High Open Circuit Voltage Solar Cells based on bright mixed-halide CsPbBrI2 Perovskite Nanocrystals Synthesized in Ambient Air Conditions
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/115585
Tipus de documentArticle
Data publicació2018-03-19
EditorACS
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
ProjecteMATERIALES NANOCOMPUESTOS INORGANICOS CON PROPIEDADES CONTROLADAS JERARQUICAMENTE COMO UNA NUEVA PLATAFORMA PARA APLICACIONES FOTOVOLTAICAS (MINECO-MAT2014-56210-R)
NANOPTO - Novel processing of colloidal nanocrystals for optoelectronic applications (EC-H2020-703018)
NAROBAND - Environmental friendly narrow band-gap colloidal nanocrystals for optoelectronic devices (EC-H2020-750600)
NANOPTO - Novel processing of colloidal nanocrystals for optoelectronic applications (EC-H2020-703018)
NAROBAND - Environmental friendly narrow band-gap colloidal nanocrystals for optoelectronic devices (EC-H2020-750600)
Abstract
Lead halide perovskite nanocrystals (NCs) are currently emerging as one of the most interesting solution processed semiconductors since they possess high photoluminescence quantum yield (PLQY), and colour tunability through anion exchange reactions or quantum confinement. Here, we show efficient solar cells based on mixed halide (CsPbBrI2) NCs obtained via anion exchange reactions in ambient conditions. We performed anion exchange reactions in concentrated NC solutions with I-, thus inducing a PL red-shift up to 676 nm, and obtaining a high PLQY in film (65%). Solar cell devices operating in the wavelength range 350-660 nm were fabricated in air with two different deposition methods. The solar cells display a photo-conversion efficiency of 5.3% and open circuit voltage (Voc) up to 1.31V, among the highest reported for perovskite based solar cells with band gap below 2eV, clearly demonstrating the potential of this material.
CitacióChristodoulou, S. [et al.]. High Open Circuit Voltage Solar Cells based on bright mixed-halide CsPbBrI2 Perovskite Nanocrystals Synthesized in Ambient Air Conditions. "THE JOURNAL OF CHEMICAL PHYSICS C", 19 Març 2018.
ISSN1932-7447
Versió de l'editorhttps://pubs.acs.org/doi/abs/10.1021/acs.jpcc.8b01264
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
acs.jpcc.8b01264.pdf | 1,239Mb | Visualitza/Obre |