Jonathan E Allen

US Patent:

20110248315, Oct 13, 2011

Filed:

Aug 14, 2009

Appl. No.:

13/058891

Inventors:

Chang-Yong Nam - Upton NY, US
Charles T. Black - New York NY, US
Ioana R. Gearba - Austin TX, US
Jonathan Edward Allen - Medford NY, US

Assignee:

BROOKHAVEN SCIENCE ASSOCIATES - Upton NY

International Classification:

H01L 31/0336
H01L 31/18

US Classification:

257184, 438 94, 257E31005, 257E31124

Abstract:

An electrode comprising a plurality of structured pillars dispersed across a base contact and its method of manufacture are described. In one embodiment the structured pillars are columnar structures having a circular cross-section and are dispersed across the base surface as a uniformly spaced two-dimensional array. The height, diameter, and separation of the structured pillars are preferably on the nanometer scale and, hence, electrodes comprising the pillars are identified as nanostructured pillar electrodes. The nanostructured pillars may be formed, for example, by deposition into or etching through a surface template using standard lithography processes. Structured pillar electrodes offer a number of advantages when incorporated into optoelectronic devices such as photovoltaic cells. These include improved charge collection efficiency via a reduction in the carrier transport distance and an increase in electrode-photoactive layer interface surface area. These improvements contribute to an increase in the power conversion efficiency of photovoltaic devices.

US Patent:

20140216539, Aug 7, 2014

Filed:

Apr 27, 2012

Appl. No.:

14/114398

Inventors:

Danvers E. Johnston - Lakeland FL, US
Jonathan E. Allen - Philadelphia PA, US
Charles T. Black - New York NY, US
Chang-Yong Nam - Coram NY, US

Assignee:

BROOKHAVEN SCIENCE ASSOCIATES, LLC - Upton NY

International Classification:

H01L 31/0224

US Classification:

136256, 438 98

Abstract:

Structures useful for forming contacts to materials having low charge carrier mobility are described. Methods for their formation and use are also described. These structures include interdigitated electrodes capable of making electrical contact to semiconducting materials having low electron and/or whole mobility. In particular, these structures are useful for organic semiconducting devices made with conducting polymers and small molecules. They are also useful for semiconducting devices made with nanocrystalline semiconductors.

US Patent:

20140096483, Apr 10, 2014

Filed:

Oct 4, 2013

Appl. No.:

14/045890

Inventors:

- Upton NY, US
Jonathan E. Allen - Philadelphia PA, US
Edward Baker - Winfield KS, US
Charles T. Black - New York NY, US
Chang-Yong Nam - Coram NY, US

Assignee:

Brookhaven Science Associates, LLC - Upton NY

International Classification:

B65D 6/00

US Classification:

53403, 220500, 53 79

Abstract:

A transfer chamber is disclosed having a first plate with a first surface configured to receive a sample and a second surface containing a groove. The second surface of the first plate surrounds the first surface of the first plate. A second plate has a first surface and a second surface containing a groove. A sealing component is disposed in the groove of the first plate or the second plate. A pivotable link couples the first plate and the second plate. The pivotable link is configured to hold the first plate, the second plate, and the sealing component together to substantially create an air-tight seal between the first surface of the first plate and the second surface of the second plate. The pivotable link is configured to open the seal in response to a pressure differential across the transfer chamber.