was observed as dopant concentration increases
- SEM images of the films revealed flake - like particles of different sizes
GRAPHICAL ABSTRACT
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M Petrovic, M Gilic, J Cirkovic, M Romcevic, N Romcevic, J Trajic and I Yahia. Optical properties of CuSe thin films-band gap determination. Sci. Sintering 2017; 49, 167-74.
AA Yadav. Nanocrystalline copper selenide thin films by chemical spray pyrolysis. J. Mater. Sci. Mater. Electron. 2014; 25, 1251-7.
AL Donne, V Trifiletti and S Binetti. New Earth-Abundant thin film solar cells based on chalcogenides. Front. Chem. 2019; 7, 297.
AA Yadav. Photoelectrochemical studies on spray deposited copper selenide thin films. J. Mater. Sci. Mater. Electron. 2014; 25, 3096-102.
IA Ezenwa, NA Okereke and NL Nonso. Optical properties of copper selenide thin film. Int. Res. J. Eng. Sci. Tech. Innovat. 2013; 2, 82-7.
S Thirumavalavan, K Mani and S Sagadevan. Investigation of the structural, optical and electrical properties of copper selenide thin films. Mater. Res. 2015; 18, 1000-7.
BM Palve, SR Jadkar and HM Pathan. A simple chemical route to synthesize the umangite phase of copper selenide (Cu3Se2) thin film at room temperature. J. Semiconduct. 2017; 38, 063003.
R Yousefi. Metal-Selenide nanostructures: Growth and properties. In: A Qurashi (Ed.). Metal Chalcogenide Nanostructures for Renewable Energy Applications. Scrivener Publishing LLC, Beverly, Massachusetts. 2014.
HK Sadekar. Optical and structural properties of cuse thin films deposited by chemical bath deposition (CBD) technique. Int. Res. J. Sci. Eng. 2018; 2018, 20-2.
A Zyoud, K Murtada, H Kwon, HJ Choi, TW Kim, MHS Helal, M Faroun, H Bsharat, D Park and HS Hilal. Copper selenide film electrodes prepared by combined electrochemical/chemical bath depositions with high photo-electrochemical conversion efficiency and stability. Solid State Sci. 2018; 75, 53-62.
SS Dhasade, JV Thombare, RS Gaikwad, SV Gaikwad, SS Kumbhare and S Patil. Copper selenide nanorods grown at room temperature by electrodeposition. Mater. Sci. Semicond. Process. 2015; 30, 48-55.
RS Mane, AV Shaikh, OS Joo, SH Han and HM Pathan. Electrodeposition of copper selenide films from acidic bath and their properties. AIP Conf. Proc.2012; 1451, 194.
B Güzeldir and M Sağlam. Using different chemical methods for deposition of copper selenide thin films and comparison of their characterization. Spectrochim. Acta Mol. Biomol. Spectros. 2015; 150, 111-9.
Z Lin, C Hollar, JS Kang, A Yin, Y Wang, HY Shiu, Y Huang, Y Hu, Y Zhang and XA Duan. Solution processable high-performance thermoelectric copper selenide thin film. Adv. Mater. 2017; 29, 1606662.
A Astam, Y Akaltun and M Yıldırım. Conversion of SILAR deposited Cu3Se2 thin films to Cu2−xSe by annealing. Mater. Lett. 2016; 166, 9-11.
ST Pawar, GT Chavan, VM Prakshale, A Sikora, SM Pawar, SS Kamble, NB Chaure, NN Maldar and LP Deshmukh. Solution grown ZnSe: Co nanocrystalline thin films: The characteristic properties. AIP Conf. Proc. 2018; 1989, 020036.
P Mallikarjuna, J Sivasankar, MR Begam, NM Rao, S Kaleemulla and J Subrahmanyam. Structural, optical and magnetic properties of Co doped ZnSe powders. Mech. Mater. Sci. Eng. J. 2017; 9, 242-8.
J Singh and NK Verma. Structural, optical and magnetic properties of cobalt-doped CdSe nanoparticles. Bull. Mater. Sci. 2014; 37, 541-7.
MA Ashoush, MM El-Okr and ZMA El-Fattah. Preparation of cobalt doped Bi2Se3 nano-topological insulators. J. Mater. Sci. Mater. Electron. 2017; 28, 3659-63.
F Ming, H Liang, H Shi, X Xu, G Mei and Z Wang. MOF-derived Co-doped nickel selenide/C electrocatalysts supported on Ni foam for overall water splitting. J. Mat. Chem. A 2016; 4, 15148-55.
