Giant and reversible photoluminescence modulation based on in situ electric-field-controlled antiferroelectric–ferroelectric phase transition. Issue 40 (8th September 2022)

• Record Type: Journal Article
• Authors: Zhang, Yu; Huang, Ying; Xue, Wuming; Wu, Xiao; Zhao, Chunlin; Lin, Tengfei; Lin, Cong; Gao, Min
• Is Part Of: Journal of materials chemistry. Volume 10:Issue 40(2022)
• Page Start: 14946
• Page End: 14954
• Publication Date: 2022-09-08
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d2tc03018g
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : The electric-field-controlled ( E -controlled) photoluminescence (PL) effect in inorganic materials has aroused great interest because of its potential applications in displays, optical communication, and data storage. Abstract : The electric-field-controlled ( E -controlled) photoluminescence (PL) effect in inorganic materials has aroused great interest because of its potential applications in displays, optical communication, and data storage. However, current ferroelectric-type PL materials which show either irreversible or reversible but insufficient PL tunability encounter certain limitations. Herein, a strategy of utilizing the E -induced antiferroelectric–ferroelectric (AFE–FE) phase transition is proposed to achieve a giant and reversible modulation of the PL effect. The feasibility of the strategy is evidenced in Er 3+ doped Pb0.96 La0.04 Zr0.9 Ti0.1 O3 (PLZT-Er) AFE ceramics, where an alternate E of 80 kV cm −1 can reversibly trigger an ∼30% PL enhancement. Moreover, six nonlinear change sections and two distinguishable PL states are revealed under a cycle of E . This tunability is attributed to the E -induced electric dipole flips and corresponding symmetry changes during the AFE–FE phase transition. Such in situ E -dependent PL modulation suggests a new type of optical–electric coupling mechanism that is fundamentally based on symmetry, which opens up a new approach for multifunctional optoelectronic devices.