Cited 3 time in webofscience Cited 3 time in scopus

Iodine-mediated non-destructive multilayer stacking of polymer semiconductors for near-infrared-selective photodiode

Title
Iodine-mediated non-destructive multilayer stacking of polymer semiconductors for near-infrared-selective photodiode
Authors
Park, SooyeonYoo, Seong HoonKim, JuheeKang, MingyunSim, Kyu MinChung, Dae Sung
DGIST Authors
Park, Sooyeon; Yoo, Seong Hoon; Kim, Juhee; Kang, Mingyun; Sim, Kyu Min; Chung, Dae Sung
Issue Date
2019-05
Citation
Organic Electronics: physics, materials, applications, 68, 63-69
Type
Article
Article Type
Article
Author Keywords
Iodine dopingMultilayer stackingNIR photodetectorPhotodiodePolymer semiconductorVapor deposition
Keywords
Morphological analysisMultilayer stackingPolymer semiconductorsPolymeric semiconductorsSelective photodiodeSemiconductor dopingFilm preparationHeterojunctionsInfrared devicesIodineMultilayersPhotodiodesPolymer filmsVapor depositionCommercial applicationsDoping and de-dopingIodine doping
ISSN
1566-1199
Abstract
A facile stacking technology must be developed for various types of polymer semiconductors through a continuous solution process for successful commercial applications of organic electronics. In this study, we report a strategic method of stacking different polymer semiconductors from the same processing solvent in a non-destructive manner using vapor-phase iodine. We utilize the concept of reversible doping mechanism of iodine; interstitial iodine ions in the polymer backbone significantly reduce the solubility of entire films and such an immobilized phase can be quickly recovered to the initial phase via a simple vacuum treatment. Thus, a polymer–polymer p-n planar heterojunction (PHJ) can be realized using the same solvent without compromising the inherent electrical/optical characteristics of the polymer semiconductor. Detailed photophysical and morphological analyses on the doping and dedoping of polymeric semiconductors with iodine are discussed. As a target application of such iodine-mediated non-destructive stacking technology, a thin-film near-infrared(NIR)-selective polymeric photodiode, which can fully reflect the genuine advantages of a well-defined PHJ, is demonstrated. We successfully demonstrate a visible-blind and narrow-band NIR-selective photodiode with a high peak detectivity of 1.50 × 10 11 Jones. © 2019
URI
http://hdl.handle.net/20.500.11750/9676
DOI
10.1016/j.orgel.2019.02.002
Publisher
Elsevier BV
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringPolymer Energy Materials Lab1. Journal Articles


qrcode mendeley

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

BROWSE