Visible light assisted NO 2 sensing at room temperature by CdS nanoflake array
HY Li, JW Yoon, CS Lee, K Lim, JW Yoon, JH Lee – Sensors and Actuators B: …, 2017 A Highly ordered CdS nanoflake array was fabricated by CVD, and its gas sensing characteristics were investigated. The sensor exhibited high response (resistance ratio) of 89% to 5...What is the 1932 CIE xy chromaticity diagram?
The 1932 CIE chromaticity diagram is one way to objectively describe color. The three components of human color perception (red, green, and blue) can be transformed to another three dimensional space where one axis is radiance/luminance independent of chromaticity and...What is Color Purity?
Purity, which is equivalent to saturation when talking about xy chromaticity, describes how “pure,” or monochromatic, a color is at a given lightness. For example, consider all spectra with a lightness of 50. The spectrum could be composed of equal intensities of all...What is Delta E (ΔE) used in Colorimetry?
Delta E is an equation to describe the difference between two colors when using the CIE L* a* b* graph. It is defined as follows: As a general rule of thumb, a delta E of one is barely perceptible and a delta E greater than three means two different colors. However,...
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