BROWSE

Related Scientist

CNCR's photo.

CNCR
나노물질 및 화학반응 연구단
more info

ITEM VIEW & DOWNLOAD

Manipulation of hot electron flow on plasmonic nanodiodes fabricated by nanosphere lithography

Cited 0 time in webofscience Cited 0 time in scopus
9 Viewed 0 Downloaded
Title
Manipulation of hot electron flow on plasmonic nanodiodes fabricated by nanosphere lithography
Author(s)
Mincheol Kang; Yujin Park; Hyunhwa Lee; Changhwan Lee; Jeong Young Park
Publication Date
2021-05
Journal
NANOTECHNOLOGY, v.32, no.22
Publisher
IOP PUBLISHING LTD
Abstract
Energy conversion to generate hot electrons through the excitation of localized surface plasmon resonance (LSPR) in metallic nanostructures is an emerging strategy in photovoltaics and photocatalytic devices. Important factors for surface plasmon and hot electron generation are the size, shape, and materials of plasmonic metal nanostructures, which affect LSPR excitation, absorbance, and hot electron collection. Here, we fabricated the ordered structure of metal-semiconductor plasmonic nanodiodes using nanosphere lithography and reactive ion etching. Two types of hole-shaped plasmonic nanostructures with the hole diameter of 280 and 115 nm were fabricated on Au/TiO2 Schottky diodes. We show that hot electron flow can be manipulated by changing the size of plasmonic nanostructures on the Schottky diode. We show that the short-circuit photocurrent changes and the incident photon-to-electron conversion efficiency results exhibit the peak shift depending on the structures. These phenomena are explicitly observed with finite difference time domain simulations. The capability of tuning the morphology of plasmonic nanostructure on the Schottky diode can give rise to new possibilities in controlling hot electron generation and developing novel hot-electron-based energy conversion devices.
URI
https://pr.ibs.re.kr/handle/8788114/9541
DOI
10.1088/1361-6528/abe827
ISSN
0957-4484
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse