Environment

Zinc Oxide Nanowire Photodetector

Zinc Oxide Nanowire Photodetector
This scanning electron microscope image shows a zinc oxide (ZnO) nanowire photodetector device grown by photolithography. Nanowires geometry and structure make them both sensitive to light and efficient low-noise signaling devices, so they are ideally suited for applications involving light—such as detection, imaging, information storage, and intrachip optical communications. In addition, different types of nanowires can be combined to create devices sensitive to different wavelengths of light. Zinc oxide's (ZnO) electrical, optoelectronic, and photochemical properties have led to its use in solar cells, transparent electrodes, and blue/UV light-emitting devices.

Minimum credit: 

Cesare Soci, University of California at San Diego

Size: 

The separation between the "fingers" is 2 µm.

Pixels: Width: 

645

Pixels: Height: 

484

Permissions:

This image was created by another institution, not the NISE Network. This image is available to NISE Network member organizations for non-profit educational use only. Uses may include but are not limited to reproduction and distribution of copies, creation of derivative works, and combination with other assets to create exhibitions, programs, publications, research, and Web sites. Minimum credit required.

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Silicon Nanowire Device

Silicon Nanowire Device
This scanning electron microscope image shows a silicon nanowire resting on two silicon nitride (SiNx) membranes. Thermoelectric materials convert heat to electricity and vice versa. Most fossil-fuel-powered engines generate waste heat, so researchers are using nanotechnologies to explore ways of making thermoelectric devices more efficient in order to convert that waste heat to usable power—and thus save energy. This assembly was built to measure the thermal conductivity of a silicon nanowire synthesized specifically for thermoelectric applications.

Minimum credit: 

Renkun Chen, University of California at Berkeley

Size: 

The diameter of the central nanowire is approximately 100 nm.

Pixels: Width: 

510

Pixels: Height: 

441

Permissions:

This image was created by another institution, not the NISE Network. This image is available to NISE Network member organizations for non-profit educational use only. Uses may include but are not limited to reproduction and distribution of copies, creation of derivative works, and combination with other assets to create exhibitions, programs, publications, research, and Web sites. Minimum credit required.

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Silicon Nanowire Array

Silicon Nanowire Array
This is a scanning electron microscope image of a silicon nanowire array synthesized for thermoelectric applications. Thermoelectric materials convert heat to electricity and vice versa. Most fossil-fuel-powered engines generate waste heat, so researchers are using nanotechnologies to explore ways of making thermoelectric devices more efficient in order to convert that waste heat to usable power—and thus save energy.

Minimum credit: 

Renkun Chen, University of California at Berkeley

Size: 

Each nanowire is approximately 100 nm in diameter.

Pixels: Width: 

1233

Pixels: Height: 

1233

Permissions:

This image was created by another institution, not the NISE Network. This image is available to NISE Network member organizations for non-profit educational use only. Uses may include but are not limited to reproduction and distribution of copies, creation of derivative works, and combination with other assets to create exhibitions, programs, publications, research, and Web sites. Minimum credit required.

Return to gallery