Citation: QI Yu-Cong, SHEN Xiao-Quan, LIU Jia-Hao, XIAO Xuan-Zhong, SHEN Qun-Dong. Photo-Thermoelectric Generation in MoS2/Pyroelectric Polymer Nanocomposites for Collection of Near-Infrared Light Energy[J]. Chinese Journal of Inorganic Chemistry, ;2019, 35(12): 2364-2372. doi: 10.11862/CJIC.2019.268 shu

Photo-Thermoelectric Generation in MoS2/Pyroelectric Polymer Nanocomposites for Collection of Near-Infrared Light Energy

Department of Polymer Science and Engineering, Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, China

Corresponding author: SHEN Qun-Dong, qdshen@nju.edu.cn

Received Date: 3 August 2019
Revised Date: 23 September 2019

Figures(4)

We design a photo-thermoelectric nanogenerator (PTENG) based on a flexible film of molybdenum disulfide (MoS₂) dispersed in a pyroelectric polymer. The transition-metal dichalcogenide as thin-layered nanosheets can harvest the incident near-infrared (NIR) light and convert it into thermal energy. The pyroelectric polymer subsequently transduced the thermal energy collected by the inorganic nanosheets into electric energy. Under NIR irradiation, the PTENG can generate voltage and photocurrent instantly, and the output kept at high level for a long time. High thermoelectric conversion coefficient was obtained, which arised from efficient coupling between photothermal and pyroelectric effects. Theoretical simulation distinguished the contribution of MoS₂ in the polymer nanocomposite. MoS₂ significantly increased the temperature change rate in pyroelectric polymer films, leading to enhanced photoelectric response in the device.
- nanogenerators,
- molybdenum chalcogenides nanosheets,
- fluoropolymers,
- photothermal effect,
- pyroelectricity,
- flexible electronics
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