Archivio Istituzionale della RicercaWe demonstrate efficient, stable, and fully RoHS-compliant near-infrared (NIR) light-emitting diodes (LEDs) based on InAs/ZnSe quantum dots (QDs) synthesized by employing a commercially available amino-As precursor. They have a record external quantum efficiency of 5.5% at 947 nm and an operational lifetime of ∼32 h before reaching 50% of their initial luminance. Our findings offer a new solution for developing RoHS-compliant light-emitting technologies based on Pb-free colloidal QDs.
Near-Infrared Light-Emitting Diodes Based on RoHS-Compliant InAs/ZnSe Colloidal Quantum Dots / De Franco, Manuela; Zhu, Dongxu; Asaithambi, Aswin; Prato, Mirko; Charalampous, Eleftheria; Christodoulou, Sotirios; Kriegel, Ilka; De Trizio, Luca; Manna, Liberato; Bahmani Jalali, Houman; Di Stasio, Francesco. - In: ACS ENERGY LETTERS. - ISSN 2380-8195. - 7:11(2022), pp. 3788-3790. [10.1021/acsenergylett.2c02070]
Near-Infrared Light-Emitting Diodes Based on RoHS-Compliant InAs/ZnSe Colloidal Quantum Dots
Kriegel, Ilka;Di Stasio, Francesco
2022
Abstract
We demonstrate efficient, stable, and fully RoHS-compliant near-infrared (NIR) light-emitting diodes (LEDs) based on InAs/ZnSe quantum dots (QDs) synthesized by employing a commercially available amino-As precursor. They have a record external quantum efficiency of 5.5% at 947 nm and an operational lifetime of ∼32 h before reaching 50% of their initial luminance. Our findings offer a new solution for developing RoHS-compliant light-emitting technologies based on Pb-free colloidal QDs.
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https://hdl.handle.net/11583/2996472