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A vertically integrated solar-powered electrochromic window for energy efficient buildings.

Aubrey L Dyer¹, Rayford H Bulloch, Yinhua Zhou

¹School of Chemistry and Biochemistry, Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, GA, 30332, USA.

Advanced Materials (Deerfield Beach, Fla.)

|May 28, 2014

Summary

This summary is machine-generated.

Researchers developed a novel self-powered electrochromic/photovoltaic (EC/PV) device. This dual-function technology generates electricity and regulates sunlight by switching between transparent and colored states.

Keywords:

dual function device energy efficient buildings solar-powered electrochromic window solution-processed conjugated polymers tandem solar cells transparent organic photovoltaic cells

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Area of Science:

Materials Science
Energy Conversion
Optoelectronics

Background:

Smart window technologies aim to improve energy efficiency and occupant comfort.
Integrating energy generation with light modulation presents a significant challenge.
Existing solutions often involve separate components, increasing complexity and cost.

Purpose of the Study:

To develop a solution-processed, self-powered polymer electrochromic/photovoltaic (EC/PV) device.
To create a dual-functional system for energy generation and light regulation.
To demonstrate a net energy positive device for smart window applications.

Main Methods:

Vertical integration of two transparent photovoltaic (PV) cells with an electrochromic device (ECD).
Utilizing solution-processing techniques for device fabrication.
Characterization of the device's electrochromic and photovoltaic performance.

Main Results:

Successfully realized a vertically integrated EC/PV device.
Demonstrated reversible switching between transparent and colored states.
Confirmed the device's capability to generate electricity, both individually and in pairs.
Established the device as a net energy positive system.

Conclusions:

The developed EC/PV device offers a promising solution for energy-efficient smart windows.
The dual functionality of electricity generation and light modulation is achieved in a single, integrated unit.
Solution processing enables scalable and potentially cost-effective manufacturing of these advanced devices.