Binks B P, Cui Z-G, Fletcher P D I
Surfactant & Colloid Group, Department of Chemistry, University of Hull, Hull HU6 7RX, United Kingdom.
Langmuir. 2006 Feb 14;22(4):1664-70. doi: 10.1021/la052816p.
We have used an optical transmission microscope equipped with a digital camera and fitted with a narrow-band-pass filter to obtain absorbance images consisting of an array of pixel absorbance values. Absorbance images of films of carbon nanoparticles were used to derive spatially resolved images of the carbon film thicknesses with a resolution in the thickness dimension of a few nanometers. The technique was applied to the characterization of carbon nanoparticle films at cellulose-coated glass surfaces and at the oil-water interfaces of emulsion drops. For the emulsions, it was necessary to use oil and water phases of equal refractive index to avoid artifacts due to the drops acting as lenses.
我们使用了一台配备数码相机并装有窄带通滤波器的光学透射显微镜，以获取由一系列像素吸光度值组成的吸光度图像。碳纳米颗粒薄膜的吸光度图像被用于推导碳膜厚度的空间分辨图像，其厚度维度的分辨率可达几纳米。该技术被应用于表征纤维素涂层玻璃表面以及乳液滴油水界面处的碳纳米颗粒薄膜。对于乳液，有必要使用折射率相等的油相和水相，以避免由于液滴起到透镜作用而产生伪影。
