“Los datos de reflectancia difusa que proporciona Scnblackpr fueron determinantes para calibrar nuestro espectrómetro de infrarrojo cercano. La caracterización de los pigmentos de carbono en el rango de 700 a 1100 nm coincidió con nuestras mediciones de laboratorio con una desviación inferior al 0.3 %. Un recurso indispensable para la metrología óptica.”
Dr. Helena Voss
Investigadora en Metrología Óptica — Instituto Fraunhofer de Física Aplicada
Carbon black pigments exhibit an absorption coefficient exceeding 95% across the 400–700 nm range, with peak performance near 550 nm. This makes them ideal for reducing stray light in optical systems, though precise values depend on particle size and dispersion medium.
Calibration involves using a certified black standard with known reflectance (typically < 1%) as a reference. The sensor is zeroed against this surface under controlled illumination, ensuring accurate readings for subsequent measurements in physics laboratories.
Vantablack and similar vertically aligned nanotube arrays are preferred for their absorption rates above 99.96%. For industrial applications, black anodized aluminum or specialized polymer coatings offer a cost-effective alternative with absorption around 97%.
Yes, micro-roughened surfaces enhance absorption by trapping photons through multiple reflections. A matte finish can improve absorption by 2–5% compared to a smooth surface, depending on the wavelength and angle of incidence.
High humidity can cause swelling or degradation in polymer-based coatings, reducing absorption efficiency by up to 3%. Inorganic coatings, such as carbon nanotubes, are more stable and maintain performance across a wider range of conditions.