NDLI: Solution-processable metal oxides/chelates as electrode buffer layers for efficient and stable polymer solar cells

Content Provider	Royal Society of Chemistry (RSC)
Author	Li, Yongfang Wang, Fuzhi Tan, Zhan'ao
Copyright Year	2015
Abstract	The interfaces between the electrodes and the photoactive layer significantly influence the efficiency and stability of polymer solar cells (PSCs). By choosing suitable interfacial materials, the energetic barrier height at the interface could be reduced to form an ohmic contact with less series resistance, inducing high charge collection efficiency of the corresponding electrodes for holes or electrons. Solution-processable metal compounds, especially metal oxides and transition metal chelates, have the advantages of high charge carrier mobility, suitable work function, low cost, and high environmental stability, which make them attractive for applications as cathode and anode interfacial materials for efficient and stable PSCs. In this paper, we reviewed the recent progress on solution processable metal oxides and metal chelates as buffer layers in conventional and inverted PSCs. In the introduction section, we introduced the operating principles of conventional and inverted PSCs, followed by introducing the energy levels, optical properties, processing methods and characterization techniques of the buffer layers. In the second and third parts, we reviewed recent progress in materials for both anode and cathode buffer layers. Finally, we drew a conclusion and gave a perspective. We believe that solution-processable metal oxides and metal chelates will play a key role as buffer layers in the future fabrication of large area and flexible PSCs with high performance and long term stability.
Starting Page	1059
Ending Page	1091
Page Count	33
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	8
Issue Number	4
Journal	Energy & Environmental Science
DOI	10.1039/c4ee03802a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Polymer Ohmic contact Transition metal Charge carrier Work function Electrode Anode
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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