All-Inorganic p−n Heterojunction Solar Cells by Solution Combustion Synthesis Using N-type FeMnO3 Perovskite Photoactive Layer

Frontiers in Chemistry

Ioannis Vamvasakis¹  Gerasimos S. Armatas¹  Ioannis T. Papadas²  Apostolos Ioakeimidis³  Stelios A. Choulis³  Polyvios Eleftheriou³ 

[1] Department of Materials Science and Technology, University of Crete, Heraklion, Greece;Department of Public and Community Health, School of Public Health, University of West Attica, Athens, Greece;Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol, Cyprus;

关键词: inorganic perovskites;    solution combustion synthesis;    FeMnO3;    NiO;    p-n junction;    functional metal oxides;   

DOI  :  10.3389/fchem.2021.754487

来源: DOAJ

【 摘 要 】

This study outlines the synthesis and physicochemical characteristics of a solution-processable iron manganite (FeMnO3) nanoparticles via a chemical combustion method using tartaric acid as a fuel whilst demonstrating the performance of this material as a n-type photoactive layer in all-oxide solar cells. It is shown that the solution combustion synthesis (SCS) method enables the formation of pure crystal phase FeMnO3 with controllable particle size. XRD pattern and morphology images from TEM confirm the purity of FeMnO3 phase and the relatively small crystallite size (∼13 nm), firstly reported in the literature. Moreover, to assemble a network of connected FeMnO3 nanoparticles, β-alanine was used as a capping agent and dimethylformamide (DMF) as a polar aprotic solvent for the colloidal dispersion of FeMnO3 NPs. This procedure yields a ∼500 nm thick FeMnO3 n-type photoactive layer. The proposed method is crucial to obtain functional solution processed NiO/FeMnO3 heterojunction inorganic photovoltaics. Photovoltaic performance and solar cell device limitations of the NiO/FeMnO3-based heterojunction solar cells are presented.

【 授权许可】

Unknown