Journal
NANOTECHNOLOGY
Volume 28, Issue 25, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aa6d96
Keywords
RbPbI3; colloidal synthesis; photoresponse
Funding
- DGIST R&D Program of the Ministry of Science [16-BD-01]
- Ministry of Education (MOE)
- National Research Foundation of Korea (NRF) through the Human Resource Training Project for Regional Innovation [2015035858]
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Recently, metal halide perovskite nanocrystals have demonstrated outstanding properties in various optoelectronic applications. Cesium lead halides (CsPbX3) are the most studied perovskites in nanoscale dimensions. However, halide perovskite nanocrystals with other cations have rarely been reported. It is important to develop new perovskite compositions to further expand their application in various fields. In this paper, we first report the synthesis of colloidal rubidium lead iodide (RbPbI3) nanowires (NWs). RbPbI3 NWs have an orthorhombic crystal structure and are single-crystalline in nature. The diameter of the NWs is around 32 nm with lengths up to several tens of micrometers. RbPbI3 NWs absorb strongly below 450 nm. RbPbI3 devices exhibited good photoresponsive behavior, suggesting a potential use in optoelectronics.
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