Journal
INORGANIC CHEMISTRY
Volume 59, Issue 7, Pages 4349-4356Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.9b03277
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Funding
- National Key Research and Development Program of China [2018YFB0703500]
- National Natural Science Foundation of China [51572193]
- Natural Science Foundation of Tianjin [17JCYBJC17600]
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Low-dimensional lead-free organic-inorganic hybrid perovskites have gained increasing attention as having low toxicity, ease of processing, and good optoelectronic properties. Seeking for lead-free and narrow band gap organic-inorganic hybrid perovskites are of great importance for the development and application of photoelectric materials. Here, we reported a Sb-based organic- inorganic hybrid perovskite (MV)[SbI3Cl2], which has one-dimensional inorganic frameworks of the I-sharing double octahedra. (MV)[SbI3Cl2] shows a narrow direct band gap of 1.5 eV, and displays obvious photoresponse for the 532 nm light with rapid response speed of t(rise) = 0.69 s, t(decay) 0.28 s. With an illumination power of 5 mW and a 50 V bias, the responsivities (R) and external quantum efficiency (EQE) for (MV) [SbI3Cl2] photodetector under 532 nm laser are 29.75 mA/W and 6.69% respectively. This Sb-based halide double perovskite material will provide an alternative material for photodetector devices.
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