CHEMICAL BATH DEPOSITION OF PbS THIN FILMS

Öz

In the current study, thin films of PbS were fabricated at 35 ᵒC bath temperature via chemical bath deposition (CBD) method. During the experiment, 0.1460 M NaOH and 0.0085 M Pb (NO₃)₂ were dissolved in 100 ml of deionized water and 0.510 M thiourea was inserted. Thiourea, which is used as the ligand source, was inserted to the solution at zero, one point five, three, six and nine minutes intervals, in 10 parts, unlike conventional production methods. When the first sample was produced, thiourea was inserted to the solution at one time and compared with other samples. XRD patterns were used in determining the structural features of the produced films. XRD patterns show that peak density increased significantly when thiourea was inserted at intervals of three, six and nine minutes. A scanning electron microscope (SEM) was utilized in analyzing the morphological properties of the films. When SEM images were examined, it was observed that when thiourea was inserted at different time intervals, there were no pinholes.

Anahtar Kelimeler

• Chemical bath deposition
• PbS
• Thiourea
• Thin Films

Kaynakça

1. [1] Raniero, L., C. L. Ferreira, L. R. Cruz, A. L. Pinto, R. M. P. Alves, “Photoconductivity activation in PbS thin films grown at room temperature by chemical bath deposition,” Physica B: Condensed Matter, 405(5), 1283–1286, 2010.
2. [2] Barrios-Salgado, E. et al., “Effect of Deposition Time on the Optoelectronics Properties of PbS Thin Films Obtained by Microwave-Assisted Chemical Bath Deposition,” Advances in Condensed Matter Physics, 2019, 2019.
3. [3] García-Valenzuela, J. A., M. R. Baez-Gaxiola, M. Sotelo-Lerma, “Chemical bath deposition of PbS thin films on float glass substrates using a Pb(CH3COO)2-NaOH-(NH2)2CS- N(CH2CH2OH)3-CH3CH2OH definite aqueous system and their structural, optical, and electrical/ photoelectrical characterization,” Thin Solid Films, 534, 126–131, 2013.
4. [4] Yücel, E., Y. Yücel, B. Beleli, “Optimization of synthesis conditions of PbS thin films grown by chemical bath deposition using response surface methodology,” Journal of Alloys and Compounds, 642, 63–69, 2015.
5. [5] Choudhury, N., B. K. Sarma, “Structural analysis of chemically deposited nanocrystalline PbS films,” Thin Solid Films, 519(7), 2132–2134, 2011.
6. [6] Jana, S., R. Thapa, R. Maity, K. K. Chattopadhyay, “Optical and dielectric properties of PVA capped nanocrystalline PbS thin films synthesized by chemical bath deposition,” Physica E: Low-Dimensional Systems and Nanostructures, 40(10), 3121–3126, 2008.
7. [7] Kumar, D., G. Agarwal, B. Tripathi, D. Vyas, V. Kulshrestha, “Characterization of PbS nanoparticles synthesized by chemical bath deposition,” Journal of Alloys and Compounds, 484(1–2), 463–466, 2009.
8. [8] Carrillo-Castillo, A. et al., “Effect of chemical bath deposition parameters on the growth of pbs thin films for tfts applications,” Chalcogenide Letters, 10(3), 105–111, 2013.

9. [9] Saravana Kumaran, T. Parveen Banu, S., “Investigation on structural and optical properties of chemically deposited Pbs thin films,” International Journal of Recent Scientific Research, 4(11), 1685–1687, 2013.
10. [10] Altıokka, B., “Effects of Inhibitor on PbS Thin Films Obtained by Chemical Bath Deposition,” Arabian Journal for Science and Engineering, 40(7), 2085–2093, 2015.
11. [11] Abdallah, B., R. Hussein, N. Al-Kafri, W. Zetoun, “PbS Thin Films Prepared by Chemical Bath Deposition: Effects of Concentration on the Morphology, Structure and Optical Properties,” Iranian Journal of Science and Technology, Transaction A: Science, 43(3), 1371–1380, 2019.
12. [12] Abbas, M. M., A. Ab-M. Shehab, A. K. Al-Samuraee, N. A. Hassan, “Effect of deposition time on the optical characteristics of chemically deposited nanostructure PBS thin films,” Energy Procedia, 6, 241–250, 2011.
13. [13] Koao, L. F., F. B. Dejene, H. C. Swart, “Synthesis of pbs nanostructures by chemical bath deposition method,” International Journal of Electrochemical Science, 9(4), 1747–1757, 2014.
14. [14] Gadave, K. M., S. A. Jodgudri, C. D. Lokhande, “Chemical deposition of PbS from an acidic bath,” Thin Solid Films, 245(1–2), 7–9, 1994.
15. [15] Bortamuly, G. P. Chetri, M. N. B. and S. B., “Structural and optical properties of Ni-doped CdS thin films prepared by chemical bath deposition method,” AIP Conference Proceedings, 1665, 47375–47377, 2015.
16. [16] Choudhury, N., B. K. Sarma, “Structural characterization of lead sulfide thin films by means of X-ray line profile analysis,” Bulletin of Materials Science, 32(1), 43–47, 2009.
17. [17] Obaid, A. S., M. A. Mahdi, Z. Hassan, M. Bououdina, “Characterization of nanocrystalline PbS thin films prepared using microwave-assisted chemical bath deposition,” Materials Science in Semiconductor Processing, 15(5), 564–571, 2012.
18. [18] Bhowmik, R., M. N. Murty, E. S. Srinadhu, “Magnetic modulation in mechanical alloyed Cr1.4Fe0.6O3oxide,” PMC Physics B, 1(1), 2008.
19. [19] Fouda, A. N., M. Marzook, H. M. Abd El-Khalek, S. Ahmed, E. A. Eid, A. B. El Basaty, “Structural and Optical Characterization of Chemically Deposited PbS Thin Films,” Silicon, 9(6), 809–816, 2017.