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

Journal Article · · Nano Energy
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  1. Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany); Erlangen Graduate School in Advanced Optical Technologies (SAOT), Erlangen (Germany)
  2. Helmholtz-Zentrum Berlin (HZB), (Germany). German Research Centre for Materials and Energy
  3. Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany); Helmholz Institute Erlangen-Nürnberg (HI-ERN), Erlangen (Germany)
  4. Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany)
  5. South China Univ. of Technology (SCUT), Guangzhou (China)
  6. Avantama, Ltd., Zurich (Switzerland)
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  8. Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany); St. Petersburg State University (Russian Federation)
  9. Helmholtz-Zentrum Berlin (HZB), (Germany). German Research Centre for Materials and Energy; Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany); Helmholz Institute Erlangen-Nürnberg (HI-ERN), Erlangen (Germany)
  10. Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany); Helmholz Institute Erlangen-Nürnberg (HI-ERN), Erlangen (Germany); Zhengzhou University (China)
+ Show Author Affiliations
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.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
European Research Council (ERC); German Research Foundation (DFG); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1900419
Journal Information:
Nano Energy, Journal Name: Nano Energy Vol. 89; ISSN 2211-2855
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

14 SOLAR ENERGY
antimony doped tin oxide
doping mechanism
interface engineering
metal oxide nanoparticles
organic photovoltaics