ITO-free Perovskite Light-Emitting Electrochemical Cell

Abstract

Since Complementary metal–oxide–semiconductor technology is the conventional technology for micro- and optoelectronics, integration of emerging materials, such as halide perovskites, into the process is an important branch of perovskite technologies development. In this regard ITO free device research becomes increasingly important. The Perovskite Light-Emitting electrochemical cells are a promising alternative to conventional Perovskite Light Emitting Diodes. In this work we demonstrate green (λEL = 523 nm) CsPbBr3 Perovskite Light-Emitting electrochemical cells with luminescence intensity of 50 kd/m2 integrated with Si++(111) substrate.

Issues, Challenges, and Future Perspectives of Perovskites for Energy Conversion Applications

“…Optoelectronic devices based on perovskites include solar cells, photodetectors, lasers, electrochemical cells, and light emitting diodes. Revolutionary applications of these devices are in the fields of energy harvesting and conversion, imaging and sensing, X-ray detectors, display and communication, and manufacturing and medicine [17,18]. Perovskite materials have several distinct properties.…”

Recent Patterning Methods for Halide Perovskite Nanoparticles

“…Many researchers have attempted to overcome this problem by fabricating a template for patterning perovskites via photolithography. [34][35][36][37][38] Research into patterning via additional templates is ongoing. A significant factor in template-based Halide perovskites emerge as attractive materials because of their superior optical and optoelectrical properties.…”

“…The research demonstrates that concentric morphologies can be effectively applied to lasers. Template-assisted patterning CsPbX 3 (X = Cl/Br, Br, Br/I) Laser [40] Template-assisted patterning MAPbBr 3 Laser [41] Template-assisted patterning MAPbI 3 Laser [42] Template-assisted patterning MAPbBr 3 Laser [43] Template-assisted patterning MAPbI 3 Laser [44] Template-assisted patterning PEA 2 PbBr 4 X-ray [34] Template-assisted patterning MAPbI 3 Solar cell [48] Template-assisted patterning MAPbI 3 Solar cell [45] Template-assisted patterning MAPbI 3 Solar cell [46] Template-assisted patterning MAPbI 3 Solar cell [47] Template Template-assisted patterning CsPbX 3 (X = Cl/Br, Br, Br/I) Fluorescent label [36] Template-assisted patterning FAPbI 3 Image sensor [54] Template-assisted patterning MAPbI 3 Image sensor [55] Template-assisted patterning CsPbBr 3 Photodetector [35] Template-assisted patterning MAPbX 3 (X = Br, I) LED, photodetector [56] Template-assisted patterning MAPbI 3 Field-effect transistor, Photodetector [57] Template-assisted patterning MAPbI 3 Terahertz device [37] Template-assisted patterning MAPbI 3 Thin film transistor [58] Template-assisted patterning CsPbBr 3 Electrochemical cell [38] Template-assisted patterning MAPbBr As mentioned earlier, the stability of perovskite patterning is limited. If the stability is low, the device is easily degraded by external conditions and the overall device characteristics (e.g., the light emission characteristics) deteriorate.…”

“…Many researchers have attempted to overcome this problem by fabricating a template for patterning perovskites via photolithography. [ 34–38 ] Research into patterning via additional templates is ongoing. A significant factor in template‐based patterning is determining whether the perovskites can be destroyed by contact with the template.…”