Fabrication of PbS thin films composed of highly (200)-oriented nano-/micro-rods in deep eutectic solvent |
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| Institution: | 1. State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People''s Republic of China;2. Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, People''s Republic of China;3. Jinan Institute of Quantum Technology, SAICT, Jinan 250101, People''s Republic of China;1. Department of Engineering Mechanics, Northwestern Polytechnical University, Xi''an 710072, PR China;2. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, Xi''an 710064, PR China;1. College of Applied Sciences, Beijing University of Technology, Beijing 100122, China;2. Department of Physics, Tsinghua University, Beijing 100084, China;1. Department of Physics, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, ROC;2. Physics Division, National Center for Theoretical Sciences, No. 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, ROC;3. TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada |
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| Abstract: | PbS thin films composed of highly (200)-oriented shuttle-like nano-/micro-rods were successfully fabricated on glass substrates by the environment friendly ionothermal method at 140 °C in deep eutectic solvent (DES). The as-prepared products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), ultraviolet-visible (UV–vis) and photoluminescence (PL) spectra, respectively. The possible mechanism of the oriented growth of PbS nano-/micro-rods was discussed. The PbS thin films composed of shuttle-like nano-/micro-rods exhibited a large absorbance property in the wavelength range of 350–1100 nm, and moreover, the PL spectrum had a broad emission band centered at 490 nm. The shuttle-like PbS nano-/micro-rods-based thin films might have potential application in solar cells. |
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| Keywords: | PbS thin films Oriented growth Ionothermal method Microstructure Optical properties |
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