Photophysical Investigation of an Organic–Inorganic Hybrid Composite: MAPbBr₃ Perovskite Embedded in UiO-66
کد مقاله : 1378-ICOC
نویسندگان
نسا جعفرزاده1، لیلا ندائی *2، محبوبه ربانی1، شهاب نوروزیان علم1
1تهران میدان رسالت خیابان هنگام دانشگاه علم وصنعت ایران
2دانشجوی مقطع کارشناسی ارشد دانشگاه علم وصنعت ایران
چکیده مقاله
In this work, the MAPbBr₃@UiO-66 composite was synthesized and examined to evaluate its structural stability and optical behavior. XRD analysis confirmed the coexistence of MAPbBr₃ and UiO-66 without structural degradation, showing that both crystalline frameworks remain intact during composite formation. Diffuse reflectance spectra revealed two characteristic absorption features: a UV band originating from UiO-66 and a visible-edge absorption corresponding to MAPbBr₃, demonstrating that both components retain their optical identity within the hybrid system. Photoluminescence measurements showed a dominant emission peak near 410–420 nm, attributed to UiO-66 or defect-assisted recombination pathways, while the typical green emission of MAPbBr₃ was significantly suppressed. These .findings indicate that although MAPbBr₃ preserves its electronic structure inside the MOF, its emission pathways are strongly influenced by the UiO-66 environment
کلیدواژه ها
Optical properties, Organic-Inorganic Hybrid Perovskite, MOF
وضعیت: پذیرفته شده