Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/9944
Title: | Understanding the light soaking effects in inverted organic solar cells functionalized with conjugated macroelectrolyte electron-collecting interlayers | Authors: | Xu, Weidong Xia, Ruidong Ye, Tengling Zhao, Li Kan, Zhipeng Mei, Yang Yan, Congfei Zhang, Xinwen Lai, Wenyong Keivanidis, Panagiotis E. Huang, Wei |
metadata.dc.contributor.other: | Κεϊβανίδης, Παναγιώτης Ε. | Major Field of Science: | Natural Sciences | Field Category: | Chemical Sciences | Keywords: | Cathode interlayer;Conjugated polyelectrolytes;Inverted solar cells;Light soaking effect;Star‐shaped molecules | Issue Date: | 1-Feb-2016 | Source: | Advanced Science, 2016, vol. 3, no. 2 | Volume: | 3 | Issue: | 2 | Journal: | Advanced Science | Abstract: | Three kinds of charged star-shaped conjugated macroelectrolytes, named as PhNBr, TPANBr, and TrNBr, are synthesized as electron-collecting interlayers for inverted polymer solar cells (i-PSCs). Based on these well-defined structured interlayer materials, the light soaking (LS) effect observed in i-PSCs was studied systematically and accurately. The general character of the LS effect is further verified by studying additional i-PSC devices functionalized with other common interlayers. The key-role of UV photons was confirmed by electrochemical impedance spectroscopy and electron-only devices. In addition, the ultraviolet photoelectron spectroscopy measurements indicate that the work function of the indium tin oxide (ITO)/interlayer cathode is significantly reduced after UV treatment. In these i-PSC devices the LS effect originates from the adsorbed oxygen on the ITO substrates when oxygen plasma is used however, even a small amount of oxygen from the ambient is also enough for triggering the LS effect, albeit with a weaker intensity. Our results suggest that the effect of adsorbed oxygen on ITO needs to be considered with attention while preparing i-PSCs. This is an important finding that can aid the large-scale manufacturing of organic solar cells via printing technologies, which do not always ensure the full protection of the device electrode substrates from oxygen. | URI: | https://hdl.handle.net/20.500.14279/9944 | ISSN: | 21983844 | DOI: | 10.1002/advs.201500245 | Rights: | © Wiley | Type: | Article | Affiliation : | Nanjing University of Posts and Telecommunications Cyprus University of Technology Harbin Institute of Technology Fondazione Istituto Italiano di Tecnologia Nanjing Tech University |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Keivanides.pdf | Article | 1.21 MB | Adobe PDF | View/Open |
CORE Recommender
SCOPUSTM
Citations
34
checked on Nov 9, 2023
WEB OF SCIENCETM
Citations
10
32
Last Week
0
0
Last month
2
2
checked on Oct 29, 2023
Page view(s)
452
Last Week
0
0
Last month
5
5
checked on Dec 25, 2024
Download(s) 20
129
checked on Dec 25, 2024
Google ScholarTM
Check
Altmetric
Items in KTISIS are protected by copyright, with all rights reserved, unless otherwise indicated.