Patents by Inventor Laurence Lutsen
Laurence Lutsen 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: 11557440Abstract: In a first aspect, the present invention relates to a perovskite material comprising negatively charged layers alternated with and neutralized by positively charged layers; the negatively charged layers having a general formula selected from the list consisting of: Ln?1MnX3n+1, LnMnX3n+2, and Ln?1M?nX3n+3, and the positively charged layers comprising: one or more organic ammonium cations independently selected from monovalent cations Q and divalent cations Q?, or a polyvalent cationic conjugated organic polymer Z, wherein Q, Q? and Z comprise each a ?-conjugated system in which at least 8 and preferably at least 10 atoms participate, L is a monovalent cation, Mn are n independently selected metal cations averaging a valence of two, M?n are n independently selected metal cations averaging a valence equal to 2+2/n, X is a monovalent anion, and n is larger than 1.Type: GrantFiled: January 16, 2020Date of Patent: January 17, 2023Assignees: IMEC vzw, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande
-
Publication number: 20200152395Abstract: In a first aspect, the present invention relates to a perovskite material comprising negatively charged layers alternated with and neutralized by positively charged layers; the negatively charged layers having a general formula selected from the list consisting of: Ln?1MnX3n+1, LnMnX3n+2, and Ln?1M?nX3n+3, and the positively charged layers comprising: one or more organic ammonium cations independently selected from monovalent cations Q and divalent cations Q?, or a polyvalent cationic conjugated organic polymer Z, wherein Q, Q? and Z comprise each a ?-conjugated system in which at least 8 and preferably at least 10 atoms participate, L is a monovalent cation, Mn are n independently selected metal cations averaging a valence of two, M?n are n independently selected metal cations averaging a valence equal to 2+2/n, X is a monovalent anion, and n is larger than 1.Type: ApplicationFiled: January 16, 2020Publication date: May 14, 2020Inventors: Laurence Lutsen, Dirk Vanderzande
-
Patent number: 8765882Abstract: New monomers, polymers, and blends of polymers with an electron acceptor are provided, e.g., for use in a photovoltaic device. The electron acceptor can be a fullerene derivative and the polymer can comprise monomer units according to the formula: wherein L? is L-C(O)O-J, L-C(O)NR?-J, L-OCO-J?, L-NR?CO-J?, L-SCO-J?, L-O-J, L-S-J, L-Se-J, L-NR?-J or L-CN; L is a linear or branched alkylene group having from 1 to 10 carbon atoms; J is a hydrogen atom or a linear or branched alkyl group having from 1 to 4 carbon atoms; J? is a group having from 1 to 10 carbon atoms, being saturated or unsaturated, linear or branched, optionally comprising a phenyl unit; and R? is a hydrogen atom or a linear or branched alkyl group having from 1 to 4 carbon atoms.Type: GrantFiled: June 8, 2012Date of Patent: July 1, 2014Assignees: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande, Bert Campo
-
Patent number: 8518735Abstract: The present invention relates in a first aspect to methods for producing a nanofibres-containing layer for use as an active layer in an organic electronic device. The method comprising the steps of: a) first heating up a nanofibre-forming polymer in a solvent at a temperature T1, then b) cooling said solution down to a temperature T2 at a rate less than 40° C./h thereby forming a dispersion comprising crystalline nanofibres of said nanofibre-forming polymer, then c) raising the temperature of said dispersion to a temperature T3 higher than T2, but lower than said temperature T1, and then d) coating said dispersion on a substrate at said temperature T3 thereby forming a layer for use as an element of said organic electronic device, wherein before step (d), a step of adding an electron acceptor to the solution or dispersion is performed.Type: GrantFiled: December 18, 2009Date of Patent: August 27, 2013Assignees: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Wibren Oosterbaan, Sabine Bertho, Dirk Vanderzande
-
Patent number: 8449985Abstract: Methods are provided for obtaining soluble or insoluble poly(iptycenylene vinylene) homo- and co-polymers via a soluble precursor polymer. The polymers obtained by the methods can be used in electronic or opto-electronic devices, e.g., chemosensors.Type: GrantFiled: May 4, 2009Date of Patent: May 28, 2013Assignees: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande
