Observation of self-assembled periodic nano-structures induced by femtosecond laser in both ablation and deposition regimes

2008 ◽  
Author(s):  
Mingzhen Tang ◽  
Haitao Zhang ◽  
Tsing-Hua Her
Keyword(s):  
Femtosecond Laser ◽  
Nano Structures ◽  
Self Assembled

scholarly journals Self-assembled three-dimensional periodic micro-nano structures in bulk quartz crystal induced by femtosecond laser pulses

2019 ◽  
Vol 27 (5) ◽  
pp. 6442 ◽  
Author(s):  
Fangteng Zhang ◽  
Zhaogang Nie ◽  
Huixiang Huang ◽  
Lin Ma ◽  
Hui Tang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Quartz Crystal ◽  
Three Dimensional ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Nano Structures ◽  
Self Assembled

scholarly journals Antireflective and Superhydrophilic Structure on Graphite Written by Femtosecond Laser

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 236
Author(s):  
Rui Lou ◽  
Guangying Li ◽  
Xu Wang ◽  
Wenfu Zhang ◽  
Yishan Wang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Near Infrared ◽  
High Efficiency ◽  
Electronic Devices ◽  
Sample Surface ◽  
Graphite Surface ◽  
Hazardous Substances ◽  
Functional Surface ◽  
Nano Structures ◽  
Average Reflectance

Antireflection and superhydrophilicity performance are desirable for improving the properties of electronic devices. Here, we experimentally provide a strategy of femtosecond laser preparation to create micro-nanostructures on the graphite surface in an air environment. The modified graphite surface is covered with abundant micro-nano structures, and its average reflectance is measured to be 2.7% in the ultraviolet, visible and near-infrared regions (250 to 2250 nm). The wettability transformation of the surface from hydrophilicity to superhydrophilicity is realized. Besides, graphene oxide (GO) and graphene are proved to be formed on the sample surface. This micro-nanostructuring method, which demonstrates features of high efficiency, high controllability, and hazardous substances zero discharge, exhibits the application for functional surface.

Self-assembled nano structures of cationic ester-containing gemini surfactants: The surfactant structure and salt effects

2013 ◽  
Vol 62 ◽  
pp. 201-210 ◽  
Author(s):  
Soheila Javadian ◽  
Hasti Aghdastinat ◽  
Alireza Tehrani-Bagha ◽  
Hussein Gharibi
Keyword(s):  
Gemini Surfactants ◽  
Salt Effects ◽  
Nano Structures ◽  
Self Assembled

NATURE-LIKE PHOTOSYNTHESIS OF WATER AND CARBON DIOXIDE WITH FEMTOSECOND LASER INDUCED SELF-ASSEMBLED METAL NANOSTRUCTURES

2009 ◽  
Vol 23 (31) ◽  
pp. 5849-5857 ◽  
Author(s):  
CONG WANG ◽  
MENGYAN SHEN ◽  
HAIBIN HUO ◽  
HAIZHOU REN ◽  
FADONG YAN ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Femtosecond Laser ◽  
Large Scale ◽  
Metal Nanostructures ◽  
Surface Enhanced ◽  
Earth Abundant ◽  
Metal Nanostructure ◽  
Nanostructure Arrays ◽  
Self Assembled

Large-scale replication of the natural process of photosynthesis is a crucial subject of storing solar energy and saving our environment. Here, we report femtosecond laser induced self-assembled metal nanostructure arrays, which are easily mass producible on earth-abundant metals, can directly synthesize liquid and solid hydrocarbon compounds from carbon dioxide, water, and sunlight at a production rate of more than 1 × 105 μ L/(gh) that is significantly (103–106 times) higher than those in previous studies.1,2 The efficiency for storing solar energy of the photosynthesis is about 10% in the present simple experimental setup which can be further improved. Moreover, different from previous artificial photosynthesis works, this phenomenon presents a new mechanism that, through a surface-enhanced photodissociation process, nature-like photosynthesis can be performed artificially.

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