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Related Concept Videos

P-N junction01:11

P-N junction

1.7K
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...
1.7K

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Related Experiment Video

Updated: May 1, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
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Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

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Fabricating Planar Perovskite Solar Cells through a Greener Approach.

Sajid Sajid1,2, Salem Alzahmi1,2, Nouar Tabet3

  • 1Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates.

Nanomaterials (Basel, Switzerland)
|April 12, 2024
PubMed
Summary

This study introduces a greener method for fabricating efficient perovskite solar cells (PSCs) using triethyl phosphate (TEP) instead of hazardous solvents. This approach avoids toxic chemicals and antisolvents, paving the way for sustainable industrial-scale PSC production.

Keywords:
efficient perovskite solar cellgreen solventperovskite thin filmtriethyl phosphate

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Green Chemistry

Background:

  • Perovskite solar cells (PSCs) rely on solvent engineering for high efficiency.
  • Traditional methods use hazardous precursor and antisolvents (NMP, DMSO, DMF, GBL, CB, DEE, Et2O), posing health and environmental risks.
  • Addressing solvent toxicity is critical for commercializing PSCs.

Purpose of the Study:

  • To develop a novel, environmentally friendly method for fabricating highly efficient planar PSCs.
  • To mitigate the health and environmental hazards associated with toxic solvents in PSC production.
  • To demonstrate a scalable and sustainable approach for PSC manufacturing.

Main Methods:

  • Employed a greener solvent engineering approach, substituting hazardous precursor solvents with triethyl phosphate (TEP).
  • Fabricated perovskite thin films using a two-step procedure, eliminating the need for antisolvents.
  • Utilized a planar device configuration: FTO/SnO2/MAPbI3/spiro-OMeTAD.

Main Results:

  • Achieved a high power conversion efficiency (PCE) of 20.98% for the fabricated planar PSCs.
  • Successfully demonstrated a perovskite thin film fabrication method without hazardous solvents or antisolvents.
  • The TEP-based greener approach yielded superior results compared to other eco-friendly PSC fabrication techniques.

Conclusions:

  • The developed method effectively addresses the toxicity concerns of solvents used in perovskite film fabrication.
  • This environmentally friendly approach offers a promising universal strategy for producing high-efficiency PSCs.
  • The sustainable method holds potential for future industrial-scale PSC fabrication.