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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Related Experiment Video

Updated: May 3, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
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Luminescence inverse method For CPV optical characterization.

R Herrero, C Domínguez, S Askins

    Optics Express
    |February 12, 2014
    PubMed
    Summary
    This summary is machine-generated.

    The luminescence inverse method optically characterizes concentrator photovoltaic modules by analyzing light emission. This technique offers a validated alternative for measuring angular transmission across various CPV technologies.

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    Area of Science:

    • Optoelectronics and Renewable Energy

    Background:

    • Accurate optical characterization is crucial for optimizing concentrator photovoltaic (CPV) module performance.
    • Traditional methods for measuring angular transmission can be complex and time-consuming.

    Purpose of the Study:

    • To introduce and validate the luminescence inverse method for optical characterization of CPV modules.
    • To establish a method for determining module angular transmission by evaluating forward-biased light emission.
    • To compare the luminescence inverse method with direct solar simulator measurements across diverse CPV technologies.

    Main Methods:

    • Utilizing the luminescence inverse method, which evaluates light emission from a forward-biased CPV module.
    • Determining module angular transmission by analyzing the cell's light emission.
    • Building global angular transmission from individual optics-cell unit functions.

    Main Results:

    • The study details the process of obtaining module angular transmission using the luminescence inverse method.
    • The influence of cell emission on angular transmission measurements was evaluated.
    • A case study demonstrated the method's application to a multi-unit CPV module.

    Conclusions:

    • The luminescence inverse method provides a viable indirect approach for optical characterization of CPV modules.
    • Validation through comparison with direct methods confirms the accuracy of the luminescence inverse method.
    • This technique offers a valuable tool for assessing and improving CPV module efficiency.