Patents by Inventor Zhenan Bao

Zhenan Bao 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: 7910736
    Abstract: A method for producing an organic field-effect transistor, comprising the steps of: a) providing a substrate comprising a gate structure, a source electrode and a drain electrode located on the substrate, and b) applying an n-type organic semiconducting compound to the area of the substrate where the gate structure, the source electrode and the drain electrode are located, wherein the n-type organic semiconducting compound is selected from the group consisting of compounds of the formula I wherein R1, R2, R3and R4are independently hydrogen, chlorine or bromine, with the proviso that at least one of these radicals is not hydrogen, Y1 is O or NRa, wherein Ra is hydrogen or an organyl residue, Y2 is O or NRb, wherein Rb is hydrogen or an organyl residue, Z1, Z2, Z3 and Z4 are O, where, in the case that Y1 is NRa, one of the residues Z1 and Z2 may be a NRc group, where Ra and Rc together are a bridging group having 2 to 5 atoms between the terminal bonds, where, in the case that Y2 is NRb, one of the
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: March 22, 2011
    Assignees: BASF Aktiengesellschaft, The Board of Trustees of the Lenand Stanford Junior University
    Inventors: Martin Koenemann, Peter Erk, Zhenan Bao, Mang-Mang Ling
  • Patent number: 7863603
    Abstract: Cross-linked dielectric layers are facilitated. According to an example embodiment, an organic polymer is mixed with a reaction-stabilized cross-linking material. The organic polymer is cross-linked with the reaction-stabilized cross-linking material to form a dielectric layer.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: January 4, 2011
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Zhenan Bao, Mark E. Roberts
  • Patent number: 7855121
    Abstract: Provided are a method of forming an organic semiconductor thin film and a method of manufacturing a semiconductor device using the. According to example embodiments, a method of forming an organic semiconductor thin film at least may include exposing a lower substrate coated with an organic semiconductor solution using a method of generating a shearing stress to the portion of the lower substrate coated with the organic semiconductor solution. A guide structure may be formed adjacent to the organic semiconductor solution.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 21, 2010
    Assignees: Samsung Electronics Co., Ltd., The Board of Trustees of the Laland Stanford Junior University
    Inventors: Do Hwan Kim, Sangyoon Lee, Hector Alejandro Becerril Garcia, Mark Roberts, Zhenan Bao, Zihong Liu
  • Publication number: 20100308309
    Abstract: Organic semiconductor material can be patterned from a solution onto a substrate by selectively wetting the substrate with the solution while applying a mechanical disturbance (such as stirring the solution while the substrate is immersed, or wiping the solution on the substrate). The organic semiconductor material can then be precipitated out of the solution, for example to bridge gaps between source and drain electrodes to form transistor devices. In some embodiments, the solution containing the organic semiconductor material can be mixed in an immiscible host liquid. This can allow the use of higher concentration solutions while also using less of the organic semiconductor material.
    Type: Application
    Filed: November 20, 2008
    Publication date: December 9, 2010
    Inventors: Stefan Christian Bernhardt Mannsfeld, Armon Sharei, Zhenan Bao
  • Publication number: 20100248421
    Abstract: Provided are a method of forming an organic semiconductor thin film and a method of manufacturing a semiconductor device using the. According to example embodiments, a method of forming an organic semiconductor thin film at least may include exposing a lower substrate coated with an organic semiconductor solution using a method of generating a shearing stress to the portion of the lower substrate coated with the organic semiconductor solution. A guide structure may be formed adjacent to the organic semiconductor solution.
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
    Inventors: Do Hwan Kim, Sangyoon Lee, Hector Alejandro Becerril Garcia, Mark Roberts, Zhenan Bao, Zihong Liu
  • Patent number: 7795145
    Abstract: A method of patterning the surface of a substrate with at least one organic semiconducting compound including: (a) providing a stamp having a surface including a plurality of indentations formed therein defining an indentation pattern contiguous with a stamping surface and defining a stamping pattern, (b) coating the stamping surface with at least one compound (C1) capable of binding to the surface of the substrate and at least one organic semiconducting compound (S), (c) contacting at least a portion of the surface of a substrate with the stamping surface to allow deposition of the compound (C1) on the substrate, (d) removing the stamping surface to provide a pattern of binding sites on the surface of the substrate, (e) applying a plurality of crystallites of the organic semiconducting compound (S) to the surface of the substrate to bind at least a portion of the applied crystallites to the binding sites on the surface of the substrate.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: September 14, 2010
    Assignees: BASF Aktiengesellschaft, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Marcos Gomez, Peter Erk, Frauke Richter, Zhenan Bao, Shuhong Liu
  • Patent number: 7767998
    Abstract: The present invention provides apparatus and a method of fabricating the apparatus. The apparatus includes a substrate having a surface and an organic field-effect transistor (OFET) located adjacent the surface of the substrate. The OFET comprising a gate, a channel, a source electrode, and a drain electrode. The channel comprises a densified layer of organic molecules with conjugated multiple bonds, axes of the organic molecules being oriented substantially normal to the surface.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: August 3, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Zhenan Bao
  • Publication number: 20100171108
    Abstract: The present invention relates to the use of N,N?-bis(1,1-dihydroperfluoro-C3-C5-alkyl)perylene-3,4:9,10-tetracarboxylic diimides as charge transport materials or exciton transport materials.
