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Bulk assembly of organic metal halide nanotubes.

ABSTRACT: The organic metal halide hybrids welcome a new member with a one-dimensional (1D) tubular structure. Herein we report the synthesis and characterization of a single crystalline bulk assembly of organic metal halide nanotubes, (C6H13N4)3Pb2Br7. In a metal halide nanotube, six face-sharing metal halide dimers (Pb2Br95-) connect at the corners to form rings that extend in one dimension, of which the inside and outside surfaces are coated with protonated hexamethylenetetramine (HMTA) cations (C6H13N4+). This unique 1D tubular structure possesses highly localized electronic states with strong quantum confinement, resulting in the formation of self-trapped excitons that give strongly Stokes shifted broadband yellowish-white emission with a photoluminescence quantum efficiency (PLQE) of ?7%. Having realized single crystalline bulk assemblies of two-dimensional (2D) wells, 1D wires, and now 1D tubes using organic metal halide hybrids, our work significantly advances the research on bulk assemblies of quantum-confined materials.

SUBMITTER: Lin H 

PROVIDER: S-EPMC5862099 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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The organic metal halide hybrids welcome a new member with a one-dimensional (1D) tubular structure. Herein we report the synthesis and characterization of a single crystalline bulk assembly of organic metal halide nanotubes, (C<sub>6</sub>H<sub>13</sub>N<sub>4</sub>)<sub>3</sub>Pb<sub>2</sub>Br<sub>7</sub>. In a metal halide nanotube, six face-sharing metal halide dimers (Pb<sub>2</sub>Br<sub>9</sub><sup>5-</sup>) connect at the corners to form rings that extend in one dimension, of which the i  ...[more]

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