-
Patent number: 8450604Abstract: This invention provides monomeric compounds represented by the structural formula (I) or the structural formula (II) which can be polymerized into crosslinkable polymers useful for producing opto-electronic devices.Type: GrantFiled: April 3, 2009Date of Patent: May 28, 2013Assignees: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande, Bert Campo
-
Patent number: 8329923Abstract: The present preferred embodiments relate to a method for the synthesis of a compound having the following general formula: the method comprising the step of reacting, in presence of a diprotic acid having a negative pKa, a compound having the general formula: wherein R1 and R2 are organic groups and wherein X and Y are independently selected from the group consisting of hydrogen, chloro, bromo, iodo, boronic acid, boronate esters, borane, pseudohalogen and organotin. It further relates to compounds so obtained and to compounds resulting from the ring closure of compound (II).Type: GrantFiled: February 16, 2011Date of Patent: December 11, 2012Assignees: IMEC, Universiteit HasseltInventors: Dirk Vanderzande, Laurence Lutsen, Sarah Van Mierloo
-
Publication number: 20120279569Abstract: New monomers, polymers, and blends of polymers with an electron acceptor are provided, e.g., for use in a photovoltaic device. The electron acceptor can be a fullerene derivative and the polymer can comprise monomer units according to the formula: wherein L? is L-C(O)O-J, L-C(O)NR?-J, L-OCO-J?, L-NR?CO-J?, L-SCO-J?, L-O-J, L-S-J, L-Se-J, L-NR?-J or L-CN; L is a linear or branched alkylene group having from 1 to 10 carbon atoms; J is a hydrogen atom or a linear or branched alkyl group having from 1 to 4 carbon atoms; J? is a group having from 1 to 10 carbon atoms, being saturated or unsaturated, linear or branched, optionally comprising a phenyl unit; and R? is a hydrogen atom or a linear or branched alkyl group having from 1 to 4 carbon atoms.Type: ApplicationFiled: June 8, 2012Publication date: November 8, 2012Applicants: Universiteit Hasselt, IIMECInventors: Laurence Lutsen, Dirk Vanderzande, Bert Campo
-
Patent number: 8173267Abstract: A method is provided for modifying a poly(arylene vinylene) or poly(heteroarylene vinylene) precursor polymer having dithiocarbamate moieties by reacting it with an acid and further optionally reacting the acid-modified polymer with a nucleophilic agent. Also provided are novel polymers and copolymers bearing nucleophilic side groups which are useful as components of electronic devices, e.g. in the form of thin layers.Type: GrantFiled: February 5, 2008Date of Patent: May 8, 2012Assignees: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vandezande, Fateme Banishoeib
-
Patent number: 8173999Abstract: A method is provided for modifying a poly(arylene vinylene) or poly(heteroarylene vinylene) precursor polymer having dithiocarbamate moieties by reacting it with an acid and further optionally reacting the acid-modified polymer with a nucleophillic agent. Also provided are novel polymers and copolymers bearing nucleophillic side groups which are useful as components of electronic devices, e.g. in the form of thin layers.Type: GrantFiled: July 31, 2008Date of Patent: May 8, 2012Assignees: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande, Fateme Banishoeib
-
Publication number: 20110313175Abstract: The present preferred embodiments relate to a method for the synthesis of a compound having the following general formula: the method comprising the step of reacting, in presence of a diprotic acid having a negative pKa, a compound having the general formula: wherein R1 and R2 are organic groups and wherein X and Y are independently selected from the group consisting of hydrogen, chloro, bromo, iodo, boronic acid, boronate esters, borane, pseudohalogen and organotin. It further relates to compounds so obtained and to compounds resulting from the ring closure of compound (II).Type: ApplicationFiled: February 16, 2011Publication date: December 22, 2011Applicants: Universiteit Hasselt, IMECInventors: Dirk Vanderzande, Laurence Lutsen, Sarah Van Mierloo
-
