Abstract: A method for an improved doping process allows for improved control of doping concentrations on a substrate. The method may comprise printing a polymeric material on a substrate in a desired pattern; and depositing a barrier layer on the substrate with a liquid phase deposition process, wherein a pattern of the barrier layer is defined by the polymeric material. The method further comprises removing the polymeric material, and doping the substrate. The barrier layer substantially prevents or reduces doping of the substrate to allow patterned doping regions to be formed on the substrate. The method can be repeated to allow additional doping regions to be formed on the substrate.

Abstract: Systems and methods for producing nanoscale textured low reflectivity surfaces may be utilized to fabricate solar cells. A substrate may be patterned with a resist prior to an etching process that produces a nanoscale texture on the surface of the substrate. Additionally, the substrate may be subjected to a dopant diffusion process. Prior to dopant diffusion, the substrate may be optionally subjected to liquid phase deposition to deposit a material that allows for patterned doping. The order of the nanoscale texture etching and dopant diffusion may be modified as desired to produce post-nano emitters or pre-nano emitters.

Abstract: Systems and methods for producing nanoscale textured low reflectivity surfaces may be utilized to fabricate solar cells. A substrate may be patterned with a resist prior to an etching process that produces a nanoscale texture on the surface of the substrate. Additionally, the substrate may be subjected to a dopant diffusion process. Prior to dopant diffusion, the substrate may be optionally subjected to liquid phase deposition to deposit a material that allows for patterned doping. The order of the nanoscale texture etching and dopant diffusion may be modified as desired to produce post-nano emitters or pre-nano emitters.

Abstract: A method for an improved doping process allows for improved control of doping concentrations on a substrate. The method may comprise printing a polymeric material on a substrate in a desired pattern; and depositing a barrier layer on the substrate with a liquid phase deposition process, wherein a pattern of the barrier layer is defined by the polymeric material. The method further comprises removing the polymeric material, and doping the substrate. The barrier layer substantially prevents or reduces doping of the substrate to allow patterned doping regions to be formed on the substrate. The method can be repeated to allow additional doping regions to be formed on the substrate.

Abstract: A secure enclosure for resisting attacks using explosives. The secure enclosure has a body defining an opening and a door leaf hingeably coupled to the body for securely closing the opening. The body and door leaf define a cavity in which valuable items may be stored. The secure enclosure also defines a plurality of frangible portions. Each frangible portion comprises a weakened perimeter so that the frangible portions are ejected by the rapid build-up of pressure when an explosion occurs within the secure enclosure, thereby reducing the pressure within the secure enclosure and preserving the integrity of the body and door.

Abstract: A nanoparticle coated with a semiconducting material and a method for making the same. In one embodiment, the method comprises making a semiconductor coated nanoparticle comprising a layer of at least one semiconducting material covering at least a portion of at least one surface of a nanoparticle, comprising: (A) dispersing the nanoparticle under suitable conditions to provide a dispersed nanoparticle; and (B) depositing at least one semiconducting material under suitable conditions onto at least one surface of the dispersed nanoparticle to produce the semiconductor coated nanoparticle. In other embodiments, the nanoparticle comprises a fullerene. Further embodiments include the semiconducting material comprising CdS or CdSe.

Abstract: A field effect transistor and a method for making the same. In one embodiment, the field effect transistor comprises a source; a drain; a gate; at least one carbon nanotube on the gate; and a dielectric layer that coats the gate and a portion of the at least one carbon nanotube, wherein the at least one carbon nanotube has an exposed portion that is not coated with the dielectric layer, and wherein the exposed portion is functionalized with at least one indicator molecule.

Abstract: An automated teller machine (10) having a secure enclosure (26); a lock (30) for securing the secure enclosure (26) and a processor (24) for controlling teller machine functionality and additionally the lock (30).

Abstract: A child-resistant closure prevents a toddler or other young child from unscrewing the top off from a beverage container, such as a milk bottle or covered sipping cup, and spilling its contents on furniture or other inappropriate locations. The child-resistant closure prevents ugly staining of clothes or furniture by difficult to wash beverages, such as grape juice. The child-resistant closure for a beverage container includes an inner screw cap which is threadably mountable on the beverage container, such as the milk bottle with a nipple or the sipping cup. An outer operating ring cap is mounted on the inner cap. The outer operating ring cap has a circumferential retaining rim on a lower end thereof to retain the inner cap within the outer cap.

Abstract: A safe, for example for an automated teller machine, (90) comprises a steel body (10) of open-floor construction and having horizontal mounting bars (22,24,26) welded to the inside of the body walls (12,14,16); either a detachable steel floor (30) or an open-top steel container (40) can be attached to the mounting bars by bolts (23) accessible only from inside the container. The volume of the safe can therefore be increased by an on-site modification to allow an additional cassette (102) to be provided.

Abstract: The invention relates to a cash dispensing apparatus having a purge bin (84) into which bank notes (24) may be deposited as a result of an irregularity in the picking or transportation of the notes or as a result of a user failing to remove all of the notes. The invention is characterized by depositing a separating sheet (25) in the purge bin (84) subsequent to each purge operation for the purpose of separating the bank note or notes (24) deposited in the purge bin (84) in one purge operation from the note or notes (24) deposited in the purge bin (84) in the next purge operation.