Abstract:Transition-metal copper acts as a potential alternative for toxicity lead in exploring hypotoxicity organometal halide semiconductors (OHSs), due to its cost-effectiveness, low toxicity, earth-abundance, and near-infrared absorption. However, the known Cu-OHSs not only are limited but also exhibit unsatisfactory optoelectronic performances. Herein, we report a novel Cu-OHS (3-methylbenzo[d]thiazol-3-ium) 2 Cu 3 I 5 (denoted as Mebti-Cu 3 I 5 ) constructed by one-dimensional (Cu 3 I 5 ) 2− anionic chains charge… Show more
“…S9†). The band gap value is comparable with those of MA 2 CuCl 4 (2.48 eV), 50 (3-methylbenzo[ d ]thiazol-3-ium) 2 Cu 3 I 5 (2.40 eV) 28 and the lead-based semiconductor MAPbBr 3 (2.3 eV) 51 but severely smaller than the inorganic copper halide Cs 3 Cu 2 I 5 (3.8 eV), 52 indicating the strong UV and visible light absorption ability for BCS-CuI .…”
Section: Resultssupporting
confidence: 65%
“…High structural dimensionality endowed by intermolecular non-covalent interactions could enable HCHs with continuous carrier transportation, which benefits their photoelectrical performance. 25–28 Although active efforts have been made to construct HCH supramolecular frameworks via intermolecular non-covalent interactions, they are mostly based on trial and error approaches instead of a targeted structural design due to that the precise control of non-covalent interactions is challenging. Halogen bonding (XB) is an attractive non-covalent interaction between a positive electrostatic region associated with a halogen atom and an electron donor such as Lewis base or anion.…”
Copper has become a favored Pb-free candidate in the exploration of metal halide photoelectric material, however the known hybrid copper halides (HCHs) suffer from wide band gaps, low absorption coefficients...
“…S9†). The band gap value is comparable with those of MA 2 CuCl 4 (2.48 eV), 50 (3-methylbenzo[ d ]thiazol-3-ium) 2 Cu 3 I 5 (2.40 eV) 28 and the lead-based semiconductor MAPbBr 3 (2.3 eV) 51 but severely smaller than the inorganic copper halide Cs 3 Cu 2 I 5 (3.8 eV), 52 indicating the strong UV and visible light absorption ability for BCS-CuI .…”
Section: Resultssupporting
confidence: 65%
“…High structural dimensionality endowed by intermolecular non-covalent interactions could enable HCHs with continuous carrier transportation, which benefits their photoelectrical performance. 25–28 Although active efforts have been made to construct HCH supramolecular frameworks via intermolecular non-covalent interactions, they are mostly based on trial and error approaches instead of a targeted structural design due to that the precise control of non-covalent interactions is challenging. Halogen bonding (XB) is an attractive non-covalent interaction between a positive electrostatic region associated with a halogen atom and an electron donor such as Lewis base or anion.…”
Copper has become a favored Pb-free candidate in the exploration of metal halide photoelectric material, however the known hybrid copper halides (HCHs) suffer from wide band gaps, low absorption coefficients...
“…S11, ESI†) 27 and the previously reported Cu-based photoconductors K 2 Cu 2 Cl 6 (∼2) 28 and (Mebti) 2 Cu 3 I 5 (1.94). 24 The transient photocurrent response of the photoconductive device shows good repeatability of photocurrent under photo-switching conditions (Fig. S12, ESI†).…”
mentioning
confidence: 96%
“…This thermal stability was much higher than those of Cu(SPh–OH) and Cu(SPh–COOH), which also possessed 2D layer structures but showed onset temperatures of approximately 280 °C 12 and 1D material (Mebti) 2 Cu 3 I 5 (228 °C). 24 The finely ground polycrystalline powders were irradiated by 254 nm UV light and exposed to a moisture environment with 75% relative humidity (RH) for as long as 16 days. PXRD, transmission electron microscopy, scanning electron microscopy and infrared spectra measurements confirmed the light and moisture stabilities of [Cu(CMP)] n (Fig.…”
We report the thinnest copper sulfur atomic monolayer in an organic copper chalcogenide [Cu(CMP)]n (CMP = 5-chloro-2-mercaptopyridine). The layer features a new type of copper sulfur structure woven by both...
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