Direct UV photoenhanced chemical vapour deposition of a-Si:H from disilane using a deuterium lamp

Bhatnagar, Y.K.; Milne, W. I.

doi:10.1016/0040-6090(88)90429-4

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…Photochemical reactions induced by irradiation with ultraviolet (UV) light are utilized in a large variety of applications such as surface cleaning, − antiviral and bactericidal surface disinfection, air and water purification, − photochemical surface modification, − wettability alteration, − material deposition, − surface charging, − photolithography, , and the patterning of self-assembled monolayers. − The photopatterning of polymer layers due to photoisomerization reactions of azobenzene groups has been studied intensively. − …”

Section: Introductionmentioning

confidence: 99%

Monitoring Photochemical Reactions Using Marangoni Flows

2017

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We evaluated the sensitivity and time resolution of a technique for photochemical reaction monitoring based on the interferometric detection of the deformation of liquid films. The reaction products change the local surface tension and induce Marangoni flow in the liquid film. As a model system, we consider the irradiation of the aliphatic hydrocarbon squalane with broadband deep-UV light. We developed a numerical model that quantitatively reproduces the flow patterns observed in the experiments. Moreover, we present self-similarity solutions that elucidate the mechanisms governing different stages of the dynamics and their parametric dependence. Surface tension changes as small as Δγ = 10–6 N/m can be detected, and time resolutions of <1 s can be achieved.

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