Avui, dijous 7 de maig, el Dipòsit Digital no estarà operatiu per tasques d'actualització. Disculpeu les molèsties.
Hoy, jueves 7 de mayo, el Dipòsit Digital no estará operativo debido a tareas de actualización. Disculpen las molestias.
Today, Thursday, May 7th, the Digital Repository will be unavailable due to a system update.

Fitxers

719807.pdf (2.41 MB)

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2022-01-27

Llicència de publicació

cc-by-nc-nd (c) Vescio, Giovanni et al, 2022
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/191621

High Quality Inkjet Printed‐Emissive Nanocrystalline Perovskite CsPbBr3 Layers for Color Conversion Layer and LEDs Applications

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

https://doi.org/10.1002/admt.202101525

Resum

Metal halide perovskites (MHPs) have shown outstanding optical emissive properties and can be employed in several optoelectronics devices. In contrast with materials of well-established technologies, which are prone to degradation or require expensive processes, MHPs can be obtained by solution processing methods and increase stability. Inkjet printing is proposed as an industrial friendly technique to deposit MHPs. The inks have been developed from colloidal CsPbBr3 nanocrystals and printing procedures that allow the deposition of thin layers with intense green emission. High emissive printed layers are assured by carrying out thermal annealing in vacuum oven, which is demonstrated to promote compact layers with low roughness, corroborated by SEM and AFM. XRD measurements show CsPbBr3 crystalline layers with cubic symmetry and XPS provides insight into the stoichiometric composition and local bonding. Optical properties of inkjet-printed CsPbBr3 films have been analyzed by UV-vis absorbance and photoluminescence (PL), to extract the bandgap energy and photoluminescence quantum yield (PLQY). CsPbBr3 printed layers emit at 524 nm with a narrow emission (FWHM ≈ 15 nm), exhibiting a PLQY up to 20%. These results enabled the large-scale fabrication by inkjet printing of CsPbBr3 color conversion layers (CCLs) and pave the way for flexible LEDs.

Matèries

Halurs, Díodes electroluminescents, Litografia

Matèries (anglès)

Halides, Light emitting diodes, Lithography

Citació

Col·leccions

Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

Citació

VESCIO, Giovanni, et al. High Quality Inkjet Printed‐Emissive Nanocrystalline Perovskite CsPbBr3 Layers for Color Conversion Layer and LEDs Applications. Advanced Materials Technologies. 2022. Vol. 7, núm. 7, pàgs. 1-11. ISSN 2365-709X. [consulta: 8 de maig de 2026]. Disponible a: https://hdl.handle.net/2445/191621

Exportar metadades

JSON - METS

Compartir registre