1. Low ligand field strength ion (I−) mediated 1D inorganic material MoI3: Synthesis and application to photo-detectors.
- Author
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Choi, Kyung Hwan, Oh, Seungbae, Chae, Sudong, Jeong, Byung Joo, Kim, Bum Jun, Jeon, Jiho, Lee, Sang Hoon, Yoon, Sang Ok, Woo, Chaeheon, Dong, Xue, Ghulam, Asghar, Lim, Changmo, Liu, Zhixiang, Wang, Cong, Junaid, Ali, Lee, Jae-Hyun, Yu, Hak Ki, and Choi, Jae-Young
- Subjects
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BAND gaps , *CHEMICAL peel , *TEMPERATURE control , *ELECTRIC conductivity , *INORGANIC synthesis , *MOLYBDENUM compounds - Abstract
A new type of 1D inorganic material, MoI 3 , which can be separated into individual 1D chains, was synthesized through a vapor transport reaction between molybdenum and iodine. High-purity and centimeter-scale large MoI 3 crystals were obtained by controlling the growth temperature and the stoichiometric ratio between molybdenum and iodine. Their semiconductor characteristics were confirmed by measuring the electrical conductivity as a function of temperature (conductivity increased with increased temperature across the range −70 to 30 °C). Furthermore, it was confirmed that MoI 3 with a 1.27 eV band gap can be separated to a few nanometer scale through mechanical and chemical exfoliation methods and can be used as a photodetector in the near IR (less than 1000 nm)-to-visible light region. This novel 1D material is expected to play an important role in the development of additional low-dimensional materials and in advanced nano-optoelectronic devices. • Synthesis of 1D inorganic material MoI 3 via chemical vapor transport (CVT) method. • Experimental estimation of band gap (∼ 1.27 eV) and application to photodetector. • Bulk to few nanometer scale separations of MoI 3 chains using mechanical and chemical exfoliation. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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