Patents by Inventor A. Kaan Kalkan
A. Kaan Kalkan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10494491Abstract: The present invention includes the efficient dispersion and high loading of fillers in a thermoplastic polymer matrix. In a first general embodiment, the present invention includes a method wherein fillers are first synthesized and dispersed in a liquid monomer. The liquid monomer is then polymerized to a solid. The nanofillers may be silver nanoparticle/nanowire fillers. Ethylene glycol may serve as a solvent, reducing agent as well as precursor monomer for polymerization. In a second general embodiment, the present invention includes a method wherein fillers may be separately synthesized (or obtained commercially) and then added and dispersed in a liquid monomer. The liquid monomer is then polymerized to a solid. In a third general embodiment, a composite is synthesized using interfacial polycondensation. This is accomplished by aggressive mixing of two solvents during the reaction. The aggressive mixing forms microdroplets (i.e.Type: GrantFiled: January 19, 2016Date of Patent: December 3, 2019Assignee: The Board of Regents for Oklahoma State UniversityInventors: Ali Kaan Kalkan, Sriharsha Karumuri, Linqi Zhang
-
Publication number: 20170369658Abstract: The present invention includes the efficient dispersion and high loading of fillers in a thermoplastic polymer matrix. In a first general embodiment, the present invention includes a method wherein fillers are first synthesized and dispersed in a liquid monomer. The liquid monomer is then polymerized to a solid. The nanofillers may be silver nanoparticle/nanowire fillers. Ethylene glycol may serve as a solvent, reducing agent as well as precursor monomer for polymerization. In a second general embodiment, the present invention includes a method wherein fillers may be separately synthesized (or obtained commercially) and then added and dispersed in a liquid monomer. The liquid monomer is then polymerized to a solid. In a third general embodiment, a composite is synthesized using interfacial polycondensation. This is accomplished by aggressive mixing of two solvents during the reaction. The aggressive mixing forms microdroplets (i.e.Type: ApplicationFiled: January 19, 2016Publication date: December 28, 2017Applicant: THE BOARD OF REGENTS FOR OKLAHOMA STATE UNIVERSITYInventors: Ali Kaan KALKAN, Sriharsha KARUMURI, Linqi ZHANG
-
Patent number: 9067201Abstract: A method for generating hydrogen is disclosed. The method includes substantially submersing nanowires having metallic nanoparticles into water, exposing the water submerged nanowires to light, and collecting hydrogen gas produced by photolysis from the exposure to light.Type: GrantFiled: October 21, 2010Date of Patent: June 30, 2015Assignee: The Board of Regents For Oklahoma State UniversityInventor: Ali Kaan Kalkan
-
Publication number: 20120205251Abstract: A method for generating hydrogen is disclosed. The method includes substantially submersing nanowires having metallic nanoparticles into water, exposing the water submerged nanowires to light, and collecting hydrogen gas produced by photolysis from the exposure to light.Type: ApplicationFiled: October 21, 2010Publication date: August 16, 2012Applicant: The Board of Regents for Oklahoma State UniversityInventor: Ali Kaan Kalkan
-
Patent number: 7776425Abstract: A non-vacuum-based, non-collodial chemistry-based method of synthesizing metal nanoparticles and nanoparticle-nanostructured material composites obtained by that method. An embodiment of the method of this invention for fabricating a nanoparticle-nanostructured material composite and synthesizing nanoparticles includes preparing a nanostructured/nanotextured material, and, contacting the nanostructured/nanotextured material with a solution. Nanoparticles are synthesized on the nanostructured/nanotextured material as a result of the contact. The method of the present invention can be utilized to fabricate SPR and SERS substrates for sensing and detection. Additional systems based on this approach (e.g., surface plasmon resonance absorption and alloying sensors and nanocatalysts) are described.Type: GrantFiled: January 21, 2004Date of Patent: August 17, 2010Assignee: The Penn State Research FoundationInventors: Ali Kaan Kalkan, Stephen J. Fonash
-
