Atomic Analysis and Dynamics Lab

https://onlinelibrary.wiley.com/doi/10.1002/aelm.202201054

In Situ/Operando Studies for Reduced Eletromigration in Ag Nanowires with Stacking Faults The electromigration behaviors of Ag nanowires (NWs) is discussed under biasing via in situ TEM observations, Ag NWs obtained from galvanic replacement reaction may possess the stacking faults. As th...

2022 Fall Semester Course at NTHU " A Study of Indian Society " is now open to NTHU Students and Non-NTHU Students!!!
Everyone is welcome to take the ever-first English-medium course from International Intercollegiate MS Program Division of India Studies, NTHU. More information on the course: shorturl.at/ekpr4

2022清大秋季課程「印度專題研究」開放選課了，歡迎清大與校外的同學選修!
「印度專題研究」是清大跨院國際碩士學位學程印度研究組的第一門以英文進行的主修課，更多課程資訊： shorturl.at/ekpr4

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https://pubs.acs.org/doi/full/10.1021/acsami.2c07817

Enhanced Piezocatalytic Activity in Bi1/2Na1/2TiO3 for Water Splitting by Oxygen Vacancy Engineering Piezoelectric materials have demonstrated applicability in clean energy production and environmental wastewater remediation through their ability to initiate a number of catalytic reactions. In this study, we used a conventional sol–gel method to synthesize lead-free rhombohedral R3c bismuth sodiu...

Epitaxial TiN/GaN Heterostructure for Efficient Photonic Energy Harvesting Plasmon-mediated hot carrier injection using the metal–semiconductor Schottky diode structure has been proposed for optical sensing and solar energy harvesting. But the low conversion efficiency and limited spectral range are the current concerns. Wide-bandgap (3.4 eV) gallium nitride (GaN) has be...

Improved Mass-Transfer Enhances Photo-Driven Dye Degradation and H2 Evolution over a Few-Layer WS2/ZnO Heterostructure In this study, we observed the enhanced photocatalytic activity of a few-layer WS2/ZnO (WZ) heterostructure toward dye degradation and H2 production. The few-layer WS2 acted as a co-catalyst that separated photogenerated electron/hole pairs and provided active sites for reactions, leading to the rat...

https://pubs.acs.org/doi/10.1021/acsomega.1c05756

Improved Mass-Transfer Enhances Photo-Driven Dye Degradation and H2 Evolution over a Few-Layer WS2/ZnO Heterostructure In this study, we observed the enhanced photocatalytic activity of a few-layer WS2/ZnO (WZ) heterostructure toward dye degradation and H2 production. The few-layer WS2 acted as a co-catalyst that separated photogenerated electron/hole pairs and provided active sites for reactions, leading to the rat...

https://www.sciencedirect.com/science/article/pii/S2211285521011162?via%3Dihub

Induction of a piezo-potential improves photocatalytic hydrogen production over ZnO/ZnS/MoS2 Heterostructures In this study, we applied a piezo-potential to ZnO/ZnS/MoS2 heterostructures through ultrasonication to improve the separation of photoexcited electro…

https://pubs.rsc.org/en/content/articlehtml/2021/cc/d1cc03300j

In situ TEM observations of void movement in Ag nanowires affecting the electrical properties under biasing In this study we investigated the electromigration (EM) of metal electrodes and the effect of stacking faults on the EM in Ag nanowires (NWs). We used the galvanic replacement method to synthesize these NWs by controlling the concentration of silver nitrate. In situ transmission electron microscopy....

https://www.sciencedirect.com/science/article/pii/S2238785421006712

High-temperature Shape Memory Properties of Cu15Ni35Ti25Hf12.5Zr12.5 High-entropy Alloy The major challenges hindering the application of high-temperature shape memory alloys are their decreased mechanical strength and thermal stability. …

https://www.sciencedirect.com/science/article/pii/S2211285521004894

In situ formed robust submicron-sized nanocrystalline aggregates enable highly-reversible potassium ion storage We report an electrode architecture made of submicron-sized nanocrystalline aggregates obtained in situ from ball-milled BiSb crystals during the pota…

https://onlinelibrary.wiley.com/share/BKRUBYSAF5REFR6RNZVT?target=10.1002/admi.202100422

In‐Situ Observation of the Formation of NiSi/Ni2Si Heterojunction in SiGe Nanowire with Al2O3 Diffusion Barrier Layer The observation of interface reaction materials is a big issue for suitable design in integrated circuits. In nanoscale, in situ transmission electron microscopy is powerful for quantitatively analyz...

https://pubs.acs.org/doi/10.1021/acsami.1c05961

Organic Lead Halide Nanocrystals Providing an Ultra-Wide Color Gamut with Almost-Unity Photoluminescence Quantum Yield The most attractive aspect of perovskite nanocrystals (NCs) for optoelectronic applications is their widely tunable emission wavelength, but it has been quite challenging to tune it without sacrificing the photoluminescence quantum yield (PLQY). In this work, we report a facile ligand-optimized ion-...