Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Lead halide perovskite quantum dots, also known as perovskite nanocrystals, are considered one of the most promising photovoltaic materials for solar cells due to their outstanding optoelectronic properties and simple preparation techniques. The key factors restricting the photoelectric conversion efficiency of solar cell systems are the separation and transmission performances of charge carriers. Here, femtosecond time-resolved ultrafast spectroscopy was used to measure the interfacial charge transfer dynamics of different sizes of CsPbBr assembled with TiO. The effect of perovskite size on the charge transfer is discussed. According to our experimental data analysis, the time constants of the interfacial electron transfer and charge recombination of the assembled systems of CsPbBr and titanium dioxide become larger when the size of the CsPbBr nanocrystals increases. We discuss the physical mechanism by which the size of perovskites affects the rate of charge transfer in detail. We expect that our experimental results provide experimental support for the application of novel quantum dots for solar cell materials.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12300320 | PMC |
| http://dx.doi.org/10.3390/nano15141065 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Investigation into the Regulation of Ag NPs/ZnO NRs/GaN Heterostructure SERS Substrate via Pyroelectric Effects.
J Phys Chem Lett
September 2025
Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P.R. China.
Heterostructures have emerged as promising contenders for surface-enhanced Raman scattering (SERS) applications. Nevertheless, the construction of a composite SERS substrate with well-matched energy levels persists as a challenge, primarily due to the restricted selection of SERS-active materials. In this study, we successfully synthesized a Ag nanoparticles (NPs)/ZnO nanorods (NRs)/GaN heterojunction featuring type II staggered energy bands, which provides an outstanding platform for efficient SERS detection.
View Article and Find Full Text PDFConstruction of melem/BiVO/g-CN photocatalyst with a conjugated S-scheme charge transfer pathway for boosting photocatalytic activity under LED light irradiation.
Environ Res
September 2025
Center for High Technology Development, Nguyen Tat Thanh University, Ho Chi Minh City Hi-Tech Park, Ho Chi Minh City, Vietnam; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam. Electronic address:
The development of novel multijunction heterostructure photocatalysts is critical for the efficient degradation of organic pollutants, attributed to their ability to enhance the separation of photogenerated electron-hole pairs. In our study, a ternary composite, melem/BiVO/g-CN (BVO/CNMH), was synthesized via an acid-soaking method followed by calcination, using g-CN as a sacrificial precursor in the presence of BiVO. This approach yielded a porous, interconnected architecture in BVO/CNMH.
View Article and Find Full Text PDFSimultaneous removal of NO and propane by solid electrolyte cells with LaPrBaNiO bifunctional electrodes.
J Hazard Mater
September 2025
School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Environmental Chemistry and Low Carbon Technology, Zhengzhou 450001, China. Electronic address:
Solid electrolyte cell is a novel gas purification approach, which has unique superiority in simultaneous nitrogen oxides (NO) and volatile organic compounds (VOCs) removal. The development of effective electrode materials and the comprehensive understanding of reaction mechanisms are essential to advancing this technology. In this study, LaPrBaNiO (x = 0, 0.
View Article and Find Full Text PDFZnO dual-functional template-assisted construction of hierarchical porous hard carbon anode for high-rate sodium storage.
J Colloid Interface Sci
September 2025
College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping, 102249, China.. Electronic address:
Hard carbon has emerged as the most widely studied and commercialized anode material for sodium-ion batteries (SIBs). However, improving the charge transfer kinetics within the plateau potential range of the hard carbon anode is crucial for the development of fast-charging SIBs. In this study, we prepared a novel composite material, ZAPA-1300, by uniformly mixing starch, asphalt, and zinc oxide (ZnO), followed by a two-step treatment process.
View Article and Find Full Text PDFFabrication of a Mo-based catalyst with high DDS pathway selectivity for hydrodesulfurization of dibenzothiophene.
J Colloid Interface Sci
September 2025
State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China; Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), Qingdao 266580, PR China. Electronic address:
With the trend of heavy and inferior crude oil, the design of hydrodesulfurization (HDS) catalysts with excellent activity and high active metal utilization is an inevitable trend for the upgrading of refining technology. In this study, a highly dispersed Mo catalyst confined within nitrogen-doped porous carbon (xMo@NC) was prepared using an in situ encapsulation-pyrolysis approach and used in the HDS reaction of dibenzothiophene (DBT). The methods of XRD, HRTEM, HAADF-STEM, N physisorption, FT-IR, Raman, and XPS were used to carry out thorough microstructural characterization.
View Article and Find Full Text PDF