Solar Blind UV Light Induced Photo‐Voltage from Transparent Y₂O₃: Eu‐PMMA Nanocomposite Film

Abstract

Transparent inorganic-organic nanocomposite film (Y 2 O 3 : Eu-PMMA)W is fabricated for solar blind UV light photo-voltage response at room temperature. In suggested design, Y 2 O 3 : Eu nanoparticales with efficient visible luminescence excited under solar blind UV light is incorporated into an Y 2 O 3 : Eu-PMMA nanocomposite film coated onto a glass substrate, which converts solar blind UV light to visible light that is absorbed by the Si-detector. Photo-voltage response from the thin film Si-APD detector attached with the inorganic-organic nanocomposite film demonstrates a prospective application for solar blind UV light detection.

Y2O3:Eu3+@SiO2 nanocomposites as a convertor for a broadband solar‐blind UV photodetector

“…In addition, the constructed solar-blind UV photodetector combines the advantages of traditional solar-blind spectrum converter and ordinary semiconductor, and it has a broadband response range, thus simplifying the solarblind UV detection. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]…”

“…Another promising strategy for the realization of effective solar‐blind UV radiation detection is to employ rare‐earth (RE) ions activated materials for assisting solar‐blind UV detection. Benefiting from the unique advantages of rich energy levels, stable physical and chemical properties of RE ions, an RE ions doped down conversion (DC) material is a new converter for solar‐blind UV detection developed in recent years 14–16 . The principle involves the rational modulation of the wide spectrum of solar‐blind UV to fit the response curve of the ordinary semiconductors, thus enhancing the detection efficiency of the device.…”

“…A major advantage of this design is that the experimental steps are simple and the process is safe. In addition, the constructed solar‐blind UV photodetector combines the advantages of traditional solar‐blind spectrum converter and ordinary semiconductor, and it has a broadband response range, thus simplifying the solar‐blind UV detection 5–21 …”

“…Benefiting from the unique advantages of rich energy levels, stable physical and chemical properties of RE ions, an RE ions doped down conversion (DC) material is a new converter for solar-blind UV detection developed in recent years. [14][15][16] The principle involves the rational modulation of the wide spectrum of solar-blind UV to fit the response curve of the ordinary semiconductors, thus enhancing the detection efficiency of the device. Here, we propose a novel DC nanocomposite material that can be used for broadband and effective solarblind UV detection.…”

Enhanced Capture of Broadband Solar‐Blind UV Light via Introducing Alkali‐Metal Ions (Li+, Na+, and K+) into DC Spectral Converter

“…[ 34,35 ] In our previous study, Y 2 O 3 :Eu 3+ was introduced into the constructed composite system to preliminarily realize the capture of single wavelength (254 nm) solar‐blind UV light, because it can convert UV incidences into longer wavelengths suitable for absorption and sensing by ordinary semiconductors. [ 36 ] Nevertheless, the detection efficiency is relatively low and the natural solar‐blind UV light is broadband continuous, so it is of great research significance and practical value to realize high efficient detection of broadband solar‐blind UV light through an ingenious design. We have found that the photoelectric detection efficiency is positively correlated with the productivity of spectral conversion.…”