Liquid silane-based compositions and methods of fabrication

Patent metadata

Field	Value
Publication number	US-2016160397-A1
Application number	US-201414222604-A
Country	US
Kind code	A1
Filing date	Mar 22, 2014
Priority date	Apr 6, 2010
Publication date	Jun 9, 2016
Grant date	—

Abstract

Described herein are synthesis schemes and methods for producing silicon based nanostructures and materials, including compositions and methods for synthesis of silicon-based nanowires and composites from four-component inks of a liquid silane, a polymer, an accelerant and a solvent, or from five-component inks of a liquid silane, a polymer, an accelerant, a solid phase and a solvent. The methods can be used for producing silicon based microfibers and nanofibers that can be used in a variety of applications including material composites, electronic devices, sensors, photodetectors, batteries, ultracapacitors, and photosensitive substrates.

First claim

1 - 10 . (canceled)

11 . An electrospinning ink composition, comprising a liquid silane of the formula Si n H 2n , an accelerant, a polymer, and a solvent.

12 . An electrospinning ink composition, comprising: a liquid silane of the formula Si n H 2n , an accelerant, a polymer, a solid phase, and a solvent.

13 . The ink composition as recited in claim 11 or claim 12 , wherein the liquid silane comprises a liquid silane is a cyclosilane selected from the group of cyclosilanes consisting essentially of cyclopentasilane, cyclohexasilane and 1-silylcyclopentasilane.

14 . The ink composition as recited in claim 11 or claim 12 embodiments, wherein the liquid silane comprises a liquid silane of the formula Si n H 2n+2 .

15 . The ink composition as recited in claim 11 or claim 12 , wherein the accelerant comprises cyclopentasilane.

16 . The ink composition as recited in claim 11 or claim 12 , wherein the accelerant comprises a Si substituted cyclopentasilane of the formula H 3 Si—Si 5 H 9 (n-silylcyclopentasilane).

17 . The ink composition as recited in claim 11 or claim 12 , wherein the accelerant comprises a polyhydropolysilane of formula Si n H n+2 where n ranges from 2-10,000.

18 . The ink composition as recited in claim 11 or claim 12 , wherein the accelerant is selected from the group of accelerants consisting of: a linear silane of formula Si 3 H 8 , a cyclohexasilane derivative with one or more linear or branched silyl groups attached to the ring, a halogenated silane, a polyhydrocyclopolysilane ring attached to another polyhydrocyclopolysilane and neopentasilane of formula (H 3 Si) 4 Si.

19 . The ink composition as recited in claim 12 , wherein the solid phase is a metallic particle selected from the group of metal particles consisting essentially of metallic particles of Al, Au, Ag, Cu, In—Sn—O, fluorine-doped tin oxide and carbon black.

20 . The ink composition as recited in claim 12 , wherein the solid phase is a semiconducting particle selected from the group of semiconducting particles consisting essentially of carbon nanotubes, silicon nanowires, polydihydrosilane (Si n H 2 ) n , CdSe, CdTe, PbS, PbSe, ZnO and Si.

21 . The ink composition as recited in embodiment 12 , wherein the solid phase is a metal reagent selected from the group of metal reagents consisting essentially of CaH 2 , CaBr 2 , Cp 2 Ti(CO) 2 , TiCl 4 , V(CO) 6 , Cr(CO) 6 , Cp 2 Cr, Mn 2 (CO) 10 , CpMn(CO) 3 , Fe(CO) 5 , Fe 2 (CO) 9 , Co 2 (CO) 8 , CO 4 (CO) 12 , Cp 2 Co, Cp 2 Ni, Ni(COD) 2 , BaH 2 , [Ru(CO) 4 ] ∞ , Os 3 (CO) 12 , Ru 3 (CO) 12 , HFeCo 3 (CO) 12 , and H 2 FeRu 3 (CO) 13 .

22 . An ink composition as recited in claim 12 , wherein the solid phase is a photoactive particle selected from the group of photoactive particles consisting essentially of a carbon fullerene, a quantum dot of CdSe, PbS, Si or Ge, and a core-shell quantum dot of ZnSe/CdSe or Si/Ge.

Assignees

• Ndsu Res Foundation

Inventors

• Boudjouk Philip
• Dai Xuliang
• Elangovan Arumugasamy
• Anderson Kenneth
• Han Sijin

Classifications

• D01F11/00 Primary

  Chemical after-treatment of artificial filaments or the like during manufacture · CPC title

• D01F9/10 Primary

  by decomposition of organic substances (D01F9/12 takes precedence) · CPC title

• D10B2101/10

  based on non-oxides other than metals · CPC title

• C30B1/023

  from solids with amorphous structure · CPC title

• D06M10/001

  Treatment with visible light, infrared or ultraviolet, X-rays · CPC title