Publication number: 20090229342Abstract: A system and method for measuring an agent in an environment is disclosed. The method includes providing a substrate, coating the substrate with noble metallic nanoparticles, exposing the coated substrate to the environment, and determining the existence of the agent from variation in the hybrid plasmon extinction peak of the metallic nanoparticles.Type: ApplicationFiled: December 31, 2008Publication date: September 17, 2009Inventor: ALI KAAN KALKAN
-
Publication number: 20080286880Abstract: Methods and systems for utilizing metal nanoparticles to enhance optical (UV, visible, and IR, as appropriate) signals from a reporting entity are presented. The methods and systems of this invention do not require the nanoparticles to be attached or adhered to a surface, assembled in a matrix or coated with a spacer coating.Type: ApplicationFiled: July 5, 2005Publication date: November 20, 2008Applicant: The Penn State Research FoundationInventors: Samer Al-Murrani, Stephen J. Fonash, Matthew R. Henry, Ali Kaan Kalkan, Daniel Krissinger, Terry Rager
-
Patent number: 7427526Abstract: This invention uses large surface to volume ratio materials for separation, release layer, and sacrificial material applications. The invention outlines the material concept, application designs, and fabrication methodologies. The invention is demonstrated using deposited column/void network materials as examples of large surface to volume ratio materials. In a number of the specific applications discussed, it is shown that it is advantageous to create structures on a laminate on a mother substrate and then, using the separation layer material approach, to separate this laminate from the mother substrate using the present separation scheme. It is also shown that the present materials have excellent release layer utility. In a number of applications it is also shown how the approach can be used to uniquely form cavities, channels, air-gaps, and related structures in or on various substrates.Type: GrantFiled: April 17, 2001Date of Patent: September 23, 2008Assignee: The Penn State Research FoundationInventors: Stephen J. Fonash, Wook Jun Nam, Youngchul Lee, Kyuhwan Chang, Daniel J. Hayes, A. Kaan Kalkan, Sanghoon Bae
-
Publication number: 20080135826Abstract: This invention presents a novel method to form uniform or heterogeneous, straight or curved and size-controllable nanostructures including, for example, nanotubes, nanowires, nanoribbons, and nanotapes, including SiNW, using a nanochannel template. In the case of semiconductor nanowires, doping can be included during growth. Electrode contacts are present as needed and may be built in to the template structure. Thus completed devices such as diodes, transistors, solar cells, sensors, and transducers are fabricated, contacted, and arrayed as nanowire or nanotape fabrication is completed. Optionally, the template is not removed and may become part of the structure. Nanodevices such as nanotweezers, nanocantilevers, and nanobridges are formed utilizing the processes of the invention.Type: ApplicationFiled: June 27, 2007Publication date: June 12, 2008Inventors: Stephen Fonash, Yinghui Shan, Chih-Yi Peng, Ali Kaan Kalkan, Joseph D. Cuiffi, Daniel Hayes, Paul Butterfoss, Wook Jun Nam
-
Patent number: 7341774Abstract: An electronic or opto-electronic device or a chemical sensor comprising: an interpenetrating network of a nanostructured high surface area to volume ratio film material and an organic/inorganic material forming a nanocomposite. The high surface area to volume film material is obtained onto an electrode substrate first, such that the nano-scale basic elements comprising this film material are embedded in a void matrix while having electrical connectivity with the electrode substrate. For example, the film material may comprise an array of nano-protrusions electrically connected to the electrode substrate and separated by a void matrix. The interpenetrating network is formed by introducing an appropriate organic/inorganic material into the void volume of the high surface area to volume film material. Further electrode(s) are defined onto the film or intra-void material to achieve a certain device.Type: GrantFiled: March 14, 2005Date of Patent: March 11, 2008Assignee: The Penn State Research FoundationInventors: Ali Kaan Kalkan, Stephen J. Fonash
-
