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Abel S, Tesfaye JL, Nagaprasad N, Shanmugam R, Dwarampudi LP, Deepak T, Zhang H, Krishnaraj R, Stalin B. Examining Impacts of Acidic Bath Temperature on Nano-Synthesized Lead Selenide Thin Films for the Application of Solar Cells. Bioinorg Chem Appl 2022; 2022:1003803. [PMID: 35069713 PMCID: PMC8767410 DOI: 10.1155/2022/1003803] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/02/2021] [Accepted: 12/22/2021] [Indexed: 02/07/2023] Open
Abstract
The influence of bath temperature on nano-manufactured PbSe (lead selenide) films was successfully generated by utilizing CBD on the acid solution's metal surface tool. Pb (NO3)2 was employed as a lead ion source as a precursor, while Na2O4Se was used as a selenide ion source. The XRD characterization revealed that the prepared samples are the property of crystalline structure (111), (101), (100), and (110) Miller indices. The scanning electron microscope indicated that the particles have a rock-like shape. There was a decrement of energy bandgap that is from 2.4 eV to 1.2 eV with increasing temperature 20°C-85°C. Thin films prepared at 85°C revealed the best polycrystal structure as well as homogeneously dispersed on the substrate at superior particle scales. The photoluminescence spectrophotometer witnessed that as the temperature of the solution bath increases from 20°C to 85°C, the average strength of PL emission of the film decreases. The maximum photoluminescence strength predominantly exists at high temperatures because of self-trapped exciton recombination, formed from O2 vacancy and particle size what we call defect centres, for the deposited thin films at 45°C and 85°C. Therefore, the finest solution temperature is 85°C.
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Affiliation(s)
- Saka Abel
- Dambi Dollo University, College of Natural and Computational Science, Department of Physics, Dembidolo, Ethiopia
| | - Jule Leta Tesfaye
- Dambi Dollo University, College of Natural and Computational Science, Department of Physics, Dembidolo, Ethiopia
- Centre for Excellence-Indigenous Knowledge, Innovative Technology Transfer and Entrepreneurship, Dambi Dollo University, Dembidolo, Ethiopia
| | - N. Nagaprasad
- Department of Mechanical Engineering, ULTRA College of Engineering and Technology, Madurai 625104, Tamilnadu, India
| | - R. Shanmugam
- TIFAC CORE HD, Department of Pharmacognosy, JSS Academy of Higher Education and Research, Ooty, Tamilnadu, India
| | - L. Priyanka Dwarampudi
- Department of Pharmacognosy, JSS Academy of Higher Education and Research, Ooty, Tamilnadu, India
| | - Tyagi Deepak
- Department of Management, Dambi Dollo University, Dembidolo, Ethiopia
| | - Hongxia Zhang
- State Key Laboratory of Biobased Materials and Green Paper Making, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong Province, China
| | - Ramaswamy Krishnaraj
- Centre for Excellence-Indigenous Knowledge, Innovative Technology Transfer and Entrepreneurship, Dambi Dollo University, Dembidolo, Ethiopia
- Dambi Dollo University, College of Engineering and Technology, Department of Mechanical Engineering, Dembidolo, Ethiopia
| | - B. Stalin
- Department of Mechanical Engineering, Anna University, Regional Campus Madurai, Madurai 625 019, Tamil Nadu, India
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