TY - JOUR
T1 - Polymer-Enhanced Stability of Inorganic Perovskite Nanocrystals and Their Application in Color Conversion LEDs
AU - Meyns, Michaela
AU - Perálvarez, Mariano
AU - Heuer-Jungemann, Amelie
AU - Hertog, Wim
AU - Ibáñez, Maria
AU - Nafria, Raquel
AU - Genç, Aziz
AU - Arbiol, Jordi
AU - Kovalenko, Maksym V.
AU - Carreras, Josep
AU - Cabot, Andreu
AU - Kanaras, Antonios G.
PY - 2016/8/3
Y1 - 2016/8/3
N2 - © 2016 American Chemical Society. Cesium lead halide (CsPbX3, X = Cl, Br, I) nanocrystals (NCs) offer exceptional optical properties for several potential applications but their implementation is hindered by a low chemical and structural stability and limited processability. In the present work, we developed a new method to efficiently coat CsPbX3 NCs, which resulted in their increased chemical and optical stability as well as processability. The method is based on the incorporation of poly(maleic anhydride-alt-1-octadecene) (PMA) into the synthesis of the perovskite NCs. The presence of PMA in the ligand shell stabilizes the NCs by tightening the ligand binding, limiting in this way the NC surface interaction with the surrounding media. We further show that these NCs can be embedded in self-standing silicone/glass plates as down-conversion filters for the fabrication of monochromatic green and white light emitting diodes (LEDs) with narrow bandwidths and appealing color characteristics.
AB - © 2016 American Chemical Society. Cesium lead halide (CsPbX3, X = Cl, Br, I) nanocrystals (NCs) offer exceptional optical properties for several potential applications but their implementation is hindered by a low chemical and structural stability and limited processability. In the present work, we developed a new method to efficiently coat CsPbX3 NCs, which resulted in their increased chemical and optical stability as well as processability. The method is based on the incorporation of poly(maleic anhydride-alt-1-octadecene) (PMA) into the synthesis of the perovskite NCs. The presence of PMA in the ligand shell stabilizes the NCs by tightening the ligand binding, limiting in this way the NC surface interaction with the surrounding media. We further show that these NCs can be embedded in self-standing silicone/glass plates as down-conversion filters for the fabrication of monochromatic green and white light emitting diodes (LEDs) with narrow bandwidths and appealing color characteristics.
KW - CsPbBr 3
KW - LED
KW - color conversion
KW - inorganic perovskite nanocrystals
KW - poly(maleic anhydride-alt-1-octadecene)
U2 - https://doi.org/10.1021/acsami.6b02529
DO - https://doi.org/10.1021/acsami.6b02529
M3 - Article
VL - 8
SP - 19579
EP - 19586
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 30
ER -