Experimental analysis for the effect of dynamic capillarity on stress transformation in porous silicon

Wei Qiu; Yi Lan Kang; Qiu Li; Zhen Kun Lei; Qing Hua Qin

doi:10.1063/1.2838716

Experimental analysis for the effect of dynamic capillarity on stress transformation in porous silicon

Wei Qiu^*, Yi Lan Kang, Qiu Li, Zhen Kun Lei, Qing Hua Qin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The evolution of real-time stress in porous silicon (PS) during drying is investigated using micro-Raman spectroscopy. The results show that the PS sample underwent non-negligible stress when immersed in liquid and suffered a stress impulsion during drying. Such nonlinear transformation and nonhomogeneneous distribution of stress are regarded as the coupling effects of several physical phenomena attributable to the intricate topological structure of PS. The effect of dynamic capillarity can induce microcracks and even collapse in PS structures during manufacture and storage.

Original language	English
Article number	041906
Journal	Applied Physics Letters
Volume	92
Issue number	4
DOIs	https://doi.org/10.1063/1.2838716
Publication status	Published - 2008

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title = "Experimental analysis for the effect of dynamic capillarity on stress transformation in porous silicon",

abstract = "The evolution of real-time stress in porous silicon (PS) during drying is investigated using micro-Raman spectroscopy. The results show that the PS sample underwent non-negligible stress when immersed in liquid and suffered a stress impulsion during drying. Such nonlinear transformation and nonhomogeneneous distribution of stress are regarded as the coupling effects of several physical phenomena attributable to the intricate topological structure of PS. The effect of dynamic capillarity can induce microcracks and even collapse in PS structures during manufacture and storage.",

author = "Wei Qiu and Kang, {Yi Lan} and Qiu Li and Lei, {Zhen Kun} and Qin, {Qing Hua}",

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AU - Qiu, Wei

AU - Kang, Yi Lan

AU - Li, Qiu

AU - Lei, Zhen Kun

AU - Qin, Qing Hua

PY - 2008

Y1 - 2008

N2 - The evolution of real-time stress in porous silicon (PS) during drying is investigated using micro-Raman spectroscopy. The results show that the PS sample underwent non-negligible stress when immersed in liquid and suffered a stress impulsion during drying. Such nonlinear transformation and nonhomogeneneous distribution of stress are regarded as the coupling effects of several physical phenomena attributable to the intricate topological structure of PS. The effect of dynamic capillarity can induce microcracks and even collapse in PS structures during manufacture and storage.

AB - The evolution of real-time stress in porous silicon (PS) during drying is investigated using micro-Raman spectroscopy. The results show that the PS sample underwent non-negligible stress when immersed in liquid and suffered a stress impulsion during drying. Such nonlinear transformation and nonhomogeneneous distribution of stress are regarded as the coupling effects of several physical phenomena attributable to the intricate topological structure of PS. The effect of dynamic capillarity can induce microcracks and even collapse in PS structures during manufacture and storage.

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U2 - 10.1063/1.2838716

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VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

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Experimental analysis for the effect of dynamic capillarity on stress transformation in porous silicon

Abstract

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