J Song, SS Li, S Yoon, WK Kim, J Kim, J Chen, V Craciun, TJ Anderson, OD Crisalle and F Ren. Growth and characterization of CdZnS thin film buffer layers by chemical bath deposition. In: Proceedings of the Conference Record of the Thirty-first IEEE Photovoltaic Specialists Conference, Florida. 2005, p. 449-52.
F Göde and S Ünlü. Nickel doping effect on the structural and optical properties of indium sulfide thin films by SILAR. Open Chem. 2018; 16, 757-62.
P Chaudhary and V Kumar. Preparation of ZnO thin film using sol-gel dip-coating technique and their characterization for optoelectronic applications. World Sci. News 2019; 121, 59-66.
D Shelke, P Chaudhari and S Bhusal. Study the rate of deposition of zinc metal ions on metal by using various chemicals. London J. Eng. Res. 2019; 19, 73-80.
S Kumar, S Pande and P Verma. Factor effecting electro-deposition process. Int. J. Curr. Eng. Tech. 2015; 5, 700-4.
K Ravindranah, KDV Prasad and MC Rao. Spectroscopic and luminescent properties of Co2+ doped tin oxide thin film by spray pyrolysis. AIMS Mater. Sci. 2016; 3, 796-807.
CC Okorieimoh, U Chime, AC Nkele, AC Nwanya, IG Madiba, AKH Bashir, S Botha, PU Asogwa, M Maaza and FI Ezema. Room-temperature synthesis and optical properties of nanostructured Ba-Doped ZnO thin films. Superlattice. Microst. 2019; 130, 321-31.
M Anbarasi, VS Nagarethinam, R Baskaran and V Narasimman. Studies on the structural, morphological and optoelectrical properties of spray deposited CdS:Pb thin films. Pac. Sci. Rev. A Nat. Sci. Eng. 2016; 18, 72-7.
A Hadri, C Nassiri, FZ Chafi, M Loghmarti and A Mzerd. Effect of acetic acid adding on structural, optical and electrical properties of sprayed ZnO thin films. Energy Environ. Focus 2015; 4, 12-7.
C Awada, GM Whyte, PO Offor, FU Whyte, MB Kanoun, S Goumri-Said, A Alshoaibi, ABC Ekwealor, M Maaza and FI Ezema. Synthesis and studies of electrodeposited yttrium arsenic selenide nanofilms for Opto-Electonic applications. Nanomaterials 2020; 10, 1557.
PP Hankare, AS Khomane, PA Chate, KC Rathod and KM Garadkar. Preparation of copper selenide thin films by simple chemical route at low temperature and their characterization. J. Alloy. Comp. 2009; 469, 478-82.
J Kaur, A Parmar, SK Tripathi and N Goyal. Optical study of Ge1Sb2Te4 and GeSbTe thin films. Mater. Res. Express 2019, 6, 046417.
NJ Egwunyenga, NL Ezenwaka, IA Ezenwa and NL Okoli. Effect of annealing temperature on the optical properties of electrodeposited ZnO/MgO superlattice. Mater. Res. Express 2019; 6, 105921.
C Augustine, MN Nnabuchi, RA Chikwenze, FNC Anyaegbunam, PN Kalu, BJ Robert, CN Nwosu, CO Dike and E Taddy. Comparative investigation of some selected properties of Mn3O4/PbS and CuO/PbS composites thin films. Mater. Res. Express 2019; 6, 066416.
E Güneri. The Role of Au Doping on the Structural and Optical Properties of Cu2O Films. J. Nano Res. 2019; 58, 49-67.
R Bekkari, B Jaber, H Labrim, M Quafi, N Zayyoun and L Laahab. Effect of solvents and stabilizer molar ratio on the growth orientation of sol-gel derived ZnO THin films. Int. J. Photoenergy 2019; 2019, 3164043.
AA Abouda, A Mukherjeeb, N Revaprasaduc and AN Mohamed. The effect of Cu-doping on CdS thin films deposited by the spray pyrolysis technique. J. Mater. Res. Tech. 2019; 8, 2021-30.
F Aydın, FM Tezel and 1A Kariper. Optical, electrical, structural and magnetic properties of BiSe thin films produced by CBD on different substrates for optoelectronics applications. Mater. Res. Express 2018; 6, 016425.
P Sreedev, V Rakhesh and NS Roshina. Optical characterization of ZnO thin films prepared by chemical bath deposition method. IOP Conf. Mater. Sci. Eng. 2018; 377, 012086.
E Guneri and A Kariper. Characterization of high quality Chalcogenide thin films fabricated by Chemical Bath Deposition. Electron. Mater. Lett. 2013; 9, 13-7.
1A Kariper. Synthesis and characterization of CrSe thin film produced via chemical bath deposition. Opt. Rev. 2017; 24, 139-46.
