Опубликована: Янв. 1, 2025
Язык: Английский
Coordination Chemistry Reviews, Год журнала: 2023, Номер 500, С. 215542 - 215542
Опубликована: Ноя. 15, 2023
Язык: Английский
Процитировано
67
Advanced Materials, Год журнала: 2023, Номер 35(30)
Опубликована: Июнь 3, 2023
Semiconductor-based gas sensors hold great promise for effective carbon monoxide (CO) detection. However, boosting sensor response and selectivity remains a key priority in moist conditions. In this study, composite material, Pt quantum dots decorated MoS2 nanosheets (MoS2 /Pt), is developed as highly sensitive material CO detection when facilitated with visible light. The /Pt shows significantly improved (87.4%) impressive response/recovery kinetics (20 s/17 s), long-term stability (60 days), good to at high humidity (≈60%). It confirmed both experimentally theoretically that the surface lowers activation energy convert CO2 via free radicals induced by synergy of photochemical effects water vapor. As result, promotes selectivity, providing fundamental clues improve room-temperature semiconductor-based under extreme
Язык: Английский
Процитировано
30
Journal of Hazardous Materials, Год журнала: 2023, Номер 457, С. 131734 - 131734
Опубликована: Май 30, 2023
Язык: Английский
Процитировано
30
Energy Material Advances, Год журнала: 2023, Номер 4
Опубликована: Янв. 1, 2023
Double perovskites (DPs) with Cs 2 AgInCl 6 composition, as one of the lead-free perovskites, have been in spotlight owing to their intriguing optical properties, namely, self-trapped exciton (STE) emission and dopant-induced photoluminescence. However, current DPs still face challenge low photoluminescence efficiency cannot be applied practice. Herein, we synthesize Bi 3+ Eu codoped DPs, which displays enhanced STE ions characteristic emissions. Our results indicate that mainly substitute In sites can increase radiative recombination rate binding energy STEs, is discovered promote localization STEs by breaking inversion symmetry lattice. The existence decreases excitation (absorption) energy, provides a new absorption channel, increases transfer ions. Through adjusting concentrations, maximum quantum yield 80.1% obtained 6% 0.5% DPs. Finally, high-quality single-component white-light-emitting diodes based on 410-nm commercial ultraviolet chip are fabricated optimum color rendering index 89, optimal luminous 88.1 lm/W, half-lifetime 1,493 h. This work puts forward an effective lanthanide transition metals codoping strategy design white-light emitter, taking big step for application
Язык: Английский
Процитировано
26
Diamond and Related Materials, Год журнала: 2023, Номер 139, С. 110375 - 110375
Опубликована: Сен. 9, 2023
Язык: Английский
Процитировано
24
ACS Sensors, Год журнала: 2024, Номер 9(3), С. 1465 - 1474
Опубликована: Фев. 27, 2024
In the realm of NH3 gas-sensing applications, electrically conductive nature Ti3C2Tx MXene, adorned with surface terminations such as −O and −OH groups, renders it a compelling material. However, inherent challenges atmospheric instability selectivity in presence gas mixtures have prompted exploration innovative solutions. This work introduces strategic solution through deposition mixed-matrix membrane (MMM) composed poly(vinylidene fluoride) (PVDF) matrix zeolitic imidazolate framework-67 (ZIF-67) filler. composite acts selective filter, permitting passage specific gas, namely NH3. Leveraging hydrophobic chemically inert PVDF, MMM enhances stability by impeding water molecules from interacting MXene. Furthermore, ZIF-67 is to via acid–base interactions within zeolite group pore size. The sensor embedded filter exhibits modest 1.3% change sensing response 25 ppm compared without filter. result underscores filter's effectiveness conferring diffusivity, particularly at 35% relative humidity (RH) °C. Crucially, attributes PVDF impart heightened even amidst varying RH conditions. These results not only demonstrate effective detection but also highlight sensor's adaptability diverse environmental conditions, offering promising prospects for practical applications.
Язык: Английский
Процитировано
12
Sensors and Actuators B Chemical, Год журнала: 2024, Номер unknown, С. 135422 - 135422
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
11
Journal of Applied Physics, Год журнала: 2024, Номер 135(8)
Опубликована: Фев. 28, 2024
It is a novel-effective process for realizing high-efficiency sensing and continuous gas monitoring by introducing precious metals into metal–oxide–semiconductors (MOSs). In this study, Ag exploited to prepare surface functionalized SnO2 nanoparticles (NPs) innovative xAg@SnO2/CsPbBr3, activating catalyzing the reactions on semiconductors. The results show that metal NPs promote directional transport of carriers, thus improving performances. addition, xAg@SnO2/CsPbBr3 composites originated from Ag@SnO2 3-mercaptopropionic acid treated all-inorganic perovskite CsPbBr3 are constructed further accelerate electron transfer heterointerfaces, enabling efficient ethanolamine (EA) at room temperature. properties Ag@SnO2/CsPbBr3 various volatile organic compounds investigated. Compared with pure CsPbBr3, EA response as-prepared 2Ag@SnO2/CsPbBr3 obviously improved about sevenfold. response/recovery time greatly shortened, besides good stability. Another interesting result lower limit detection 44.43 ppb. work demonstrates modification facilitates adsorption/desorption rate response. Furthermore, catalytic activation noble synergistic interaction SnO2/CsPbBr3 nano-heterojunctions performances
Язык: Английский
Процитировано
10
Sensors and Actuators B Chemical, Год журнала: 2024, Номер 421, С. 136543 - 136543
Опубликована: Авг. 27, 2024
Язык: Английский
Процитировано
10
Sensors and Actuators B Chemical, Год журнала: 2023, Номер 398, С. 134710 - 134710
Опубликована: Окт. 1, 2023
Язык: Английский
Процитировано
17