Fabrication and performance of MAPbI3 perovskite solar cells under extreme humidity conditions: A spin-coating approach
Solid State Sciences, cilt.174, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 174
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.solidstatesciences.2026.108227
- Dergi Adı: Solid State Sciences
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Anahtar Kelimeler: Flexible photovoltaics, High humidity, MAPbI3, Perovskite solar cells, Spin-coating
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
This study reports the fabrication and characterization of flexible methylammonium lead iodide (MAPbI3) perovskite solar cells produced under the uncontrolled high-humidity and high-temperature summer conditions of Samsun, Turkey, where relative humidity (RH) regularly exceeds 90 % and ambient temperature approaches 30 °C. A simple one-step spin-coating method was employed without the use of gloveboxes, vacuum chambers, or environmental control systems conditions that reflect realistic laboratory settings in humid, coastal environments. Structural, morphological, optical, and electrical characterizations were performed using XRD, SEM, EDS, FTIR, UV–Vis spectroscopy, and electrochemical impedance spectroscopy (EIS). XRD confirmed the formation of phase-pure, crystalline MAPbI3 with dominant (110) orientation despite the adverse ambient atmosphere. SEM analysis revealed compact yet partially defective morphologies resulting from moisture-induced heterogeneous crystallization. EDS confirmed compositional integrity with minor oxygen enrichment attributed to environmental oxidation. FTIR and UV–Vis spectra verified the retention of characteristic perovskite vibrational and optical features, indicating partial chemical stability during film formation. Electrical measurements exhibited diode-like I-V behavior and moderate charge transport characteristics consistent with Jonscher's power law, confirming the semiconducting nature of the layers even under high-humidity processing. These findings demonstrate that while device efficiency is limited under such extreme conditions, perovskite film formation and photovoltaic functionality remain achievable, providing critical empirical insights for low-cost, humidity-tolerant fabrication strategies suitable for subtropical and coastal regions.