Results 121 to 130 of about 124,796 (262)

Charge Storage and Dark Photocatalysis in Multivariate Ti‐Based Metal‐Organic Frameworks

Advanced Materials, EarlyView.
The mixed‐linker series of the titanium‐based metal–organic framework COK‐47 enables systematic tuning of photoresponsiveness and (dark) photocatalytic activity, deepening our understanding of structure‐property‐function relationships. Tailored metal‐to‐ligand charge transfer between the secondary building units (metal‐oxo layers and organic linkers ...
Julia E. Knapp, Bibhuti Bhusan Rath, Borja Ortín‐Rubio, Lukas Bauder, Kristina Gjorgjevikj, Saunak Das, Mariia Ferree, Frédéric Laquai, Lorenzo Tesi, Bettina Baumgartner, Simon Krause, Bettina V. Lotsch   +11 more
wiley   +1 more source

Anti-Stokes photoluminescence in ZnO microcrystal

, 2006
Low temperature (10 K) strong anti-Stokes photoluminescence (ASPL) of ZnO microcrystal excited by low power cw 532 nm laser is reported here. Energy upconversion of 1.1 eV is obtained in our experiment with no conventional nonlinear effect.
Du WM (Du Weimin), Li GH (Li Guohua), Su FH (Su Fuhai), Cao, WT, Peking Univ, Inst Modern Opt, Sch Phys, Beijing 100871, Peoples R China. E-mail: wd00@pku.edu.cn, Cao WT (Cao Weitao)   +4 more
core  

From Dark Photocatalysis to Photobattery‐Type Operation: A Re‐Functionalized Ti‐MOF for Solar Energy Storage

Advanced Materials, EarlyView.
ReCl47‐bpy is developed as a solar‐rechargeable, Re‐functionalized two‐dimensional metal–organic framework (MOF) for light‐driven charge storage and dark utilization. Re–bipyridine sites stabilize photoinduced electrons, enabling two complementary configurations: a MOF suspension for long‐lived charge retention and dark H2 evolution, and a spin‐coated ...
Shufan Wu, Chuyi Liu, Vasilis Petropoulos, Evgenia Dmitrieva, Giulio Cerullo, Erling Thyrhaug, Jürgen Hauer, Julien Warnan, Roland A. Fischer   +8 more
wiley   +1 more source

Coloring Tetrahedral Semiconductors: Synthesis and Photoluminescence Enhancement of Ternary II-III2-VI4 Colloidal Nanocrystals [PDF]

Ternary tetrahedral II-III2-VI4 semiconductors, where II is Zn or Cd, III In or Ga, and VI S, Se, or Te, are of interest in UV radiation detectors in medicine and space physics as well as CO2 photoreduction under visible light. We synthesize colloidal II-
Chen, Yunhua, Rossini, Aaron, Pavel, Md Riad Sarkar, Ochoa-Romero, Kerly, Guirado, Gonzalo, Santhiran, Anuluxan, Miller, Gordon, Vela, Javier, Gi, Eunbyeol   +8 more
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Disentangling Polaron Formation Pathways in Y6 by Probing Noninteracting and Interacting Chromophores via Transient Absorption Spectroscopy

Advanced Materials, EarlyView.
The central role of both electronically interacting and noninteracting chromophores in the photogeneration of charges has been unambiguously identified by ultrafast pump‐probe spectroscopy in thin films of the prototypical non‐fullerene acceptor Y6. Onsager‐like autoionization from higher‐energy excitations on Y6 aggregates is found to control polaron ...
Daniel Kroh, Xinyue Xu, Trevor A. Smith, Anna Köhler   +3 more
wiley   +1 more source

Dual Single Atoms Boosting Photocatalytic Upcycling of Raw Polyvinylidene Fluoride Plastic

Advanced Materials, EarlyView.
To resolve the catastrophic disaster of plastic contamination, the Cu‐Fe dual‐single‐atom‐loaded In2P3S9 NSs photocatalyst was prepared for direct conversion of raw polyvinylidene fluoride plastic into valuable chemicals. The dual‐single‐atom catalyst exhibits exceptional performance, with a total acetic/formic acid production of ∼1351.8 µmol g−1 ...
Amin Talebian‐Kiakalaieh, Shiying Ren, Wenzhong Ji, Yun Liu, Bingquan Xia, Jingrun Ran, Shi‐Zhang Qiao   +6 more
wiley   +1 more source

An overview on the photoluminescence emission in ZNO single crystal. A joint experimental and theoretical analysis

, 2012
The purpose of the present chapter is to join both the experimental and theoretical results to explain the different responses of photoluminescence (PL) emission at room temperature of ZnO powders by using different structural order-disorder effects ...
Macário, Leilane R. [UNESP], Pizani, Paulo S., Lima, Renata C., Andrés, J., Longo, Elson [UNESP], Sambrano, Júlio R. [UNESP], Longo, Valéria M. [UNESP], Varela, José A. [UNESP], Espinosa, José W. M.   +8 more
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Biomass DNA: An Emerging Building Block for Advanced Materials

Advanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

Photoluminescence enhancement of (NH4)(2)S-x passivated InP surface by rapid thermal annealing

, 1996
Photoluminescence enhancement of (NH4)(2)S-x passivated InP surface followed by rapid thermal annealing (RTA) has been investigated by using photoluminescence (PL), Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS), An increase
Xie XL, Cui YD, Chen WD CHINESE ACAD SCI INST SEMICOND POB 912 BEIJING 100083 PEOPLES R CHINA., Li XQ, Chen WD, Duan LH   +5 more
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Orthogonal Passivation of Polar Facets for Efficient InSb Quantum Dot SWIR Photodetectors

Advanced Materials, EarlyView.
An orthogonal passivation strategy is developed for indium antimonide (InSb) colloidal quantum dots (CQDs): a metal halide passivates Sb‐terminated surface sites, while thiol ligands passivate In‐terminated sites. This site‐specific passivation reduces trap density, prolonging carrier lifetime and increasing carrier mobility, and enables InSb CQD ...
Sile Hu, Yangning Zhang, Filip Dinic, Lizhou Fan, Benjamin Rehl, Oleksandr Voznyy, Sjoerd Hoogland, Edward H. Sargent   +7 more
wiley   +1 more source