Utilizing the unique charge extraction properties of antimony tin oxide nanoparticles for efficient and stable organic photovoltaics

Liu C, Félix R, Forberich K, Du X, Heumüller T, Matt G, Gu E, Wortmann J, Zhao Y, Cao Y, He Y, Ying L, Hauser A, Oszajca MF, Hartmeier B, Rossier M, Lüchinger NA, Liu YS, Guo J, Nie K, Wilks RG, Bachmann J, Bär M, Li N, Brabec C (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Nano Energy Elsevier

Book Volume: 89

Article Number: 106373

DOI: 10.1016/j.nanoen.2021.106373

Abstract

Simultaneously enhancing device performance and longevity, as well as balancing the requirements on cost, scalability, and simplification of processing, is the goal of interface engineering of organic solar cells (OSCs). In our work, we strategically introduce antimony (Sb3+) cations into an efficient and generic n-type SnO2 nanoparticles (NPs) host during the scalable flame spray pyrolysis synthesis. Accordingly, a significant switch of conduction property from an n-type character to a p-type character is observed, with a corresponding shift in the work function (WF) from 4.01 ± 0.02 eV for pristine SnO2 NPs to 5.28 ± 0.02 eV for SnO2 NPs with 20 mol. % Sb content (ATO). Both pristine SnO2 and ATO NPs with fine-tuned optoelectronic properties exhibit remarkable charge carrier extraction properties, excellent UV resistance and photo-stability being compatible with various state-of-the-art OSCs systems. The reliable and scalable pristine SnO2 and ATO NPs processed by doctor-blading in air demand no complex post-treatment. Our work offers a simple but unique approach to accelerate the development of advanced interfacial materials, which could circumvent the major existing interfacial problems in solution-processed OSCs.

Authors with CRIS profile

Chao Liu Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Karen Forberich Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Xiaoyan Du Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Thomas Heumüller Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Gebhard Matt Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Ening Gu Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Jonas Wortmann Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Yicheng Zhao Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Yuanyuan Cao Lehrstuhl für Chemistry of thin film materials Yakun He Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Julien Bachmann Lehrstuhl für Chemistry of thin film materials Marcus Bär
Ning Li Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET)

Additional Organisation(s)

Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden

Involved external institutions

South China University of Technology (SCUT) / 华南理工大学 CN China (CN) Lawrence Berkeley National Laboratory (LBNL) US United States (USA) (US) Avantama AG CH Switzerland (CH) Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) DE Germany (DE)

How to cite

APA:

Liu, C., Félix, R., Forberich, K., Du, X., Heumüller, T., Matt, G.,... Brabec, C. (2021). Utilizing the unique charge extraction properties of antimony tin oxide nanoparticles for efficient and stable organic photovoltaics. Nano Energy, 89. https://doi.org/10.1016/j.nanoen.2021.106373

MLA:

Liu, Chao, et al. "Utilizing the unique charge extraction properties of antimony tin oxide nanoparticles for efficient and stable organic photovoltaics." Nano Energy 89 (2021).

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