Patent number: 7238594Abstract: This invention presents a novel method to form uniform or heterogeneous, straight or curved and size-controllable nanostructures including, for example, nanotubes, nanowires, nanoribbons, and nanotapes, including SiNW, using a nanochannel template. In the case of semiconductor nanowires, doping can be included during growth. Electrode contacts are present as needed and may be built in to the template structure. Thus completed devices such as diodes, transistors, solar cells, sensors, and transducers are fabricated, contacted, and arrayed as nanowire or nanotape fabrication is completed. Optionally, the template is not removed and may become part of the structure. Nanodevices such as nanotweezers, nanocantilevers, and nanobridges are formed utilizing the processes of the invention.Type: GrantFiled: December 13, 2004Date of Patent: July 3, 2007Assignee: The Penn State Research FoundationInventors: Stephen J. Fonash, Yinghui Shan, Chih-Yi Peng, Ali Kaan Kalkan, Joseph D. Cuiffi, Daniel Hayes, Paul Butterfoss, Wook Jun Nam
-
Patent number: 7122790Abstract: There is disclosed an apparatus for providing an ionized analyte for mass analysis by photon desorption comprising at least one layer for contacting an analyte, and a substrate on which said layer is deposited. Upon irradiation of said apparatus, said analyte desorbs and ionizes for analysis by mass spectrometry. The layer or layers of said apparatus comprise a continuous film, a discontinuous film or any combinations thereof.Type: GrantFiled: May 13, 2002Date of Patent: October 17, 2006Assignee: The Penn State Research FoundationInventors: Stephen J. Fonash, Ali Kaan Kalkan, Joseph Cuiffi, Daniel J. Hayes
-
Patent number: 6919119Abstract: An electronic or opto-electronic device or a chemical sensor comprising: an interpenetrating network of a nanostructured high surface area to volume ratio film material and an organic/inorganic material forming a nanocomposite. The high surface area to volume film material is obtained onto an electrode substrate first, such that the nano-scale basic elements comprising this film material are embedded in a void matrix while having electrical connectivity with the electrode substrate. For example, the film material may comprise an array of nano-protrusions electrically connected to the electrode substrate and separated by a void matrix. The interpenetrating network is formed by introducing an appropriate organic/inorganic material into the void volume of the high surface area to volume film material. Further electrode(s) are defined onto the film or intra-void material to achieve a certain device.Type: GrantFiled: June 8, 2002Date of Patent: July 19, 2005Assignee: The Penn State Research FoundationInventors: Ali Kaan Kalkan, Stephen J. Fonash
-
Patent number: 6627842Abstract: The method of the invention produces protruding features on a glass layer. Initially, a conductive layer is applied to the glass layer and is coupled to a source of reference potential. This conductive layer prevents a build-up of electrons in the glass layer when it is exposed to an electron beam. Thereafter, an electron beam is directed at combined layers in areas where protruding features are to be produced. The energy, current density and duration of application of the electron beam are controlled so as to create a melt/softened region within the glass layer. Such softening and differences in expansion rates between the softened glass and the surrounding glass causes a protruding feature to appear on the surface of the glass layer.Type: GrantFiled: August 13, 1999Date of Patent: September 30, 2003Assignee: The Penn State Research FoundationInventors: Stephen J. Fonash, A. Kaan Kalkan
-
Publication number: 20020192441Abstract: An electronic or opto-electronic device or a chemical sensor comprising: an interpenetrating network of a nanostructured high surface area to volume ratio film material and an organic/inorganic material forming a nanocomposite. The high surface area to volume film material is obtained onto an electrode substrate first, such that the nano-scale basic elements comprising this film material are embedded in a void matrix while having electrical connectivity with the electrode substrate. For example, the film material may comprise an array of nano-protrusions electrically connected to the electrode substrate and separated by a void matrix. The interpenetrating network is formed by introducing an appropriate organic/inorganic material into the void volume of the high surface area to volume film material. Further electrode(s) are defined onto the film or intra-void material to achieve a certain device.Type: ApplicationFiled: June 8, 2002Publication date: December 19, 2002Applicant: The Penn State Research FoundationInventors: Ali Kaan Kalkan, Stephen J. Fonash
-
