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Related Concept Videos

P-N junction01:11

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...
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Updated: May 14, 2026

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
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Published on: September 12, 2014

Upconversion in solar cells.

Wilfried Gjhm van Sark1, Jessica de Wild, Jatin K Rath

  • 1Copernicus Institute, Utrecht University, Budapestlaan 6, Utrecht 3584 CD, The Netherlands. w.g.j.h.m.vansark@uu.nl.

Nanoscale Research Letters
|February 19, 2013
PubMed
Summary
This summary is machine-generated.

Researchers explore spectral conversion using nanomaterials for enhanced photovoltaics. Lanthanide-based upconversion shows promise for improving thin-film silicon solar cell efficiency.

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Area of Science:

  • Materials Science
  • Photovoltaics
  • Nanotechnology

Background:

  • Tunable properties of nanosized materials significantly impact technologies like photovoltaics.
  • Spectral conversion, including down- and upconversion, is crucial for optimizing solar energy absorption.
  • Nanostructures such as quantum dots, luminescent dyes, and lanthanide-doped glasses enable wavelength modification of photons.

Purpose of the Study:

  • To discuss the principles and applications of upconversion using lanthanide compounds in various host materials.
  • To demonstrate the efficacy of upconversion for enhancing thin-film silicon solar cells.

Main Methods:

  • Investigating upconversion phenomena in lanthanide-doped materials.
  • Integrating upconversion nanomaterials with thin-film silicon solar cell architectures.

Main Results:

  • Lanthanide compounds exhibit effective upconversion capabilities when incorporated into suitable host materials.
  • Demonstrated successful application of upconversion to improve the performance of thin-film silicon solar cells.

Conclusions:

  • Spectral conversion using nanomaterials, particularly lanthanide-based upconversion, offers a viable strategy for advancing photovoltaic technology.
  • Upconversion is a promising approach to enhance the energy harvesting efficiency of thin-film silicon solar cells.