Location

Nessmith-Lane Atrium

Session Format

Poster Presentation

Research Area Topic:

Natural & Physical Sciences - Physics

Abstract

Photon up-conversion is a luminescent process which changes incoming low energy light into a higher energy form of light, such as infrared into visible light. This process is very popular and applicable to TV displays, bio-labels, and solar cells. The work to be presented is about erbium's ability to convert infrared laser light in green light by photon up-conversion. The trivalent erbium is doped into gadolinium tungstate in order to research the efficiency and mechanisms involved in the up-conversion process. Although still currently being research, it has already shown promising results including low photon energies, economic synthesis, and naked-eye up-conversion, meaning you can see it glow green without the need for extra equipment. Up-conversion was first observed by Francois Auzel in 1966 and has many theoretical formulations attributed to it include rate equations for photon absorption and emission, concentration quenching, and quantum efficiency. Spectroscopic studies are done on compounds of varying concentration and at varying magnitudes of power in order to obtain the relevant data to carry out these theoretical models which lead to understanding of the underlying mechanisms of energy up-conversion. Erbium doped phosphors are extremely popular to the field of solar up-converters for their ability to transform the Sun's unharnessable infrared light in to visible light which can be absorbed and utilized by solar cells, thereby increasing its efficiency and saving energy. A number of publications and dissertations have been published regarding the application of erbium up-converters to solar cells and I believe my research shall reveal significance results in the field.

Keywords

Georgia Southern University, Research Symposium, Up-conversion emissions, Er3, Doped Gd2(WO4)3 phosphors, Photon up-conversion

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

Presentation Type and Release Option

Presentation (Open Access)

Start Date

4-16-2016 10:45 AM

End Date

4-16-2016 12:00 PM

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Apr 16th, 10:45 AM Apr 16th, 12:00 PM

Up-Conversion Emissions of Er3 Doped Gd2(WO4)3 Phosphors

Nessmith-Lane Atrium

Photon up-conversion is a luminescent process which changes incoming low energy light into a higher energy form of light, such as infrared into visible light. This process is very popular and applicable to TV displays, bio-labels, and solar cells. The work to be presented is about erbium's ability to convert infrared laser light in green light by photon up-conversion. The trivalent erbium is doped into gadolinium tungstate in order to research the efficiency and mechanisms involved in the up-conversion process. Although still currently being research, it has already shown promising results including low photon energies, economic synthesis, and naked-eye up-conversion, meaning you can see it glow green without the need for extra equipment. Up-conversion was first observed by Francois Auzel in 1966 and has many theoretical formulations attributed to it include rate equations for photon absorption and emission, concentration quenching, and quantum efficiency. Spectroscopic studies are done on compounds of varying concentration and at varying magnitudes of power in order to obtain the relevant data to carry out these theoretical models which lead to understanding of the underlying mechanisms of energy up-conversion. Erbium doped phosphors are extremely popular to the field of solar up-converters for their ability to transform the Sun's unharnessable infrared light in to visible light which can be absorbed and utilized by solar cells, thereby increasing its efficiency and saving energy. A number of publications and dissertations have been published regarding the application of erbium up-converters to solar cells and I believe my research shall reveal significance results in the field.