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Chemically Engineered Titanium Oxide Interconnecting Layer for Multijunction Polymer Solar Cells.
Kim, Geunjin; Back, Hyungcheol; Kong, Jaemin; Naseer, Laiba; Jeong, Jiwon; Son, Jaehyoung; Lee, Jongjin; Kang, Sung-Oong; Lee, Kwanghee.
Afiliación
  • Kim G; Hanwha Solutions, Seoul 04541, Republic of Korea.
  • Back H; Hanwha Solutions, Seoul 04541, Republic of Korea.
  • Kong J; Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Naseer L; Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Jeong J; Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Son J; Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Lee J; Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Kang SO; Department of Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea.
  • Lee K; MExplorer Co., Ltd., Ansan 15588, Republic of Korea.
Polymers (Basel) ; 16(5)2024 Feb 21.
Article en En | MEDLINE | ID: mdl-38475280
ABSTRACT
We report chemically tunable n-type titanium oxides using ethanolamine as a nitrogen dopant source. As the amount of ethanolamine added to the titanium oxide precursor during synthesis increases, the Fermi level of the resulting titanium oxides (ethanolamine-incorporated titanium oxides) significantly changes from -4.9 eV to -4.3 eV, and their free charge carrier densities are enhanced by two orders of magnitudes, reaching up to 5 × 1018 cm-3. Unexpectedly, a basic ethanolamine reinforces not only the n-type properties of titanium oxides, but also their basicity, which facilitates acid-base ionic junctions in contact with acidic materials. The enhanced charge carrier density and basicity of the chemically tuned titanium oxides enable multi-junction solar cells to have interconnecting junctions consisting of basic n-type titanium oxides and acidic p-type PEDOTPSS to gain high open-circuit voltages of 1.44 V and 2.25 V from tandem and triple architectures, respectively.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2024 Tipo del documento: Article Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2024 Tipo del documento: Article Pais de publicación: Suiza