S Mushtaq, B Ismail, M Raheel and A Zeb. Nickel antimony sulphide thin films for solar cell application: Study of optical constants. Nat. Sci. 2016; 8, 33-40.
AA Hssi, L Atourki, N Labchir, M Ouafi, K Abouabassi, A Elfanaoui, A Ihlal and K Bouabid. Optical and dielectric properties of electrochemically deposited p-Cu2O films. Mater. Res. Express 2020; 7, 016424.
GM Whyte, C Awada, PO Offor, FU Whyte, MB Kanoun, S Goumri-Said, A Alshoaibi, ABC Ekwealor, M Maaza and FI Ezema. Experimental and theoretical studies of the solid-state performance of electrodeposited Yb2O3/As2Se3 nanocomposite films. J. Alloy. Comp. 2021; 855, 157324.
J Tauc, R Grigorovici and A Vancu. Optical properties and electronic structure of amorphous germanium. Phys. Status Solidi B 1966; 15, 627-37.
LN Ezenwaka, NS Umeokwonna and NL Okoli. Optical, structural, morphological, and compositional properties of cobalt doped tin oxide (CTO) thin films deposited by modified chemical bath method in alkaline medium. Ceram. Int. 2020; 46, 6318-25.
G Nam, H Yoon, B Kim, L Dong-Yul, JS Kim, L Jae-Young. Effect of Co doping concentration on the structural properties and optical parameters of Co-doped ZnO thin films by Sol-Gel dip coating method. J. Nanoscience Nanotechnology 2014; 14, 8544-8.
R Sahebi, MR Roknabadi and M Behdani. Effect of Ag-doping on the structural, optical, electrical and photovoltaic properties of thermally evaporated cadmium selenide thin films. Mater. Res. Express 2020; 6, 126453.
G Poongodi, P Anandan, RM Kumar and R Jayavel. Studies on visible light photocatalytic and antibacterial activities of nanostructured cobalt doped ZnO thin films prepared by sol-gel spin coating method. Spectrochim. Acta Mol. Biomol. Spectros. 2015; 148, 237-43.
M Liu, L Hu, Y Ma, M Feng, S Xu and H Li. Effect of Pt doping on the preferred orientation enhancement in FeCo/SiO2 nanocomposite films. Sci. Rep. 2019; 9, 10670.
E Yücel and Y Yücel. Fabrication and characterization of Sr-doped PbS thin films grown by CBD. Ceram. Int. 2017; 43, 407-13.
EM Mkawi, K Ibrahim, MKM Ali, MA Farrukh and AS Mohamed. The effect of dopant concentration on properties of transparent conducting Al-doped ZnO thin films for efficient Cu2ZnSnS4 thin-film solar cells prepared by electrodeposition method. Appl. Nanoscience 2015; 5, 993-1001.
MY Li, M Yang, E Vargas, K Neff, A Vanli and R Liang. Analysis of variance on thickness and electrical conductivity measurements of carbon nanotube thin films. Meas. Sci. Tech. 2016; 27, 095004.
RS Waremra and P Betaubun. Analysis of Electrical Properties Using the four point Probe Method. In: Proceedings of the 3rd International Conference on Energy, Environmental and Information System, Semarang, Indonesia. 2018, p. 13019.
A Mb, M Shahryari and S Nanekarany. Study and calculation electrical properties of silver thin layers by four-point probe method. J. Laser. Optic. Photon. 2017; 4, 1000150.
F Cemin, D Lundin, D Cammilleri, T Maroutian, P Lecoeur and T Minea. Low electrical resistivity in thin and ultrathin copper layers grown by high power impulse magnetron sputtering. J. Vac. Sci. Tech. 2016; 34, 051506.
IA Ezenwa, NA Okereke and NL Okoli. Electrical properties of copper selenide thin films. IPASJ Int. J. Electr. Eng. 2013; 1, 1-4.
JYC Liew, Z Talib, W Mahmood, M Yunus, Z Zainal, S Halim, M Moksin, W Yusoff and KP Lim. Structural, morphology and electrical properties of layered copper selenide thin films. Cent. Eur. J. Phys. 2009; 7, 379-84.
PPJ Helan, K Mohanraj and G Sivakumar. Doping of Sn transition metal in CuSe2 thin films and its effect on structural evolvement and opto-electrical properties. Appl. Phys. Mater. Sci. Process. 2016; 122, 718.
SS Shariffudin, M Salina, SH Herman and M Rusop. Effect of film thickness on structural, electrical and optical properties of sol - gel deposited layer by layer ZnO nanoparticles. Trans. Electr. Electron. Mater. 2012; 13, 102-5.
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