Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/11003
Title: Low-Temperature Combustion Synthesis of a Spinel NiCo2O4 Hole Transport Layer for Perovskite Photovoltaics
Authors: Papadas, Ioannis T. 
Ioakeimidis, Apostolos 
Armatas, Gerasimos S. 
Choulis, Stelios A. 
Major Field of Science: Engineering and Technology
Field Category: Materials Engineering
Keywords: Combustion synthesis;Hole transporting layers;NiCo2O4;Perovskites solar cells;Transparent conductive oxides
Issue Date: Mar-2018
Source: Advanced Science, 2018, vol. 5, no. 5
Volume: 5
Issue: 5
Journal: Advanced Science 
Abstract: The synthesis and characterization of low-temperature solution-processable monodispersed nickel cobaltite (NiCo 2 O 4 ) nanoparticles (NPs) via a combustion synthesis is reported using tartaric acid as fuel and the performance as a hole transport layer (HTL) for perovskite solar cells (PVSCs) is demonstrated. NiCo 2 O 4 is a p-type semiconductor consisting of environmentally friendly, abundant elements and higher conductivity compared to NiO. It is shown that the combustion synthesis of spinel NiCo 2 O 4 using tartaric acid as fuel can be used to control the NPs size and provide smooth, compact, and homogeneous functional HTLs processed by blade coating. Study of PVSCs with different NiCo 2 O 4 thickness as HTL reveals a difference on hole extraction efficiency, and for 15 nm, optimized thickness enhanced hole carrier collection is achieved. As a result, p-i-n structure of PVSCs with 15 nm NiCo 2 O 4 HTLs shows reliable performance and power conversion efficiency values in the range of 15.5% with negligible hysteresis.
URI: https://hdl.handle.net/20.500.14279/11003
ISSN: 21983844
DOI: 10.1002/advs.201701029
Rights: © WILEY
Type: Article
Affiliation : Cyprus University of Technology 
University of Crete 
Publication Type: Peer Reviewed
Appears in Collections:Άρθρα/Articles

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