Hao Fong

US Patent:

20110079275, Apr 7, 2011

Filed:

Oct 2, 2010

Appl. No.:

12/896860

Inventors:

Qiquan Qiao - Brookings SD, US
Prakash Joshi - Brookings SD, US
Hao Fong - Rapid City SD, US
David Galipeau - Brookings SD, US
Lifeng Zhang - Rapid City SD, US

International Classification:

H01L 31/0264
C09K 11/67
B82Y 30/00

US Classification:

136252, 2523014 R, 252582, 977773, 977948

Abstract:

Composite electrode materials for DSSCs, DSSCs incorporating the composite electrode materials and methods for making the composite electrode materials are provided. The composite electrode materials are composed of semiconductor nanofibers embedded in a matrix of semiconductor nanoparticles. DSSCs incorporating the composite electrode materials exhibit both increased carrier transport and improved light harvesting, particularly at wavelengths of 600 nm or greater (e.g., 600 nm to 800 nm or greater).

US Patent:

20120315815, Dec 13, 2012

Filed:

May 29, 2012

Appl. No.:

13/482981

Inventors:

Hao Fong - Rapid City SD, US
Lifeng Zhang - Greensboro NC, US
Yong Zhao - Rapid City SD, US
Zhengtao Zhu - Rapid City SD, US

Assignee:

South Dakota Board of Regents - Rapid City SD

International Classification:

D04H 1/728
D04H 1/08
B82Y 40/00

US Classification:

442320, 264465, 977896

Abstract:

A method of synthesizing mechanically resilient titanium carbide (TiC) nano-fibrous felts comprising continuous nanofibers or nano-ribbons with TiC crystallites embedded in carbon matrix, comprising: (a) electrospinning a spin dope for making precursor nanofibers with diameters less than 0.5 μm; (b) overlaying the nanofibers to produce a nano-fibrous mat (felt); and then (c) heating the nano-felts first at a low temperature, and then at a high temperature for making electrospun continuous nanofibers or nano-ribbons with TiC crystallites embedded in carbon matrix; and (d) chlorinating the above electrospun nano-felts at an elevated temperature to remove titanium for producing carbon-derived-carbon (CDC) nano-fibrous felt with high specific surface areas.

US Patent:

7141277, Nov 28, 2006

Filed:

Mar 4, 2003

Appl. No.:

10/379215

Inventors:

Richard A. Vaia - Beavercreek OH, US
Hao Fong - Germantown MD, US
Jeffrey H. Sanders - Vandalia OH, US

Assignee:

The United States of America as represented by the Secretary of the Air Force - Washington DC

International Classification:

B05D 3/06
H05H 1/24
C23C 14/58
C23C 14/08

US Classification:

427534, 427536, 427539, 427579

Abstract:

A method for preparing high-use temperature, light-weight polymer/inorganic nanocomposite materials with enhanced thermal stability and performance characteristics, which comprises treating a polymer/inorganic nanocomposite material with oxygen plasma under conditions which result in a thin, protective, ceramic-like layer at the surface of the thus-treated nanocomposite material.