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STAR Protocols · 2022 · IF 0

Protocol for doping of an Sn-based two-dimensional perovskite semiconductor by incorporating SnI4 for field-effect transistors and thermoelectric devices

Yu Liu,Ping-An Chen,Xincan Qiu,Jing Guo,Jiangnan Xia,Huan Wei,Haihong Xie,Shijin Hou,Mai He,Xiao Wang,Zebing Zeng,Lang Jiang,Lei Liao,Yuanyuan Hu

Summary Doping is an important technique for semiconductor materials, yet effective and controllable doping of organic-inorganic halide perovskites is still a challenge. Here, we present a protocol to dope 2D perovskite (PEA) 2 SnI 4 by incorporating SnI 4 in the precursor solutions. We detail steps for preparation of field-effect transistors (FETs) and thermoelectric devices (TEs) based on SnI 4 -doped (PEA) 2 SnI 4 films. We further describe characterization via conductivity measurement using the four-point probe method, FETs performance, and TEs performance measurements. For complete details on the use and execution of this protocol, please refer to Liu et al. (2022). 1

研究领域: 材料科学 · 半导体物理

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JOURNAL OF ALLOYS AND COMPOUNDS · 2023 · IF 6.2

Improved interfacial compatibility and ionic conductivity of SnI4 Co-doping Li-argyrodite sulfide electrolyte for all-solid-state lithium batteries

Zhikai Huang,Zhihao Yan,Dingding Zhu,Xuedong Zhang,Shuaiyu He,Jianyu Huang,Guobao Xu

Despite lithium-argyrodite electrolytes have attracted great attention due to the high ionic conductivity and relatively lower cost, their applications are hindered by the inferior air stability and poor Li compatibility. Herein, we report a Sn/I co-doping the Li 6 PS 5 Cl strategy to overcome above obstacles. The optimized LPSC-0.05SnI 4 exhibits high ionic conductivity of 3.9 × 10 −3 S cm −1 at room temperature, and improved air stability. More importantly, an in situ formed LiI-rich interface on the lithium anode is introduced through the LPSC-0.05SnI 4 . As a result, the Li/LPSC-0.05SnI 4 /Li symmetric batteries deliver high critical current density of 1.45 mA cm −2 and a remarkable steady Li plating/stripping performance over 6000 h at 0.1 mA cm −2 . The assembled LNO@NMC811/LPSC-0.05SnI 4 /Li all-solid-state batteries display prominent capacity and cycling stability. This work provides a practical and effective method for designing versatile and high-performance sulfide-based solid electrolytes .

研究领域: 材料科学 · 能源存储技术

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Protocol for doping of an Sn-based two-dimensional perovskite semiconductor by incorporating SnI4 for field-effect transistors and thermoelectric devices

Improved interfacial compatibility and ionic conductivity of SnI4 Co-doping Li-argyrodite sulfide electrolyte for all-solid-state lithium batteries