Suppression of optical losses in near-infrared PeLEDs using CH(NH₂)₂PbI₃ nanorods embedded in fluoride-based emissive layers
Year: 2025
Type: article
Abstract: Hybrid organic-inorganic perovskite semiconductors have been indicated promising capability to be used in a category of solid-state technologies such as light emitting diodes (LEDs), which have been reached to higher external quantum efficiency ( EQE ) more than 20%. The efficiency of these structures can be boosted by manipulating the photon extraction from the active layer and then from substrate of the device. The light extraction efficiency ( LEE ) is responsible of relation between photon and the structure of device. So, in this manuscript, by applying new designs of nanostructures in near-infrared (NIR) PeLED, the interaction between produced photons inside the emissive material and the whole package of the structure became less. In nanostructured active layer (AL), based on FAPbI 3 nanorods inside Fluoride-based membrane included in Magnesium Fluoride (MgF 2 ) and Lithium Fluoride (LiF), the optical efficiency of the NIR PeLED reached about 45%, which shows that its LEE has multiped 3 to 4 times by using nanostructured AL, by considering same volume of perovskite in comparison with planar structure.
Source: Scientific Reports
Authors: Nava Tabibifar, Mehdi Eskandari, Davood Fathi, Farhad Akbari Boroumand, Saeed Rahimi
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
OpenAlex ID: W4417108732