BROWSE

Related Scientist

Researcher

나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
more info

Single-step fabrication of quantum funnels via centrifugal colloidal casting of nanoparticle films

Cited 30 time in webofscience Cited 0 time in scopus
318 Viewed 1,393 Downloaded
Title
Single-step fabrication of quantum funnels via centrifugal colloidal casting of nanoparticle films
Author(s)
Kim, JY; Adinolfi, V; Sutherland, BR; Voznyy, O; Kwon, SJ; Tae Wu Kim; Kim, J; Hyotcherl Ihee; Kemp, K; Adachi, M; Yuan, MJ; Kramer, I; Zhitomirsky, D; Hoogland, S; Sargent, EH
Publication Date
2015-07
Journal
NATURE COMMUNICATIONS, v.6, no., pp.7772 -
Publisher
NATURE PUBLISHING GROUP
Abstract
Centrifugal casting of composites and ceramics has been widely employed to improve the mechanical and thermal properties of functional materials. This powerful method has yet to be deployed in the context of nanoparticles-yet size-effect tuning of quantum dots is among their most distinctive and application-relevant features. Here we report the first gradient nanoparticle films to be constructed in a single step. By creating a stable colloid of nanoparticles that are capped with electronic-conduction-compatible ligands we were able to leverage centrifugal casting for thin-films devices. This new method, termed centrifugal colloidal casting, is demonstrated to form films in a bandgap-ordered manner with efficient carrier funnelling towards the lowest energy layer. We constructed the first quantum-gradient photodiode to be formed in a single deposition step and, as a result of the gradient-enhanced electric field, experimentally measured the highest normalized detectivity of any colloidal quantum dot photodetector
URI
http://pr.ibs.re.kr/handle/8788114/1959
DOI
10.1038/ncomms8772
ISSN
2041-1723
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
ncomms8772.pdfDownload

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