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Ruddlesden–Popper Perovskites: Spontaneous Formation of Nanocrystals in Amorphous Matrix: Alternative Pathway to Bright Emission in Quasi‐2D Perovskites (Advanced Optical Materials 19/2019)
Author(s) -
Liu Fangzhou,
Chan Christopher Chang Sing,
Ma Chao,
Tam Ho Won,
Leung Tik Lun,
Lin Jingyang,
Djurišić Aleksandra B.,
Wong Kam Sing,
Popović Jasminka,
Ng Alan Man Ching,
Chan Wai Kin,
Chen Wei,
He Zhubing,
Adesina Ayotunde Emmanuel,
Foo Yishu,
Zapien Juan Antonio
Publication year - 2019
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201970074
Subject(s) - perovskite (structure) , nanocrystal , materials science , passivation , amorphous solid , matrix (chemical analysis) , phase (matter) , nanotechnology , chemical engineering , crystallography , composite material , chemistry , organic chemistry , layer (electronics) , engineering
The formation of nanocrystals in quasi‐2D Ruddlesden–Popper perovskite can be spontaneously induced by appropriately timed anti‐solvent treatment, as reported by Aleksandra B. Djurišić, Kam Sing Wong, and co‐workers in article number 1900269. Only nanocrystals with n = 4 phase are detected, different from commonly obtained mixtures of different phases. The formation of nanocrystals in a disordered matrix results in a significant enhancement of the light emission due to defect passivation.