Publication number: 20020187312Abstract: There is disclosed an apparatus for providing an ionized analyte for mass analysis by photon desorption comprising at least one layer for contacting an analyte, and a substrate on which said layer is deposited. Upon irradiation of said apparatus, said analyte desorbs and ionizes for analysis by mass spectrometry. The layer or layers of said apparatus comprise a continuous film, a discontinuous film or any combinations thereof.Type: ApplicationFiled: May 13, 2002Publication date: December 12, 2002Applicant: The Penn State Research FoundationInventors: Stephen J. Fonash, Ali Kaan Kalkan, Joseph Cuiffi, Daniel J. Hayes
-
Patent number: 6399177Abstract: A novel porous film is disclosed comprising a network of silicon columns in a continuous void which may be fabricated using high density plasma deposition at low temperatures, i.e., less than about 250° C. This silicon film is a two-dimensional nano-sized array of rodlike columns. This void-column morphology can be controlled with deposition conditions and the porosity can be varied up to 90%. The simultaneous use of low temperature deposition and etching in the plasma approach utilized, allows for the unique opportunity of obtaining columnar structure, a continuous void, and polycrystalline column composition at the same time. Unique devices may be fabricated using this porous continuous film by plasma deposition of this film on a glass, metal foil, insulator or plastic substrates.Type: GrantFiled: May 30, 2000Date of Patent: June 4, 2002Assignee: The Penn State Research FoundationInventors: Stephen J. Fonash, Ali Kaan Kalkan, Sanghoon Bae
-
Patent number: 6361912Abstract: A metal-containing toner is electrostatically printed on a semiconductor surface. Subsequently, this surface is annealed to achieve certain material modifications selectively at the regions where the toner is applied. If the toner contains a crystallization-catalyst metal, such as, Pd, Ni, Pt, and Cr, and is printed on an amorphous semiconductor film, annealing results in conversion of the printed regions to polycrystalline. If the metal-containing toner is printed on a silicon surface (i.e., amorphous/poly-Si layer or Si wafer) the printed regions are selectively converted to a metal-silicide (with the sufficient amount of metal applied on these regions) upon annealing.Type: GrantFiled: January 8, 2001Date of Patent: March 26, 2002Assignee: The Penn State Research FoundationInventors: Stephen J. Fonash, Ali Kaan Kalkan, Robert H. Detig
-
Publication number: 20020020053Abstract: This invention uses large surface to volume ratio materials for separation, release layer, and sacrificial material applications. The invention outlines the material concept, application designs, and fabrication methodologies. The invention is demonstrated using deposited column/void network materials as examples of large surface to volume ratio materials. In a number of the specific applications discussed, it is shown that it is advantageous to create structures on a laminate on a mother substrate and then, using the separation layer material approach, to separate this laminate from the mother substrate using the present separation scheme. It is also shown that the present materials have excellent release layer utility. In a number of applications it is also shown how the approach can be used to uniquely form cavities, channels, air-gaps, and related structures in or on various substrates.Type: ApplicationFiled: April 17, 2001Publication date: February 21, 2002Inventors: Stephen J. Fonash, Wook Jun Nam, Youngchul Lee, Kyuhwan Chang, Daniel J. Hayes, A. Kaan Kalkan, Sanghoon Bae
-
Publication number: 20010033985Abstract: A metal-containing toner is electrostatically printed on a semiconductor surface. Subsequently, this surface is annealed to achieve certain material modifications selectively at the regions where the toner is applied. If the toner contains a crystallization-catalyst metal, such as, Pd, Ni, Pt, and Cr, and is printed on an amorphous semiconductor film, annealing results in conversion of the printed regions to polycrystalline. If the metal-containing toner is printed on a silicon surface (i.e., amorphous/poly-Si layer or Si wafer) the printed regions are selectively converted to a metal-silicide (with the sufficient amount of metal applied on these regions) upon annealing.Type: ApplicationFiled: January 8, 2001Publication date: October 25, 2001Applicant: The Penn State Research FoundationInventors: Stephen J. Fonash, Ali Kaan Kalkan, Robert H. Detig