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Published on: March 2, 2021
Solution processed MoO3 interfacial layer for organic photovoltaics prepared by a facile synthesis method
1Department of Material Science and Engineering, University of California-Los Angeles, CA 90025, USA.
Advanced Materials (Deerfield Beach, Fla.)
|April 11, 2012
Summary
A novel, cost-effective molybdenum trioxide (MoO(3)) film serves as an anode buffer layer in polymer solar cells. This MoO(3) layer achieves performance comparable to traditional PEDOT:PSS without requiring high-temperature annealing.
Area of Science:
- Materials Science
- Renewable Energy
- Nanotechnology
Background:
- Bulk-heterojunction polymer photovoltaic devices are crucial for renewable energy.
- Conventional anode buffer layers like PEDOT:PSS often require high-temperature annealing, increasing manufacturing costs and complexity.
Purpose of the Study:
- To introduce a facile and cost-effective molybdenum trioxide (MoO(3)) film as an alternative anode buffer layer.
- To evaluate the performance of bulk-heterojunction polymer photovoltaic devices using this MoO(3) buffer layer.
Main Methods:
- Spin-coating a MoO(3) film from a solution prepared via a facile synthetic route.
- Fabricating bulk-heterojunction polymer photovoltaic devices incorporating the MoO(3) anode buffer layer.
- Comparing device efficiency with devices using a conventional PEDOT:PSS layer.
Main Results:
- The MoO(3) film was successfully prepared using a simple and economical method.
- Devices with the MoO(3) anode buffer layer exhibited efficiencies comparable to those with PEDOT:PSS.
- The MoO(3) buffer layer performed effectively without the need for elevated temperature annealing.
Conclusions:
- A facile and cost-effective MoO(3) film can effectively function as an anode buffer layer in polymer photovoltaic devices.
- This MoO(3) buffer layer offers a promising alternative to PEDOT:PSS, potentially simplifying device fabrication and reducing costs.

