Hee Tae Kim

Address:

16845 SE 56 Pl, Bellevue, WA 98006

Phone:

(206)2763112

VIN:

WBAVC53577FZ73060

Make:

BMW

Model:

3 SERIES

Year:

2007

US Patent:

20100108116, May 6, 2010

Filed:

Aug 3, 2009

Appl. No.:

12/534517

Inventors:

Minoru Taya - Mercer Island WA, US
Hee Seok Kim - Seattle WA, US
Miseon Choi - Seattle WA, US
Morio Nagata - Toyota, JP

Assignee:

University of Washington - Seattle WA

International Classification:

H01L 35/14
H01L 31/00
B22F 3/105

US Classification:

136239, 136256, 419 1

Abstract:

A first concept is directed to an improved dye-sensitized solar cell (DSSC). In a first embodiment, photo energy conversion efficiency (PCE) is increased by employing a reflective layer disposed underneath the DSSC device to direct light that would otherwise be wasted back into the DSSC device. In a second embodiment, the PCE of a DSSC is increased by adding an additional dye, which exhibits significant absorption in the red and near-IR regions. A novel phthalocyanine derivative has been developed that absorbs well in the red and near IR-regions, readily couples to the titanium oxide semiconductor in the DSSC, and enables the DSSC device to exhibit a high photo-current efficiency. A second concept is directed to novel thermoelectric materials formed from a mechanical alloy of silicon and at least one other periodic element, wherein the mechanical alloy is fused together using spark plasma sintering.