NDLI: Enhanced photovoltaic performance of inverted polymer solar cells through atomic layer deposited $Al_{2}O_{3}$ passivation of ZnO-nanoparticle buffer layer

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Enhanced photovoltaic performance of inverted polymer solar cells through atomic layer deposited $Al_{2}O_{3}$ passivation of ZnO-nanoparticle buffer layer

Content Provider	Scilit
Author	Wei, Bin Tang, Zhenyu Wang, Shuanglong Qin, Cunping Li, Chunya Ding, Xingwei Gao, Yulai Portier, Xavier Gourbilleau, Fabrice Stievenard, Didier Xu, Tao
Copyright Year	2018
Description	Journal: Nanotechnology In this work, atomic layer deposited (ALD) Al2O3 ultrathin layer was introduced to passivate the ZnO nanoparticles (NPs) buffer layer of an inverted polymer solar cells (PSCs) based on P3HT:PCBM. The surface morphology of ZnO-NPs/Al2O3 interface was systematically analyzed by using a variety of tools especially transmission electron microscopy (TEM), evidencing a conformal ALD-Al2O3 deposition. The thickness of Al2O3 layers was optimized at the nanoscale to boost electron transport of the ZnO-NPs layer, which can be attributed to the suppression of oxygen vacancy defects in ZnO-NPs confirmed by photoluminescence measurement. The optimal inverted PSCs passivated by ALD-Al2O3 exhibited a ~22% higher power conversion efficiency (PCE) than the control devices with a pristine ZnO-NPs buffer layer. The employment of the ALD-Al2O3 passivation layer with precisely controlled thickness provides a promising approach to develop high efficiency PSCs with novel polymer materials.
Related Links	http://iopscience.iop.org/article/10.1088/1361-6528/aad131/pdf
ISSN	09574484
e-ISSN	13616528
DOI	10.1088/1361-6528/aad131
Journal	Nanotechnology
Issue Number	39
Volume Number	29
Language	English
Publisher	IOP Publishing
Publisher Date	2018-07-04
Access Restriction	Open
Subject Keyword	Journal: Nanotechnology Polymer Solar Cell
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering

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