Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Asymmetric Spin Valve Based on Fe<sub>3</sub>GaTe<sub>2</sub>/Fe<sub>3</sub>GaTe<sub>2</sub> via the Synergy of the Anomalous Hall Effect and Spin-Dependent Scattering.

ACS nano·2026

Same author

Integrating Multi-Task Eye Tracking and Interpretable Machine Learning for High-Accuracy Screening of Amblyopia in Pediatric Populations.

Journal of eye movement research·2026

Same author

A wireless power transfer system for leadless endovascular electrocorticography.

Communications engineering·2026

Same author

Ultrafast visual perception beyond human capabilities enabled by motion analysis using synaptic transistors.

Nature communications·2026

Same author

Active Rehabilitation Technologies for Post-Stroke Patients.

Biosensors·2026

Same author

Deep Learning Prediction of Childhood Myopia Progression Using Fundus Image and Refraction Data.

JAMA network open·2026

Search research articles

Related Experiment Video

Updated: May 9, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Vertical CNT-Si photodiode array.

Arman Ahnood¹, Hang Zhou, Qing Dai

¹Electrical Engineering Division, Department of Engineering, University of Cambridge , Cambridge, United Kingdom.

|August 9, 2013

Summary

This study presents a novel photodiode using carbon nanotubes (CNTs) and silicon nanopillars. The new design significantly improves performance for advanced imaging systems like computed tomography.

More Related Videos

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Published on: November 9, 2015

Related Experiment Videos

Last Updated: May 9, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Published on: November 9, 2015

Area of Science:

Materials Science
Electrical Engineering
Optoelectronics

Background:

Conventional photodiodes face limitations in operating voltage, response time, and optical coupling.
Flat-panel imaging systems require enhanced resolution and frame rates for applications like computed tomography and particle detection.

Purpose of the Study:

To demonstrate a novel photodiode structure utilizing vertically aligned carbon nanotubes (CNTs) and silicon nanopillars.
To investigate the performance enhancements offered by CNTs' intrinsic electric field enhancement in a p-i-n silicon photodiode.
To assess the potential of this new photodiode for advanced flat-panel imaging applications.

Main Methods:

Fabrication of a photodiode structure comprising thin-film silicon p-i-n on an array of vertically aligned CNTs.
Integration of a noncontinuous cathode electrode.
Characterization of the photodiode's operating voltage, response time, and optical coupling properties.

Main Results:

The CNT-enhanced photodiode exhibited reduced operating voltage and response time compared to conventional planar photodiodes.
Improved optical coupling was achieved through enhanced light trapping facilitated by the CNT array.
The structure demonstrated potential for higher resolution and frame rate imaging systems.

Conclusions:

The demonstrated photodiode design offers significant performance improvements over traditional photodiodes.
The use of CNTs provides a pathway to more efficient and faster photodetectors.
This technology is well-suited for next-generation flat-panel imaging systems in fields such as medical imaging and particle physics.