• 专利标题:   Dye sensitized solar cell useful in semiconductors, comprises a counter-electrode comprising carbon-titania nanocomposite thin films.
  • 专利号:   US2022076898-A1, US11676773-B2
  • 发明人:   HERSAM M C, GRAY K A, VIJAYAN B K, LIANG Y T
  • 专利权人:   UNIV NORTHWESTERN
  • 国际专利分类:   B01J035/00, B82Y030/00, B82Y040/00, C01B032/19, C01B032/192, C01G023/053, C09D011/52, H01G009/20, H01L021/00, B01J021/18
  • 专利详细信息:   US2022076898-A1 10 Mar 2022 H01G-009/20 202227 English
  • 申请详细信息:   US2022076898-A1 US518690 04 Nov 2021
  • 优先权号:   US588059P, US518690

▎ 摘  要

NOVELTY - Dye sensitized solar cell comprises: a counter-electrode comprising carbon-titania nanocomposite thin films that are made by forming a carbon-based ink, forming a titania (TiO2) solution, blade-coating a mechanical mixture of the carbon-based ink and the titania solution onto a substrate, and annealing the blade-coated substrate at a first temperature for a first period of time to obtain the carbon-based titania nanocomposite thin films. The carbon-based ink comprises a concentrated solvent-exfoliated graphene ink. The forming of the concentrated SEG ink comprises natural graphite, N,N-dimethylforamide, ethyl-cellulose and terpineol. The carbon-based ink comprises concentrated single walled carbon nanotube (SWCNT) ink. The titania nanosheet ink formed by titanium butoxide and hydrofluoric acid. USE - The cell is useful in semiconductors. ADVANTAGE - The cell: adopts thin films having improved photoactivities; and synthesizes non-covalently bonded SWCNT-TiNS and SEG-TiNS nanocomposites with low carbon defect densities, and improves insight into nanocomposite photocatalytic enhancement mechanisms. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for SWCNT-TiO2 nanocomposite thin film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic characterization of solvent-reduced graphene oxide (SRGO) and solvent-exfoliated graphene (SEG).