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ACS MATERIALS LETTERS
Volume -, Issue -, Pages -Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmaterialslett.3c00112
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Multicolor luminescence in two-dimensional (2D) materials is challenging to achieve due to their atomic thickness and structural sensitivity. However, in this study, a 2D inorganic framework with wide bandgap and easily substitutable sites was designed to embed self-transforming luminescence centers, leading to multicolor emissions ranging from green to orange. These findings present a new paradigm for designing 2D multicolor luminescent materials and offer potential applications in various fields.
Multicolor luminescence is an attractive and emerging field for next-generation optoelectronic devices, including ultrathin displays, optical sensors, and wearable electronic devices. Currently, it is easy to achieve monochromatic emission, while the highly anticipated realization of multicolor luminescence in two-dimensional (2D) material is still blank. This is because the atomic thickness and structural sensitivity of 2D material make it extremely challenging to introduce multiple luminescent centers into it without structural collapse. Here, for the first time, we have designed a 2D inorganic framework with a wide bandgap and easily substitutable sites to embed self-transforming luminescence centers nondestructively and achieved multicolor emissions spanning from green to orange. These findings can provide a new paradigm for designing new 2D multicolor luminescent materials and extend a large margin of diverse applications.
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