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صفحه اصلی
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سی و دومین کنفرانس بین المللی مهندسی برق
Electronic properties of 2D perovskites NMA2PbBr4 and NEA2PbBr4 for PeLED applications: first principle approach
نویسندگان :
Samad Shokouhi
1
Seyedeh bita Saadatmand
2
Vahid Ahmadi
3
1- دانشگاه تربیت مدرس
2- دانشگاه تربیت مدرس
3- دانشگاه تربیت مدرس
کلمات کلیدی :
Perovskite light emitting diode،two-dimensional perovskite،density functional theory،thermodynamic stability
چکیده :
Perovskite light emitting diode (PeLED) with two-dimensional perovskite NMA2PbBr4 and NEA2PbBr4 is proposed as an active area. These materials have aromatic cations and have outstanding stability compared to three-dimensional (3D) perovskite materials. In this study, using density functional theory (DFT), thermodynamic stability, bandgap, effective mass, density of states, and refractive index are investigated. NMA2PbBr4 and NEA2PbBr4 have a direct gap of 2.714 (eV) and 2.607 (eV), respectively. The reason for the blue shift of NEA2PbBr4 compared to NMA2PbBr4 is the smaller bond angle Pb-Br-Pb and more overlap of orbitals.
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بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 41.7.4