CaltechAUTHORS
  A Caltech Library Service

A hydro/oxo-phobic top hole-selective layer for efficient and stable colloidal quantum dot solar cells

Baek, Se-Woong and Lee, Sang-Hoon and Song, Jung Hoon and Kim, Changjo and Ha, Ye-Seol and Shin, Hyeyoung and Kim, Hyungjun and Jeong, Sohee and Lee, Jung-Yong (2018) A hydro/oxo-phobic top hole-selective layer for efficient and stable colloidal quantum dot solar cells. Energy and Environmental Science, 11 (8). pp. 2078-2084. ISSN 1754-5692. https://resolver.caltech.edu/CaltechAUTHORS:20180529-092753800

[img] PDF - Supplemental Material
See Usage Policy.

1509Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20180529-092753800

Abstract

In this report, we explore the underlying mechanisms by which doped organic thin films as a top hole-selective layer (HSL) improve the performance and stability of colloidal quantum dot (CQD)-based solar cells. Molecular dynamics-based theoretical studies prove that the hydro/oxo-phobic properties of the HSL serve to efficiently passivate the CQD solid. Furthermore, the robust and outstanding electrical properties of the HSL, simultaneously ensure a high power conversion efficiency (PCE) and increase the stability performance of CQD-based solar cells. As a result, a best PCE of 11.7% in a lead sulfide (PbS)-based CQD solar cell is achieved and over 90% of the initial performance is retained after 1 year storage under ambient conditions.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1039/c7ee03184jDOIArticle
http://www.rsc.org/suppdata/c7/ee/c7ee03184j/c7ee03184j1.pdfPublisherSupplementary Information
ORCID:
AuthorORCID
Song, Jung Hoon0000-0002-4773-113X
Shin, Hyeyoung0000-0001-6694-7895
Kim, Hyungjun0000-0001-8261-9381
Jeong, Sohee0000-0002-9863-1374
Lee, Jung-Yong0000-0002-5347-8230
Additional Information:© 2018 The Royal Society of Chemistry. Received 7th November 2017, Accepted 8th May 2018, First published on 10th May 2018. This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIP, NRF-2015M1A2A2057509). We gratefully acknowledge support from the EEWS Research Project of the office of the KAIST EEWS Initiative (EEWS-2016-N11160015) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP), a financial grant from the Ministry of Trade, Industry & Energy (No. 20163030013620 and 20173010013200). This work was also supported by the Global R&D program (1415134409) funded by KIAT. There are no conflicts to declare.
Funders:
Funding AgencyGrant Number
National Research Foundation of KoreaNRF-2015M1A2A2057509
Korea Advanced Institute of Science and Technology (KAIST)EEWS-2016-N11160015
Korea Institute of Energy Technology Evaluation and Planning (KETEP)UNSPECIFIED
Ministry of Trade, Industry & Energy (Korea)20163030013620
Ministry of Trade, Industry & Energy (Korea)20173010013200
Korea Institute for Advancement of Technology1415134409
Issue or Number:8
Record Number:CaltechAUTHORS:20180529-092753800
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180529-092753800
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86652
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:29 May 2018 17:37
Last Modified:03 Oct 2019 19:46

Repository Staff Only: item control page