    Type: Application
    Filed: June 20, 2008
    Publication date: July 8, 2010
    Applicants: BASF SE, The Board of Trust. of the Lelnd Stanf. Jun. Univ.
    Inventors: Martin Koenemann, Frank Wuerthner, Ruediger Schmidt, Zhenan Bao, Joon Hak Oh
  • Patent number: 7704784
    Abstract: Semiconductor apparatus comprising: a substrate having a substrate surface; a layer of a first material overlying a first region of the substrate surface; a layer of a semiconductor overlying the layer of first material and overlying a second region of the substrate surface; a first region of the layer of semiconductor, overlying the layer of first material and having a first conductivity; a second region of the layer of semiconductor, overlying the second region of the substrate surface and having a second conductivity; and the first conductivity being substantially different from the second conductivity. Such semiconductor apparatus further comprising a layer of a second material overlying the second region of the substrate surface, the second region of the layer of semiconductor overlying the layer of the second material.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: April 27, 2010
    Assignees: Lucent Technologies, Inc., E.I. du Pont de Nemours and Company
    Inventors: Zhenan Bao, Howard Edan Katz, Jeffrey Scott Meth
  • Publication number: 20100001255
    Abstract: Nanotube electronic devices exhibit selective affinity to disparate nanotube types. According to an example embodiment, a semiconductor device exhibits a treated substrate that selectively interacts (e.g., chemically) with nanotubes of a first type, relative to nanotubes of a second type, the respective types including semiconducting-type and metallic-type nanotubes. The selective interaction is used to set device configuration characteristics based upon the nanotube type. This selective-interaction approach can be used to set the type, and/or characteristics of nanotubes in the device.
    Type: Application
    Filed: June 26, 2009
    Publication date: January 7, 2010
    Inventors: Zhenan Bao, Melburne Lemieux, Justin P. Opatkiewicz, Soumendra N. Barman
  • Publication number: 20090297868
    Abstract: A method for forming a self-organized monomolecular film, including at least: dissolving an alkylsilane compound having at least an alkoxysilane group or a chlorosilane group at one end of a molecule in an organic solvent having a dielectric constant of 3.0 or more to 6.0 or less to obtain a solution; subsequently coating the solution on a base material or immersing the base material into the solution; and subsequently drying the solution located on the base material.
    Type: Application
    Filed: May 27, 2008
    Publication date: December 3, 2009
    Applicants: Toppan Printing Co., Ltd., The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yutaka Ito, Zhenan Bao, Jason Locklin
  • Publication number: 20090294760
    Abstract: Organic semiconductor devices exhibit desirable mobility characteristics. In connection with various example embodiments, a monolayer of methyl-terminated molecules exhibits density characteristics that are sufficient to promote two-dimensional growth of organic semiconductor material formed thereupon. In some applications, the methyl-terminated molecules are sufficiently dense to dominate inter-layer interactions between layers of the organic semiconductor material.
    Type: Application
    Filed: May 27, 2008
    Publication date: December 3, 2009
    Inventors: Ajay A. Virkar, Stefan Christian Bernhardt Mannsfeld, Zhenan Bao
  • Publication number: 20090236591
    Abstract: The present invention relates to N,N?-bis(fluorophenylalkyl)-substituted perylene-3,4:9,10-tetracarboximides, their preparation and their use as charge transport materials, exciton transport materials or emitter materials.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 24, 2009
    Applicants: BASF SE, The Board of Trust. of the Lelnd Stanf. Jun. Univ.
