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Issue 10, 2018
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Tailored fabrication of a prospective acousto–optic crystal TiTe3O8 endowed with high performance

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Abstract

A prospective acousto–optic (A/O) crystal TiTe3O8 endowed with superior thermal features and appreciable transparency is rationally developed by a tailored approach, namely TeO2 (a material possessing outstanding A/O performance) in synergistic combination with TiO2. Using the selected Li2CO3–TeO2 fluxes, a high-quality and large-dimension single crystal of cubic TiTe3O8 is extracted through a high temperature top-seeded solution growth (TSSG) technique. Remarkably, TiTe3O8 contains a d0 transition metal cation, Ti4+, which is typically susceptible to second-order Jahn–Teller (SOJT) distortions, but surprisingly in a locally undistorted octahedral geometry. The high symmetry of TiTe3O8 makes it ideal for crystal processing and A/O device design. Notably, the tellurite crystal TiTe3O8 displaying an adequate A/O figure of merit is originally utilized to fabricate an A/O modulator that exhibits a high diffraction efficiency of 77%, which is competitive with the value reported for the TeO2 crystal. Such a tailored design enriches the family of A/O materials and opens up a viable route toward exploiting controlled fabrication of potential A/O materials.

Graphical abstract: Tailored fabrication of a prospective acousto–optic crystal TiTe3O8 endowed with high performance

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Publication details

The article was received on 23 Nov 2017, accepted on 17 Jan 2018 and first published on 17 Jan 2018


Article type: Paper
DOI: 10.1039/C7TC05382G
Citation: J. Mater. Chem. C, 2018,6, 2443-2451
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    Tailored fabrication of a prospective acousto–optic crystal TiTe3O8 endowed with high performance

    W. Lu, Z. Gao, Q. Wu, X. Tian, Y. Sun, Y. Liu and X. Tao, J. Mater. Chem. C, 2018, 6, 2443
    DOI: 10.1039/C7TC05382G

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