BROWSE

Related Scientist

CINAP's photo.

CINAP
나노구조물리 연구단
more info

ITEM VIEW & DOWNLOAD

Exciton Transfer at Heterointerfaces of MoS2 Monolayers and Fluorescent Molecular Aggregates

Cited 0 time in webofscience Cited 0 time in scopus
115 Viewed 0 Downloaded
Title
Exciton Transfer at Heterointerfaces of MoS2 Monolayers and Fluorescent Molecular Aggregates
Author(s)
Kwon, Soyeong; Jeong, Dong Yeun; Chengyun Hong; Saejin Oh; Song, Jungeun; Soo Ho Choi; Ki Kang Kim; Yoon, Seokhyun; Choi, Taeyoung; Yee, Ki-Ju; Ji-Hee Kim; You, Youngmin; Kim, Dong-Wook
Publication Date
2022-08
Journal
ADVANCED SCIENCE, v.9, no.23
Publisher
WILEY
Abstract
Copyright © 1999-2022 John Wiley & Sons, Inc. All rights reserved. Integration of distinct materials to form heterostructures enables the proposal of new functional devices based on emergent physical phenomena beyond the properties of the constituent materials. The optical responses and electrical transport characteristics of heterostructures depend on the charge and exciton transfer (CT and ET) at the interfaces, determined by the interfacial energy level alignment. In this work, heterostructures consisting of aggregates of fluorescent molecules (DY1) and 2D semiconductor MoS2 monolayers are fabricated. Photoluminescence spectra of DY1/MoS2 show quenching of the DY1 emission and enhancement of the MoS2 emission, indicating a strong electronic interaction between these two materials. Nanoscopic mappings of the light-induced contact potential difference changes rule out the CT process at the interface. Using femtosecond transient absorption spectroscopy, the rapid interfacial ET process from DY1 aggregates to MoS2 and a fourfold extension of the exciton lifetime in MoS2 are elucidated. These results suggest that the integration of 2D inorganic semiconductors with fluorescent molecules can provide versatile approaches to engineer the physical characteristics of materials for both fundamental studies and novel optoelectronic device applications.
URI
https://pr.ibs.re.kr/handle/8788114/12283
DOI
10.1002/advs.202201875
ISSN
2198-3844
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 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