InP nanowire photodetectors heteroepitaxially grown between silicon electrodes

Ataur Sarkar; Anurag Chaudhry; V. J. Logeeswaran; Sungsoo Yi; M. Saif Islam

doi:10.1117/12.752513

10 September 2007 InP nanowire photodetectors heteroepitaxially grown between silicon electrodes

Ataur Sarkar, Anurag Chaudhry, V. J. Logeeswaran, Sungsoo Yi, M. Saif Islam

Proceedings Volume 6779, Nanophotonics for Communication: Materials, Devices, and Systems IV; 67790K (2007) https://doi.org/10.1117/12.752513
Event: Optics East, 2007, Boston, MA, United States

Abstract

We demonstrate an InP nanowire based photodetector laterally integrated between two (111)-oriented vertical silicon surfaces. The nanowires are grown through a simple single step chemical vapor deposition (CVD) process using gold nanoparticles as catalyst with in-situ p-doping and have been heteroepitaxially bridged between a pair of prefabricated p-doped Si electrodes. Nonlinear current-voltage characteristics are observed. Although this nonlinearity resembles a back-to-back rectifying profile it originates from space-charge limited conductivity of the nanowires. DC photoelectric characteristics of the device were measured under optical illumination (λ=630 nm) above the bandgap energy (1.34 eV or ~925 nm at room temperature) of InP. The variation in photoconductance with varying input optical power demonstrates high sensitivity of the device to optical illumination.

Citation Download Citation

Ataur Sarkar, Anurag Chaudhry, V. J. Logeeswaran, Sungsoo Yi, and M. Saif Islam "InP nanowire photodetectors heteroepitaxially grown between silicon electrodes", Proc. SPIE 6779, Nanophotonics for Communication: Materials, Devices, and Systems IV, 67790K (10 September 2007); https://doi.org/10.1117/12.752513

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Nanowires

Electrodes

Silicon

Bridges

Molecular bridges

Photodetectors

Gold

Show All Keywords

Keywords/Phrases

Search In:

Publication Years