GENERATOR OF ACOUSTIC WAVES
    81.
    发明申请

    公开(公告)号:US20230028192A1

    公开(公告)日:2023-01-26

    申请号:US17778603

    申请日:2020-11-20

    申请人: ENI S.P.A.

    IPC分类号: G01V1/133 G01V1/143

    摘要: A generator of acoustic waves for submarine environments has a hollow body that extends along an axis delimited by a first closed end and by a second end that is provided with an acoustic diffuser member. The hollow body has a first cylindrical portion delimited by the first end that houses a first piston and a second cylindrical portion delimited by the second end that houses a second piston in a freely axially sliding manner. The second piston is mechanically free from the first piston and has a face that faces the acoustic diffuser member. An impulsive actuator is configured together with the first piston to move the first piston towards the second piston. An adjustor for a longitudinal motion of the second piston is arranged between the first piston and the second piston.

    DIARYLOXYBENZOHETERODIAZOLE COMPOUNDS DI-SUBSTITUTED WITH THIENOTHIOPHENIC GROUPS

    公开(公告)号:US20220399509A1

    公开(公告)日:2022-12-15

    申请号:US17775900

    申请日:2020-11-12

    申请人: ENI S.P.A.

    摘要: There is a diaryloxybenzoheterodiazole compound di-substituted with thienothiophenic groups having general formula (Ia): The diaryloxybenzoheterodiazole compound di-substituted with thienothiophenic groups having general formula (Ia) can be advantageously used as a spectrum converter in luminescent solar concentrators (LSCS) capable, in turn, of improving the performance of photovoltaic devices (or solar devices), selected for example, between photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), either on a rigid support, or on a flexible support. More particularly, said photovoltaic devices (or solar devices) can be advantageously used in the construction of greenhouses.

    Conjugated polymers including an indacen-4-one derivative, procedure for their preparation and photovoltaic devices comprising the same

    公开(公告)号:US11430957B2

    公开(公告)日:2022-08-30

    申请号:US17277897

    申请日:2019-09-18

    申请人: ENI S.P.A.

    发明人: Gabriele Bianchi

    IPC分类号: H01L51/00 C08G61/12 H01L51/42

    摘要: There is a conjugated polymer having a derivative of indacen-4-one having general formula (I): wherein: R1 and R2, same or different, are selected from C1-C30 alkyl groups, linear or branched; optionally substituted cycloalkyl groups; optionally substituted aryl groups; optionally substituted heteroaryl groups; C1-C30 alkoxyl groups, linear or branched; R4—O—[CH2—CH2—O]m— polyoxyethylene groups, wherein R4 is selected from C1-C30 alkyl groups, linear or branched, and m is an integer ranging from 1 to 4; —R5—OR6 groups, wherein R5 is selected from C1-C30 alkylene groups, linear or branched, and R6 represents a hydrogen atom or is selected from C1-C30 alkyl groups, linear or branched, or is selected from R4—[—OCH2—CH2—]p— polyoxyethylene groups, wherein R4 has the same meanings as reported above and p is an integer ranging from 1 to 4; —COR7 groups, wherein R7 is selected from C1-C30 alkyl groups, linear or branched; —COOR8 groups, wherein R8 is selected from C1-C30 alkyl groups, linear or branched; or they represent a —CHO group or a cyano (—CN) group; R3 is selected from C1-C30 alkyl groups, linear or branched; optionally substituted cycloalkyl groups; optionally substituted aryl groups; and C1-C30 alkoxyl groups, linear or branched; n is an integer ranging from 10 to 500. There is also a photovoltaic device (or solar device) having a support having the conjugated polymer having a derivative of indacen-4-one.

    PROCESS FOR PRODUCING INVERTED POLYMER PHOTOVOLTAIC CELLS

    公开(公告)号:US20220255002A1

    公开(公告)日:2022-08-11

    申请号:US17626065

    申请日:2020-07-08

    申请人: ENI S.P.A.

    IPC分类号: H01L51/00

    摘要: A Process for producing an inverted polymer photovoltaic cell (or solar cell) includes the following steps providing an electron contact layer (cathode); depositing a cathodic buffer layer onto said electron contact layer; depositing a photoactive layer comprising at least one photoactive organic polymer and at least one organic electron acceptor compound onto the cathodic buffer layer; depositing an anodic buffer layer onto the photoactive layer; and providing a hole contact layer (anode). The step of depositing the cathodic buffer layer includes the steps of forming a layer onto the electron contact layer of a composition comprising having at least one zinc oxide and/or titanium dioxide or a precursor thereof, at least one organic solvent and at least one polymer soluble in the organic solvent; and plasma treating the layer formed onto the electron contact layer so as to form the cathodic buffer layer.

    PROCESS FOR PREPARING POLYPROPYLENE CARBONATE

    公开(公告)号:US20220220253A1

    公开(公告)日:2022-07-14

    申请号:US17609203

    申请日:2020-05-07

    申请人: ENI S.P.A.

    IPC分类号: C08G64/02 C08G64/34 C07F1/00

    摘要: There is a process for the preparation of polypropylene carbonate having the step of copolymerization of propylene oxide and carbon dioxide (CO2) in the presence of a catalytic system including: at least one catalyst selected from complexes of a transition metal having general formula (I): at least one co-catalyst selected from: (a) ionic compounds having general formula (II): and (b) ionic compounds having general formula (III)

    Luminescent solar concentrator
    88.
    发明授权

    公开(公告)号:US11380810B2

    公开(公告)日:2022-07-05

    申请号:US16334983

    申请日:2017-09-22

    申请人: ENI S.P.A.

    摘要: Luminescent solar concentrator (LSC) comprising at least one solution including at least one photoluminescent compound and at least one polyether polyol. Said luminescent solar concentrator (LSC) can be advantageously used in photovoltaic devices (or solar devices) such as, for example, photovoltaic cells (or solar cells), photoelectrolytic cells. In addition, said luminescent solar concentrator (LSC) can be advantageously used in photovoltaic windows.

    Polymer photovoltaic cell with an inverted structure and process for its preparation

    公开(公告)号:US11374186B2

    公开(公告)日:2022-06-28

    申请号:US16466492

    申请日:2018-02-21

    申请人: ENI S.P.A.

    摘要: Polymeric photovoltaic cell (or solar cell) with an inverted structure comprising: an anode; a first anode buffer layer; an active layer comprising at least one photoactive organic polymer as the electron donor and at least one organic electron acceptor compound; a cathode buffer layer; a cathode; wherein between said first anode buffer layer and said active layer a second anode buffer layer is placed comprising a hole transporting material, said hole transporting material being obtained through a process comprising: reacting at least one heteropoly acid containing at least one transition metal belonging to group 5 or 6 of the Periodic Table of the Elements; with at least an equivalent amount of a salt or a complex of a transition metal belonging to group 5 or 6 of the Periodic Table of the Elements with an organic anion, or with an organic ligand; in the presence of at least one organic solvent selected from alcohols, ketones, esters, preferably alcohols. Said polymer photovoltaic cell (or solar cell) with an inverted structure displays high photoelectric conversion efficiency values (η), i.e. a photoelectric conversion efficiency (η) greater than or equal to 4.5%, and good open circuit voltage (Voc), short-circuit current density (Jsc) and fill factor (FF) values. Furthermore, said polymer photovoltaic cell (or solar cell) with an inverted structure is able to maintain said values over time, in particular, in terms of photoelectric conversion efficiency (η).