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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 Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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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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Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

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Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
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Related Experiment Video

Updated: Jan 6, 2026

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics
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Fluorescent Protein Solid-State Luminescent Solar Concentrators.

Sihan Lei1, Sara Ferrara1, Sanchari Chowdhury1

  • 1Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Chair of Biogenic Functional Materials, Schulgasse 22, 94315, Straubing, Germany.

Small (Weinheim an Der Bergstrasse, Germany)
|October 22, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces solid-state luminescent solar concentrators (LSCs) using fluorescent proteins (FPs). These sustainable FPs offer enhanced stability and efficiency for biologized photovoltaics.

Keywords:
fluorescent proteinslight‐guiding matrixluminescent solar concentratorprotein‐epoxy stabilizationsolar window

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Biotechnology

Background:

  • Silicon-photovoltaic (Si-PV) integration faces efficiency and aesthetic challenges.
  • Luminescent solar concentrators (LSCs) offer an alternative but often use toxic emitters.
  • Current biogenic emitter LSCs are liquid-based, suffering from poor stability and leakage.

Purpose of the Study:

  • To develop sustainable, solid-state LSCs using fluorescent proteins (FPs).
  • To improve the photostability and optical efficiency of FP-based LSCs.
  • To advance biologized photovoltaics for urban integration.

Main Methods:

  • Integration of an archetypal FP (T-Sapphire) into light-guiding epoxy materials.
  • Optimization of water content and stabilizers for photoluminescence.
  • Fabrication and stability testing of solid-state FP-LSCs.

Main Results:

  • FP solid-state LSCs demonstrated significantly enhanced stability (250 days vs. 6 hours).
  • Achieved a maximum optical efficiency (ηopt) of 7.41%.
  • Maintained photoluminescence features over extended storage periods.

Conclusions:

  • Solid-state FP-LSCs represent a sustainable advancement over traditional and liquid-state LSCs.
  • This technology is a key step toward practical biologized photovoltaics.
  • Offers a promising solution for efficient and aesthetically pleasing solar energy integration.