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Concurrent Quantitative Conductivity and Mechanical Properties Measurements of Organic Photovoltaic Materials using AFM

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Published on: January 23, 2013

Self-Assembled Organic Materials for Photovoltaic Application.

Tanwistha Ghosh^1,2, Jayanthy S Panicker^3,4, Vijayakumar C Nair^5,6

¹Photosciences and Photonics Section, Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695019, India. tanwistha.myrtus@gmail.com.

|April 12, 2019

Summary

Supramolecular interactions enhance organic solar cell efficiency and stability. This research explores hydrogen-bonding, pi-pi stacking, and dipole-dipole interactions in bulk-heterojunction devices for better performance.

Keywords:

bulk-heterojunction donor-acceptor systems oligomers organic photovoltaic cells polymers self-assembly

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Area of Science:

Materials Science
Organic Electronics
Photovoltaics

Background:

Organic photovoltaic cells (OPVs) with bulk-heterojunction (BHJ) architecture are extensively researched.
Power conversion efficiencies exceeding 10% show OPVs as a viable low-cost alternative to silicon solar cells for specific applications.

Purpose of the Study:

To review the role of supramolecular interactions in improving the efficiency and stability of BHJ organic solar cells.
To explore how tailored supramolecular interactions can enhance donor-acceptor component communication.
To summarize advancements in small molecule, oligomer, and polymer-based OPVs utilizing supramolecular strategies.

Main Methods:

Review of literature on supramolecular chemistry in organic solar cells.
Analysis of studies employing hydrogen-bonding, pi-pi stacking, and dipole-dipole interactions.
Examination of small molecule, oligomer, and polymer-based BHJ systems.

Main Results:

Supramolecular interactions offer a pathway to enhance donor-acceptor interplay in BHJ OPVs.
Stable supramolecular nanostructures can improve the long-term operational stability of organic solar cells.
Various supramolecular strategies have been explored across different material types (small molecule, oligomer, polymer).

Conclusions:

Supramolecular interactions are crucial for optimizing both efficiency and stability in organic solar cells.
Tailoring these interactions provides a powerful tool for designing next-generation OPVs.
Further research into supramolecular self-assembly can unlock the full potential of organic photovoltaics.