Aerospace Defense

Investigating the role of complexing agent in changing the ratio of copper selenide alloy semiconductor for infrared generation in aerospace systems.

Document Type : Original Article

Authors

Semiyeh Chobin 1
Nader Ghobadi 2
mahmad sadegh abdi moghsudelo 3

1 Department of Physics, Faculty of Basic Sciences, Malayer University, Malayer, Iran.

2 Department of Physics, Faculty of Basic Sciences, Malayer University, Malayer, Iran

3 Department of Materials Engineering, Faculty of Engineering, Malayer University, Malayer, Iran

Abstract
In this work, nanostructured copper selenide (CuSe) thin films were fabricated using a simple solution‑based chemical bath deposition method, which is attractive due to its low cost, readily available precursors, and scalability for potential aerospace sensing applications. In the chemical bath deposition process, growth parameters play a crucial role in determining the physical and electronic properties of the final product. In addition to the concentration of selenium ions, the complexing agent is a key factor affecting film formation and properties. The complexing agent controls the release rate of metal ions in the solution and consequently influences the stoichiometry and electronic structure of the deposited films. It was observed that variations in the concentration of the complexing agent significantly modify the band gap energy .Specifically, increasing the concentration of the complexing agent leads to a reduction in the band gap energy. This behavior can be attributed to the corresponding increase in the effective concentration of free copper ions in the solution, which alters the growth mechanism and electronic structure of CuSe thin films. Therefore, the complexing agent, through its influence on the concentration of metal ions during deposition, plays a fundamental role in tuning the band gap energy, which is important for optimizing these thin films for aerospace sensing applications

Keywords

CuSe
Chemical Bath Deposition
Complex Agent

Subjects

 
[1] Optical Properties of Materials and Their Applications. Edited by Jai Singh. John-Wiley & Sons Inc. (1e, 2006)
[12] Tauc, J, Menth, A: States in the gap. J Non-Cryst Solids 569, (1972) 8–10.
[2] C. Burda, X. Chen, R. Narayanan and M.A. El-Sayed, Chemistry and Properties of Nanocrystals of Different Shapes, Chem. Rev. 105 (2005) 1025-1102.
[3] A.L. Efros, M. Rosen, Ann. Rev. Mater. Sci. 30 (2000)475.
[4] L.E. Brus, Appl. Phys. A. 53 (1991) 465.
[5] M. Kranjčec, I.P. Studenyak, M.V. Kurik, On the Urbach rule in non-crystalline solids, J. Non·Cryst. Solids, 355 (2009) 54-57. https://doi.org/10.1016/j.jnoncrysol.2008.03.05[6] K. Tanaka, Minimal Urbach energy in non-crystalline materials, J. Non·Cryst. Solids, 389 (2014) 35-37. https://doi.org/10.1016/j.jnoncrysol.2014.02.004

[7] P.P. Hankare, P.A. Chate, S.D. Delekar, M.R. Asabe, I.S. Mulla, Journal of Physics and Chemistry of Solids, 67 (2006) 2310-2315.

[8] C.D. Lokhande, P.M. Gondkar, R.S. Mane, V.R. Shinde, S.-H. Han, Journal of Alloys and Compounds, 475 (2009) 304-311.

[9] A.K. Dutta, S.K. Maji, D.N. Srivastava, A. Mondal, P. Biswas, P. Paul, B. Adhikary, ACS Applied Materials & Interfaces, 4 (2012) 1919-1927.

[10] S.H. Mohamed, Journal of Physics D: Applied Physics, 43 (2010) 035406.
[11] Y. Chen, G.-F. Huang, W.-Q. Huang, L.-L. Wang, Y. Tian, Z.-L. Ma, Z.-M. Yang, Materials Letters, 75 (2012) 221-224.
[12] G. Poongodi, P. Anandan, R.M. Kumar, R. Jayavel, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 148 (2015) 237-243.
[13] A.K. Dutta, S.K. Maji, D.N. Srivastava, A. Mondal, P. Biswas, P. Paul, B. Adhikary, ACS Applied Materials & Interfaces, 4 (2012) 1919-1927.
[14] A.R. Patil, V.N. Patil, P.N. Bhosale, L.P. Deshmukh, Materials Chemistry and Physics, 65 (2000) 266-274.
1[15] N. Ghobadi. Derivation of ineffective thickness method for investigation of the exact behavior of the optical transitions in nanostructured thin films. J Mater Sci: Mater Electron. (2015), DOI 10.1007/s10854-016-4925-3
[16] N. Ghobadi, M. Ganji, C. Luna, A. Arman, A. Ahmadpourian, Effects of substrate temperature on the properties of sputtered TiN thin films, J. Mater. Sci.: Mater. Electron. 27, 2800–2808 (2016).
[17] Sahar Rezaee, Nader Ghobadi. Synthesis of Ag-Cu-Pd alloy thin films by DC-magnetron sputtering: Case study on microstructures and optical properties. Results in Physics 9 (2018) 1148–1154.
[18] N. Ghobadi, E. Gholami Hatam, Surface studies, structural characterization and quantity determination of PbSe nanocrystals deposited by chemical bath deposition technique. J. Cryst. Growth 418, 111–114 (2015).
[19] P Sohrabi, N Ghobadi. Optical and photocatalytic behaviors of iron selenide thin films grown by chemical bath deposition versus deposition time and annealing temperature. Applied Physics A 125 (9), 620.
[20] M. Alijani, B. K.  Kaleji, S. Rezaee. Highly visible-light active with Co/Sn co-doping of TiO2 nanoparticles for degradation of methylene blue Journal of Materials Science: Materials in Electronics. October 2017, Volume 28, Issue 20, pp 15345–15353.
Aerospace Defense
Volume 4, Issue 3
Winter 2026
Pages 89-101

  • Receive Date 10 April 2026
  • Revise Date 20 May 2026
  • Accept Date 20 May 2026

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