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首页> 外文期刊>Applied Surface Science >Pulsed laser deposition of polyhydroxybutyrate biodegradable polymer thin films using ArF excimer laser
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Pulsed laser deposition of polyhydroxybutyrate biodegradable polymer thin films using ArF excimer laser

机译：使用ArF准分子激光脉冲激光沉积聚羟基丁酸酯可生物降解的聚合物薄膜

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摘要

We demonstrated the pulsed laser deposition (PLD) of high quality films of a biodegradable polymer, the polyhydroxybutyrate (PHB). Thin films of PHB were deposited on KBr substrates and fused silica plates using an ArF (lambda = 193 nm, FWHM = 30 ns) excimer laser with fluences between 0.05 and 1.5 J cm(-2). FTIR spectroscopic measurements proved that at the appropriate fluence (0.05, 0.09 and 0.12 J cm(-2)), the films exhibited similar functional groups with no significant laser-produced modifications present. Optical microscopic images showed that the layers were contiguous with embedded micrometer-sized grains. Ellipsometric results determined the wavelength dependence (lambda similar to 245-1000 nm) of the refractive index and absorption coefficient which were new information about the material and were not published in the scientific literature. We believe that our deposited PHB thin films would have more possible applications. For example to our supposal the thin layers would be applicable in laser induced forward transfer (LIFT) of biological materials using them as absorbing thin films. (c) 2006 Elsevier B.V. All rights reserved.
机译：我们展示了可生物降解的聚合物聚羟基丁酸酯（PHB）的高质量薄膜的脉冲激光沉积（PLD）。 PHB薄膜被沉积在KBr基板和石英玻璃板上，使用ArF（λ= 193 nm，FWHM = 30 ns）受激准分子激光，通量在0.05至1.5 J cm（-2）之间。 FTIR光谱测量证明，在适当的注量（0.05、0.09和0.12 J cm（-2））下，薄膜显示出相似的官能团，没有明显的激光产生的修饰。光学显微图像显示，这些层与嵌入的微米级晶粒相邻。椭偏结果确定了折射率和吸收系数的波长依赖性（λ类似于245-1000 nm），这是有关该材料的新信息，科学文献中未公开。我们相信，我们沉积的PHB薄膜将有更多可能的应用。例如，对于我们的假设，薄层将适用于将其用作吸收薄膜的生物材料的激光诱导正向转移（LIFT）。 （c）2006 Elsevier B.V.保留所有权利。

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