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Highly emissive zero-dimensional antimony halide for anti-counterfeiting and confidential information encryption-decryption.
- Source :
-
Chemical Engineering Journal . Mar2022:Part 3, Vol. 431, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- One new bulk lead-free 0D antimony halide of [DPA] 3 SbCl 6 was designed as greenish-yellow light emitter with near-unity PLQY. Thorugh elaborate fabrication toward [DPA] 3 SbCl 6 , multiple reversible photoluminescence on/off switch was achieved with important potential in anti-counterfeiting and confidential information encryption-decryption technologies, which opens a new way to design perovskite materials for new optoelectronic applications. [Display omitted] • New 0D antimony halide as efficient green emitter with remarkable near-unity PLQY. • Applied as luminescent ink against high-resolution anti-counterfeiting application. • Fast information encryption decryption achieved through solid/liquid dual mode. • Multiple reversible PL on/off switches enhancement information encryption decryption. Storage and protection of confidential information is an increasing challenge for global digital economy, which stimulates the never-ending pursuit of high-security technology to prevent information forgery and leakage. Herein, we develop a novel approach to realize controllable information encryption-decryption based on reversible photoluminescence (PL) on/off switch in 0D hybrid antimony halide. A new 0D [DPA] 3 SbCl 6 (DPA = dipropylamine) was designed as broadband green light emitter with near-unity photoluminescence quantum yield. Benefiting from invisible and non-luminescent superiorities of SbCl 3 , information encrypted by SbCl 3 pattern can′t be directly decoded upon common light excitations. Under the trigger of [DPA]Cl salt, superfast transition from SbCl 3 to [DPA] 3 SbCl 6 gives rise to highly efficient emission and thus effective information decoding. Subsequently, through methanol impregnation and desolvation strategy, luminescence of [DPA] 3 SbCl 6 can be easily quenched and recovered resulting in reversible PL on/off switching. The multiple and controllable PL emission conversion provides a dual-mode confidential information encryption-decryption technology. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 431
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 154538262
- Full Text :
- https://doi.org/10.1016/j.cej.2021.134336