Publication number: 20110237020Abstract: The present invention relates in a first aspect to methods for producing a nanofibres-containing layer for use as an active layer in an organic electronic device. The method comprising the steps of: a) first heating up a nanofibre-forming polymer in a solvent at a temperature T1, then b) cooling said solution down to a temperature T2 at a rate less than 40° C./h thereby forming a dispersion comprising crystalline nanofibres of said nanofibre-forming polymer, then c) raising the temperature of said dispersion to a temperature T3 higher than T2, but lower than said temperature T1, and then d) coating said dispersion on a substrate at said temperature T3 thereby forming a layer for use as an element of said organic electronic device, wherein before step (d), a step of adding an electron acceptor to the solution or dispersion is performed.Type: ApplicationFiled: December 18, 2009Publication date: September 29, 2011Applicants: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Wilbren Oosterbaan, Sabine Bertho, Dirk Vanderzande
-
Publication number: 20110130522Abstract: This invention provides monomeric compounds represented by the structural formula (I) or the structural formula (II) which can be polymerized into crosslinkable polymers useful for producing opto-electronic devices.Type: ApplicationFiled: April 3, 2009Publication date: June 2, 2011Applicant: Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande, Bert Campo
-
Patent number: 7666978Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).Type: GrantFiled: February 18, 2009Date of Patent: February 23, 2010Assignees: IMEC, Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
-
Patent number: 7649048Abstract: The present invention provides a conjugated polymer with provided thereon at least one molecular imprinted polymer (MIP) and a method for preparing such a polymer. The conjugate polymer provided with at least one MIP according to the invention combines both transducer properties and selectivity properties in one single material. Therefore, it is particularly suitable for use in chemo- or bio-sensors. Furthermore, the conjugate polymer provided with at least one MIP may be used in electronic devices and in chromatography, molecular recognition, selective sample enrichment or in catalysis.Type: GrantFiled: October 11, 2005Date of Patent: January 19, 2010Assignees: IMEC, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande
-
Publication number: 20090270575Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).Type: ApplicationFiled: February 18, 2009Publication date: October 29, 2009Applicants: Interuniversitair Microelektronica Centrum (IMEC), Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
-
Publication number: 20090246532Abstract: Methods are provided for obtaining soluble or insoluble poly(iptycenylene vinylene) homo- and co-polymers via a soluble precursor polymer. The polymers obtained by the methods can be used in electronic or opto-electronic devices, e.g., chemosensors.Type: ApplicationFiled: May 4, 2009Publication date: October 1, 2009Applicants: Interuniversitair Microelektronica Centrum, Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande
-
Publication number: 20090183767Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).Type: ApplicationFiled: March 17, 2009Publication date: July 23, 2009Applicants: Interuniversitair Microelektronica Centrum (IMEC), Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
-
Patent number: 7511116Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).Type: GrantFiled: July 18, 2007Date of Patent: March 31, 2009Assignees: Interuniversitair Microelektronica Centrum (IMEC), Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
-
Publication number: 20090035597Abstract: A method is provided for modifying a poly(arylene vinylene) or poly(heteroarylene vinylene) precursor polymer having dithiocarbamate moieties by reacting it with an acid and further optionally reacting the acid-modified polymer with a nucleophilic agent. Also provided are novel polymers and copolymers bearing nucleophilic side groups which are useful as components of electronic devices, e.g. in the form of thin layers.Type: ApplicationFiled: February 5, 2008Publication date: February 5, 2009Applicants: Interuniversitair Microelektronica Centrum (IMEC), Universiteit HasseltInventors: Laurence Lutsen, Dirk Vanderzande, Fanteme Banishoeib