Constructing Ultra-High Current Direct-Current Tribo-Photovoltaic Nanogenerators via Cu/Perovskite Schottky Junction.

Autor: Luo Y; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Ding Y; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Liu Y; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Xiongsong T; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Yang Z; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Zhang H; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Gao M; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Li H; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China., Dai G; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China., Yang J; Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.; Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China.; State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
Jazyk: angličtina
Zdroj: ACS nano [ACS Nano] 2024 Dec 24; Vol. 18 (51), pp. 34803-34814. Date of Electronic Publication: 2024 Dec 10.
DOI: 10.1021/acsnano.4c11758
Abstrakt: Perovskite-based direct-current triboelectric nanogenerators (DC-TENGs) leveraging the tribo-photovoltaic effect have garnered significant attention for their ability to simultaneously harvest mechanical and solar energy, effectively enhancing the output performance of DC-TENGs. Herein, we innovatively construct a rolling-mode Cu/ternary cation perovskite (FA 0.945 MA 0.025 Cs 0.03 Pb(I 0.975 Br 0.025 ) 3 ) Schottky junction DC-TENGs with ultrahigh current output and excellent operational stability. The Cu/perovskite Schottky junction ensures the formation of an internal electric field, promoting carrier separation and directional movement for a stable DC output. Under AM 1.5 G illumination, the DC-TENG achieves a short-circuit current ( I sc ) and current density of 408 μA and 27.2 A/m 2 , respectively, marking a 119 times increase as compared to dark conditions and the highest reported I sc for perovskite DC-TENGs. With over 30 min of operation, the current output remains stable. The DC-TENGs exhibit promising applications in temperature and humidity sensing and self-powered photodetection. Furthermore, by adjusting the light power density, the optimal internal output impedance of DC-TENGs can be tuned broadly from 0.9 to 132 kΩ, offering great potential for impedance matching in self-powered microelectronic components. This research provides insights into the development of multifunctional DC-TENG devices with coupled mechanical and solar energy, expanding the application scope of perovskite materials and devices.
Databáze: MEDLINE
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