Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Low-toxicity functionalized photopolymer for high-efficiency reflection holography with humidity response.

Scientific reports·2026

Same author

Tracking Solar Optimization in Renewable Energy Systems by Using Multiplexed Holograms in Bayfol<sup>®</sup> Photopolymers.

Polymers·2026

Same author

A consortium of arbuscular mycorrhizal fungi and plant growth-promoting bacteria modulates wine grape ripening and composition under climate change conditions.

Food research international (Ottawa, Ont.)·2026

Same author

Holographic Lenses for See-Through Applications Recorded Without Prisms.

Polymers·2025

Same author

Characterization of Holographic Gratings in PVA/AA Using Coherent Nanosecond Laser Exposure.

Polymers·2025

Same author

Phase-Retrieval Algorithm for Hololens Resolution Analysis in a Sustainable Photopolymer.

Polymers·2025

Search research articles

Related Experiment Video

Updated: Aug 25, 2025

Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System

Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System

Published on: July 18, 2015

Green and wide acceptance angle solar concentrators.

Marta Morales-Vidal, Tomás Lloret, Manuel G Ramírez

|October 14, 2022

Summary

Researchers developed holographic solar concentrators (HSCs) using low-toxicity photopolymers. These versatile elements concentrate sunlight throughout the day without costly tracking systems, achieving high efficiency and wide acceptance angles.

More Related Videos

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics

Published on: October 27, 2017

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Related Experiment Videos

Last Updated: Aug 25, 2025

Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System

Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System

Published on: July 18, 2015

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics

Published on: October 27, 2017

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Area of Science:

Optics and Photonics
Renewable Energy Technologies
Materials Science

Background:

Traditional solar concentrators often require expensive tracking systems to follow the sun.
Holographic optical elements offer potential for efficient light manipulation.
Developing cost-effective and efficient solar concentration methods is crucial for renewable energy.

Purpose of the Study:

To create versatile holographic solar concentrators (HSCs) capable of concentrating sunlight across varying solar positions.
To eliminate the need for complex and expensive solar tracking mechanisms.
To achieve a balance between high optical efficiency and a wide angular acceptance range.

Main Methods:

Utilized a low-toxicity photopolymer for fabricating holographic solar concentrators.
Recorded multiplexed holographic elements combining symmetric and asymmetric lenses (545 l/mm) on a single plate.
Measured angular diffraction efficiency at 633 nm to characterize holographic performance.
Evaluated system efficiency by measuring short-circuit current (Isc) of integrated HSC-solar cell setups under varying incident angles.

Main Results:

Demonstrated the ability of HSCs to concentrate sunlight effectively from sunrise to sunset.
Achieved significant angular diffraction efficiency at 633 nm, relevant for silicon solar cells.
The integrated HSC-solar cell system showed efficient performance across different incident angles.
Successfully overcame the typical trade-off between efficiency and acceptance angle.

Conclusions:

Developed a novel holographic solar concentrator with a wide acceptance angle, reducing reliance on tracking systems.
The study presents a breakthrough in holographic solar energy concentration, offering a more versatile and potentially cost-effective solution.
Holographic solar concentrators show promise for efficient solar energy harvesting with enhanced operational flexibility.