    Inventors: Martin Konemann, Rudiger Schmidt, Frank Wurthner, Zhenan Bao, Joon Hak Oh
  • Patent number: 7569416
    Abstract: The present invention provides an apparatus and a method of fabricating the apparatus. The apparatus comprises a substrate having a planar surface and first and second electrodes located on the planar surface. The first electrode has a top surface and a lateral surface, and the lateral surface has an edge near or in contact with the substrate. An electrode insulating layer is located on the top surface and a self-assembled layer located on the lateral surface. The second electrode is in contact with both the self-assembled layer and the electrode insulating layer.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: August 4, 2009
    Assignees: Alcatel-Lucent USA Inc., Office of Technology Licensing & Intl Property
    Inventors: Zhenan Bao, Jie Zheng, James C. Sturm, Troy Graves-Abe
  • Patent number: 7534646
    Abstract: The present invention provides an organic field effect transistor and a method of fabricating the transistor. The transistor includes a semiconductive film comprising organic molecules. Probe molecules capable of binding to target molecules are coupled to an outer surface of the semiconductive film such that the interior of the film being substantially free of the probe molecules.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: May 19, 2009
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Zhenan Bao, Bernard Yurke
  • Publication number: 20090078312
    Abstract: The present invention relates to a process for producing a substrate coated with rylenetetracarboximides, in which a substrate is treated with an N,N?-bisubstituted rylenetetracarboximide and the treated substrate is heated to a temperature at which the N,N?-bisubstituted rylenetetracarboximide is converted to the corresponding N,N?-unsubstituted compound. The present invention further relates to semiconductor units, organic solar cells, excitonic solar cells and organic light-emitting diodes which comprise a substrate produced by this process. The present invention further relates to a process for preparing N,N?-unsubstituted rylenetetracarboximides, in which the corresponding N,N?-bisubstituted rylenetetracarboximides are provided and heated to a temperature at which these compounds are converted to the corresponding N,N?-unsubstituted compounds.
    Type: Application
    Filed: September 17, 2008
    Publication date: March 26, 2009
    Applicants: BASF SE, The board of Trustees of the Leland Stan. Jr. Uni.
    Inventors: Martin Konemann, Torsten Noe, Zhenan Bao, Joon Hak Oh
  • Patent number: 7470574
    Abstract: The present invention provides a dual organic field-effect transistor (OFET) structure and a method of fabricating the structure. The dual OFET structure includes an n-type organic semiconductor layer and a p-type organic semiconductor layer in contact with each other along an interface and forming a stack. The dual OFET structure also includes a source electrode and a drain electrode, the source and drain electrodes being in contact with one of the organic semiconductor layers. The dual OFET structure further includes first and second gate structures located on opposite sides of the stack. The first gate structure is configured to control a channel region of the n-type organic semiconductor layer, and the second gate structure is configured to control a channel region of the p-type organic semiconductor layer.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: December 30, 2008
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Zhenan Bao, Evert-Jan Borkent, Dawen Li
  • Patent number: 7439096
    Abstract: An encapsulated semiconductor device and method wherein an encapsulant material is deposited on the device in an environment that enhances device performance. Illustrative encapsulant materials are organic polymers, silicon polymers and metal/polymer-layered encapsulants. Encapsulant formation environments may include inert, reducing and ammonia gas environment. Further disclosed are an encapsulated transistor and a semiconductor device.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: October 21, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Kirk W. Baldwin, Zhenan Bao, Peter Mach, John A. Rogers
  • Publication number: 20080234424
    Abstract: A carbon nanotube composite includes a carbon nanotube and a conjugated polymer. The carbon nanotube composite has a liquid crystalline property and a thin film prepared by rubbing-treating a solution of the carbon nanotube composite has a good alignment property and thus can be used in manufacturing carbon nanotube (CNT) thin film transistors (TFTs).
    Type: Application
    Filed: August 10, 2007
    Publication date: September 25, 2008
    Inventors: Hang-Woo Lee, Yong-Wan Jin, Jong-Min Kim, Zhenan Bao
  • Publication number: 20080142793
    Abstract: Organic semiconducting devices and applications exhibit high performance largely due to a treatment substrate interacting with an asymmetric linear compound. According to an example, an organic compound arrangement includes a treated substrate and an asymmetric linear compound on the treated substrate. The compound includes an acene and a thiophene unit fused to the acene and exhibits high mobility and, in some applications, a correspondingly high on/off ratio. The compound arrangement is suitable for implementation with a variety of semiconducting applications, such as thin-film applications, solar applications and transistor applications.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 19, 2008
    Inventors: Ming L. Tang, Zhenan Bao, Toshihiro Okamoto