XPS depth analysis of metal/polymer multilayer by vacuum electrospray droplet impact

Sakai, Yuji; Takaishi, Rio; Ninomiya, Satoshi; Hiraoka, Kenzo

doi:10.1002/sia.5669

Cited by 14 publications

(13 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our previous work using nonselected cluster beam by V-EDI, no selective etching for PI was also observed. [21] As shown in Fig. 3, however, a full width at half maximum (FWHM) of each element shows gradual broadening with irradiation time.…”

Section: Xps Analysis Obtained By Selected Charged Droplets Irradiationmentioning

confidence: 83%

“…Namely, no selective etching took place. In our previous work using non‐selected cluster beam by V‐EDI, no selective etching for PI was also observed . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The in-situ XPS depth analysis was performed by moving the sample target between the etching and analyzing chambers. [21] The surface roughnesses before and after etching were measured ex situ by AFM (JSPM-5400, JEOL, Japan). A 0.05 mm thick PI film was supplied by Goodfellow (England).…”

Section: Methodsmentioning

confidence: 99%

“…This inevitably leads to the poorer beam brightness. To circumvent this situation, we have developed V‐EDI using electrospray generated in vacuum . When a stainless steel capillary with 30 µm i.d.…”

Section: Introductionmentioning

confidence: 99%

“…To circumvent this situation, we have developed V-EDI using electrospray generated in vacuum. [19][20][21] When a stainless steel capillary with 30 μm i.d. was used in V-EDI, it was necessary to irradiate infrared laser at the tip of the capillary to prevent freezing of the water flowing out of the capillary.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Sputtering properties for polyimide by vacuum electrospray droplet impact (V-EDI) using size-selected cluster ions

Sakai

Ninomiya

Hiraoka

2016

Surf. Interface Anal.

Self Cite

View full text Add to dashboard Cite

a Recently, the vacuum electrospray droplet impact (V-EDI) was developed as a cluster ion beam source in our laboratory. To attain the ion beam stability and compact design of the ion source, a silica nano-capillary with 15 μm i.d. was used as the emitter of the beam. It was found that stable electrospray was generated from the capillary tip without the use of laser heating when aqueous solution of 20% ethanol was used. The m/z distribution of electrospray droplets was measured by pulsing the primary beam. By assuming that the charged droplets contain 50% of the excess charges defined by the Rayleigh limit equation, the average mass, and charge of the droplets generated by the present V-EDI are estimated as 2. ) were generated. Surface analysis for polyimide (PI) film by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) was made using G1, G2, and non-selected cluster beams. No selective etching was observed when G1, G2, and non-selected beams were used. However, larger surface roughening was observed when smaller size cluster beams were used. This suggests that larger size clusters cure the surface damage caused by the smaller ones.

show abstract

Section: Xps Analysis Obtained By Selected Charged Droplets Irradiationmentioning

confidence: 83%

“…Namely, no selective etching took place. In our previous work using non‐selected cluster beam by V‐EDI, no selective etching for PI was also observed . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sputtering properties for polyimide by vacuum electrospray droplet impact (V-EDI) using size-selected cluster ions

Sakai

Ninomiya

Hiraoka

2016

Surf. Interface Anal.

Self Cite

View full text Add to dashboard Cite

show abstract

Electrospray: More than just an ionization source

et al. 2020

View full text Add to dashboard Cite

is a potential-driven process of liquid atomization, which is employed in the field of analytical chemistry, particularly as an ionization technique for mass spectrometric analyses of biomolecules. In this review, we demonstrate the extraordinary versatility of the electrospray by overviewing the specifics and advanced applications of ESbased processing of low molecular mass compounds, biomolecules, polymers, nanoparticles, and cells. Thus, under suitable experimental conditions, ES can be used as a powerful tool for highly controlled deposition of homogeneous films or various patterns, which may sometimes even be organized into 3D structures. We also emphasize its capacity to produce composite materials including encapsulation systems and polymeric fibers. Further, we present several other, less common ES-based applications. This review provides an insight into the remarkable potential of ES, which can be very useful in the designing of innovative and unique strategies.

show abstract

Synthesis of reusable macroporous St/BMA copolymer resin and its absorbency to organic solvent and oil

Fang

Chen

et al. 2015

Polym. Adv. Technol.

View full text Add to dashboard Cite

In this paper, a reusable macroporous high oil absorption resin for oil spills was synthesized successfully by suspension copolymerization with styrene and butyl methacrylate as monomers. In the process of suspension copolymerization, a porogenic agent was introduced into the reaction system. Structure and surface morphology of the macroporous resin were characterized by Fourier transform infrared spectrometry, X-ray photoelectron spectroscopy, and scanning electron microscopy. In addition, effects of different reaction factors on density and particle size of macroporous resins and effects of various factors on the oil absorbency of macroporous resins were discussed. Furthermore, oil absorption kinetics and repeatability of resin and the absorbency of the macroporous resin in various oils were also studied. Compared with the resin without macroporous structure, the maximum oil absorbency of the macroporous resin to the carbon tetrachloride (CCl 4 ) was 28.28 g/g, which increased by 61.42%. Meanwhile, the saturated oil absorption time of resin also decreased significantly from 7.5 to 2 hr. The macroporous high oil absorption resin presents predominant performance of reuse and regeneration. Moreover, the macroporous resin had certain absorbency (8.7 g/g) to crude oil, which makes it useful for marine oil spill.

show abstract

XPS depth analysis of metal/polymer multilayer by vacuum electrospray droplet impact

Cited by 14 publications

References 17 publications

Sputtering properties for polyimide by vacuum electrospray droplet impact (V-EDI) using size-selected cluster ions

Sputtering properties for polyimide by vacuum electrospray droplet impact (V-EDI) using size-selected cluster ions

Electrospray: More than just an ionization source

Synthesis of reusable macroporous St/BMA copolymer resin and its absorbency to organic solvent and oil

Contact Info

Product

Resources

About