Abstract
A light emitting diode (LED) based on a two dimensional (2D) hybrid organic-inorganic semiconductor (HOIS) functioning at room temperature is demonstrated. LED is fabricated by depositing a layer of (4-fluorophenethylamine-H)2PbI4 on an ITO substrate. It is the first time that such a room temperature excitonic LED based on 2D lead iodide perovskite is presented, as well as for its simplicity, low cost, ambient conditions fabrication and functioning at 5–10V. The newly introduced class of 3D HOIS perovskite LEDs, is now broadened with the implementation of the 2D HOIS. Novel functionalities can be realized since it is now possible to access the hybrid's 2D semiconductor advantageous properties, such as increased excitonic binding energy, oscillator strength and peak wavelength tunability.
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