File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

김동석

Kim, Dong Suk
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Enhanced electrical properties of Li-salts doped mesoporous TiO2 in perovskite solar cells

Author(s)
Kim, MinjinChoi, In-wooChoi, Seung JuSong, Ji WonMo, Sung-InAn, Jeong-HoJo, YimhyunAhn, SeJinAhn, Seoung KyuKim, Gi-HwanKim, Dong Suk
Issued Date
2021-03
DOI
10.1016/j.joule.2021.02.007
URI
https://scholarworks.unist.ac.kr/handle/201301/60203
Citation
JOULE, v.5, no.3, pp.659 - 672
Abstract
The charge transferability of the electron transfer layers (ETLs) is important for achieving high performance in mesoscopic (mp) perovskite solar cells (PSCs). However, because of the low electron extraction efficiency of TiO2, lithium doping is essentially required. In this work, we compared the electrical properties of mp-TiO2 doped with Li-salts with different anions-LiTFSI, Li2CO3, LiCl, and LiF. Interestingly, we found that the anions of the Li-salt dopants affect the electrical properties of the ETLs and the solar cell performance. The Li2CO3 doping of mp-TiO2 led to conduction bands deeper than those of pristine mp-TiO2 or other doped mp-TiO2. The maximum efficiency of 25.28% and certified efficiency of 24.68% (Newport) was obtained by using Li2CO3 dopant. This optimization of the ETLs properties is expected to greatly contribute to the progress of PSCs by leading to further increases in their efficiency.
Publisher
CELL PRESS
ISSN
2542-4351
Keyword
HIGHLY EFFICIENTTRANSPORT LAYERSTABILITY ENHANCEMENTHYSTERESIS-FREEGRAPHENE OXIDEPERFORMANCEDIFFUSIONLENGTHSNANORODSSTATE

qrcode

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