Fabrication of tungsten-based optical diffuser using fiberform nanostructure via efficient plasma route

Abstract

Optical diffusion is an essential process used to manage photons in a wide range of photoelectric systems. This work proposes an approach to fabricate novel optical diffusers by a plasma-processing technique, using fiberform nanostructures formed by helium plasma irradiation and subsequent annealing. After an annealing procedure in the air for oxidation, the optical properties and the light-diffusing abilities of these nanostructured thin films were studied. In addition to the morphology analysis and total transmittance measurement, the diffusion efficiency of the optical diffusers was analyzed using a transmitted scatter distribution function (TDF). It was revealed that the diffusion efficiency of a device with an irradiation time of 30 minutes could reach 97%. The results demonstrate the potential of these nanostructured optical diffusers for various photoelectric applications.

PMMA@TiO2@SiO2 Composite Microsphere with Sufficiently High Light Transmittance and Haze for Promising Application in Optical Diffusion Film

“…A diffusion film is a thin film that can scatter light and is mainly applied in optical devices, displays, lighting, and solar cells. − The research on diffusion films is primarily aimed at the demand and improvement of optical materials and devices. In many optical applications, such as displays and lighting devices, people often hope to achieve uniform light intensity distribution and reduce reflection to improve observation and light utilization. − However, traditional transparent materials often cause light to reflect on the material surface, resulting in uneven light intensity distribution and wasted light energy .…”

Optimization of the optical diffuser inspired by Morpho butterflies for the feasible fabrication

“…This is because their principle is based on "multiple scattering" or "refraction" to diffuse the incident light. Usually, these two most common types of optical diffusers are categorized as "volumetric" and "surface-relief" types, respectively 5,6 .…”

“…On the other hand, it can lead to diminishing ⅱ) wide-angle diffusion and/or ⅲ) low color dispersion, especially in the case that the size of incident light is small. Although various novel diffusers have been proposed 6,7 , most of these utilize multiple scattering and/or refraction. Thus, even novel diffusers, they also face the same challenges as conventional ones.…”

Facile way of preparing PMMA@TiO2@SiO2 (P@T@S) composite microspheres with high haze and light transmittance for diffusion film

“…With the rapid development of optoelectronic technology, optical diffusion film, as an important optical material, has been widely used in LED lighting, display devices, solar cells, and other fields. [1][2][3][4][5][6] The main function of optical diffusion film is to scatter incident light in a uniform manner after multiple internal reflections, thereby achieving uniform light distribution and natural diffusion effects. [7][8][9] Therefore, the performance of optical diffusion film is of great significance to improve both light utilization and optical uniformity for optoelectronic devices.…”