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Ali Umar MI, Ahdaliza AZ, El-Bahy SM, Aliza N, Sadikin SN, Ridwan J, Ehsan AA, Amin MA, El-Bahy ZM, Ali Umar A. Optoelectrical Properties of Hexamine Doped-Methylammonium Lead Iodide Perovskite under Different Grain-Shape Crystallinity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13071281. [PMID: 37049374 PMCID: PMC10096868 DOI: 10.3390/nano13071281] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/03/2023] [Accepted: 04/03/2023] [Indexed: 05/27/2023]
Abstract
The crystallinity properties of perovskite influence their optoelectrical performance in solar cell applications. We optimized the grain shape and crystallinity of perovskite film by annealing treatment from 130 to 170 °C under high humidity (relative humidity of 70%). We found that the grain size, grain interface, and grain morphology of the perovskite are optimized when the sample was annealed at 150 °C for 1 h in the air. At this condition, the perovskite film is composed of 250 nm crystalline shape grain and compact inter-grain structure with an invincible grain interface. Perovskite solar cells device analysis indicated that the device fabricated using the samples annealed at 150 °C produced the highest power conversion efficiency, namely 17.77%. The open circuit voltage (Voc), short-circuit current density (Jsc), and fill factor (FF) of the device are as high as 1.05 V, 22.27 mA/cm2, and 0.76, respectively. Optoelectrical dynamic analysis using transient photoluminescence and electrochemical impedance spectroscopies reveals that (i) carrier lifetime in the champion device can be up to 25 ns, which is almost double the carrier lifetime of the sample annealed at 130 °C. (ii) The interfacial charge transfer resistance is low in the champion device, i.e., ~20 Ω, which has a crystalline grain morphology, enabling active photocurrent extraction. Perovskite's behavior under annealing treatment in high humidity conditions can be a guide for the industrialization of perovskite solar cells.
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Affiliation(s)
- Marjoni Imamora Ali Umar
- Department of Physics Education, Faculty of Tarbiyah, Universitas Islam Negeri Mahmud Yunus, Batusangkar 27213, West Sumatera, Indonesia
| | - Annisa Zahra Ahdaliza
- Department of Physics Education, Faculty of Tarbiyah, Universitas Islam Negeri Mahmud Yunus, Batusangkar 27213, West Sumatera, Indonesia
| | - Salah M. El-Bahy
- Department of Chemistry, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Nur Aliza
- Department of Physics Education, Faculty of Tarbiyah, Universitas Islam Negeri Mahmud Yunus, Batusangkar 27213, West Sumatera, Indonesia
| | - Siti Naqiyah Sadikin
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
| | - Jaenudin Ridwan
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
| | - Abang Annuar Ehsan
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
| | - Mohammed A. Amin
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Zeinhom M. El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Akrajas Ali Umar
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
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