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Related Experiment Video

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Device Modeling of Organic Photovoltaic Cells with Traditional and Inverted Cells Using s-SWCNT:C60 as Active Layer.

Vijai M Moorthy1, Viranjay M Srivastava1

  • 1Department of Electronic Engineering, Howard College, University of KwaZulu-Natal, Durban 4041, South Africa.

Nanomaterials (Basel, Switzerland)
|August 26, 2022
PubMed
Summary

This study compares Traditional Organic Solar Cells (TOSC) and Inverted OSC (IOSC) using s-SWCNT:C60. IOSC achieved higher efficiency (10.4%) than TOSC (9.5%) by optimizing active layer thickness.

Keywords:
VLSIbulk hetero-junction structurecarbon nanotube (CNT)device modelinginverted organic solar cellsmicroelectronicsnanotechnologyorganic solar cells

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Device Physics

Background:

  • Organic Solar Cells (OSCs) offer a promising alternative for renewable energy generation.
  • Bulk Hetero-Junction (BHJ) structures are key to efficient organic photovoltaic devices.
  • Single Wall Carbon Nanotube (s-SWCNT):C60 is a relevant active material for OSCs.

Purpose of the Study:

  • To analyze and compare the performance of Traditional OSC (TOSC) and Inverted OSC (IOSC) devices.
  • To investigate the impact of active layer thickness on BHJ photodiode performance.
  • To optimize device parameters for enhanced organic photovoltaic efficiency.

Main Methods:

  • Utilized 2D photovoltaic device modeling for analysis.
  • Investigated s-SWCNT:C60 as the active material in a BHJ structure.
  • Varied active layer thickness from 50 to 300 nm for TOSC and IOSC.

Main Results:

  • IOSC demonstrated a maximum power conversion efficiency of 10.4%, surpassing TOSC's 9.5%.
  • Optimal active layer thickness was identified for maximizing efficacy in both TOSC and IOSC Nano Photodiodes (NPDs).
  • Device structure and geometrical parameters were optimized for improved photodiode performance.

Conclusions:

  • Inverted OSC architecture offers superior performance compared to traditional designs.
  • Optimizing active layer thickness is crucial for maximizing organic photovoltaic efficiency.
  • Further optimization of device parameters can enhance the performance of organic photodiodes.