Enhanced random lasing from distributed Bragg reflector assisted Au-ZnO nanowire Schottky diode

Bashar, Sunayna B.; Suja, Mohammad; Shi, Wenhao; Liu, Jianlin

doi:10.1063/1.4967177

Enhanced random lasing from distributed Bragg reflector assisted Au-ZnO nanowire Schottky diode

Journal Article · Mon Nov 07 00:00:00 EST 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4967177· OSTI ID:1473877

Bashar, Sunayna B. ^[1]; ^[2]; Shi, Wenhao ^[2]; Liu, Jianlin ^[2]

Univ. of California, Riverside, CA (United States). Dept. of Electrical and Computer Engineering; University of California Riverside
Univ. of California, Riverside, CA (United States). Dept. of Electrical and Computer Engineering

Here, an electrically pumped ultraviolet random laser based on an Au-ZnO nanowire Schottky junction on top of a SiO₂/SiN_x distributed Bragg reflector (DBR) has been fabricated. Electrical characterization shows typical Schottky diode current-voltage characteristics. Evident random lasing behavior is observed from electroluminescence measurement at room temperature. In comparison with a reference device having similar nanowire morphology but no DBR, this laser demonstrates almost 1.8 times reduction in threshold current and 4 times enhancement in output power. The performance enhancement originates from the incorporation of the DBR structure, which provides high reflectivity in the designed wavelength range.

View Accepted Manuscript (DOE)

Research Organization:: Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES); Univ. of California, Riverside, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: SC0012670

OSTI ID:: 1473877

Alternate ID(s):: OSTI ID: 1331024

Journal Information:: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 19 Vol. 109; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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