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公开(公告)号：US20220085221A1
公开(公告)日：2022-03-17
申请号：US17456748
申请日：2021-11-29
发明人： Katsuyuki NAITO , Naomi SHIDA , Yutaka SAITA
IPC分类号： H01L31/0256 , H01L31/0224
摘要： The present embodiment provide a method for evaluating anion permeability of a graphene-containing membrane and also to provide a photoelectric conversion device employing a graphene-containing membrane having controlled anion permeability. The method comprises:
preparing a measuring apparatus comprising an aqueous solution containing anions, a working electrode containing silver-metal, a counter electrode and a reference electrode; measuring the reaction current I0 between the silver-metal and the anions while the electrode potential of the working electrode to the counter electrode is being periodically changed and driven under the condition that the electrodes are in contact with the aqueous solution; measuring the reaction current I1 under the condition that, instead of the working electrode, the graphene-containing membrane electrically connecting to the working electrode is in contact with the aqueous solution; and comparing the currents I0 and I1 to evaluate anion-permeability of the graphene-containing membrane.-
公开(公告)号：US20220209151A1
公开(公告)日：2022-06-30
申请号：US17469723
申请日：2021-09-08
发明人： Naomi SHIDA , Katsuyuki NAITO , Yutaka SAITA
摘要： The present embodiment provides a transparent electrode, a transparent electrode production process and a photoelectric conversion device. The transparent electrode comprises a patterned electrode layer formed on a transparent substrate. The electrode layer has an electroconductive film containing metal nanowires and also has a film of N-graphene. In the graphene carbon skeleton of the N-graphene, carbon atoms are partly substituted with nitrogen atoms. The transparent electrode can be produced by: forming an electroconductive layer by coating with a dispersion containing metal nanowires; then forming an N-graphene film thereon; and subsequently patterning them.
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公开(公告)号：US20210408378A1
公开(公告)日：2021-12-30
申请号：US17469278
申请日：2021-09-08
发明人： Katsuyuki NAITO , Naomi SHIDA , Takashi KUMATA , Yutaka SAITA
摘要： The embodiment provides a coating process capable of simply and inexpensively producing devices having strip-shaped cells, and a coating apparatus usable for the process. The process comprises: (a) placing a bar coating head almost parallel to the substrate, (b) placing plural coating nozzles for supplying coating solution to meniscus-forming parts, so that the center between each adjacent two of the coating nozzles may correspond to the separation area between each adjacent two of the strip-shaped cell bases, and (c) moving the substrate or the bar coating head while the coating solution is being supplied from the nozzles, to form the coating films.
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公开(公告)号：US20230025098A1
公开(公告)日：2023-01-26
申请号：US17930582
申请日：2022-09-08
发明人： Naomi SHIDA , Katsuyuki NAITO , Yutaka SAITA
IPC分类号： H01L31/0224 , C25B11/046 , C25B11/067
摘要： To provide a transparent electrode that hardly causes migration of silver and has high resistance, a method for producing the same, and an electronic device using the transparent electrode.
A transparent electrode according to the embodiment includes a laminated structure in which a transparent base material, a conductive silver-containing layer, and a conductive oxide layer are laminated in this order,
wherein a ratio T800/T600 of total transmittances of the transparent electrode is 0.85 or more, where T800 and T600 are transmittances at wavelengths of 800 nm and 600 nm, respectively, and
the silver-containing layer is continuous. This electrode can be produced by bringing sulfur or a sulfur compound into contact with a laminated film in which a conductive silver-containing layer and a conductive oxide layer are laminated to form a sulfur-containing silver compound layer.-
公开(公告)号：US20220379339A1
公开(公告)日：2022-12-01
申请号：US17819378
申请日：2022-08-12
发明人： Naomi SHIDA , Katsuyuki NAITO , Yutaka SAITA
摘要： According to one embodiment, a coating apparatus includes a coating bar configured to face a member to be coated, and a plurality of nozzles configured to supply a liquid toward the coating bar. A number of the nozzles is 3 or more. An arithmetic mean roughness Ra of at least a part of a surface of the coating bar is not less than 0.5 μm and not more than 10 μm.
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公开(公告)号：US20210387222A1
公开(公告)日：2021-12-16
申请号：US17445735
申请日：2021-08-24
发明人： Katsuyuki NAITO , Naomi SHIDA , Kohei NARA , Takahiro KOKUBO , Yutaka SAITA
摘要： According to one embodiment, a coating head includes a coating bar, nozzles, a first member, second members, third members, elastic members, and a position controller. The coating bar faces a coating member. The nozzles supply a liquid toward the coating bar. The first member includes first recesses. A portion of the nozzles is between the first recesses and the third members. The portion of the nozzles and the third members are fixed to the first member by the second members. The elastic members are located in at least first, second, or third positions. The first position is between the third members and the second members. The second position is between the portion of the first recesses and the nozzles. The third position is between the portion of the nozzles and the third members. The position controller controls a relative position between the coating bar and the nozzles.
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7.发明公开公开(公告)号：US20240222535A1
公开(公告)日：2024-07-04
申请号：US18603441
申请日：2024-03-13
发明人： Naomi SHIDA , Katsuyuki NAITO , Yutaka SAITA
IPC分类号： H01L31/0224 , H01L31/04 , H01L31/18
CPC分类号： H01L31/022466 , H01L31/04 , H01L31/1884
摘要： Provided are a transparent electrode that can be manufactured at a low temperature, has low sheet resistance, is highly transmissive and lightweight, and allows realization of a flexible solar cell, large-area illumination, and the like, a preparing method of the transparent electrode, and an electronic device using the transparent electrode. A transparent electrode according to an embodiment has a network of silver nanowires. The transparent electrode includes a silver nanowire having a minimum curvature radius r of a curve of 2 μm or less and a bending angle Θ of 90° or more, and a compound having a boiling point of 160° C. or lower and an alkynyl group and a hydroxy group.
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公开(公告)号：US20230390799A1
公开(公告)日：2023-12-07
申请号：US18450673
申请日：2023-08-16
发明人： Naomi SHIDA , Katsuyuki NAITO , Yutaka SAITA
CPC分类号： B05C5/0275 , B05C5/0291 , B05C1/0804 , B05C1/0813 , B05D1/28
摘要： According to one embodiment of the invention, a coating apparatus includes a coating bar, a plurality of nozzles, a plurality of holding portions, and a detector. The coating bar is configured to face a coating target member. The plurality of nozzles are configured to supply a liquid toward the coating bar. One of the plurality of holding portions holds one of the plurality of nozzles. The one of the plurality of holding portions is configured to control a position of the one of the plurality of nozzles relative to the coating bar. The detector is configured to detect a quantity corresponding to respective positions of the plurality of nozzles with respect to the coating bar.
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9.发明申请公开(公告)号：US20210184127A1
公开(公告)日：2021-06-17
申请号：US17186847
申请日：2021-02-26
发明人： Katsuyuki NAITO , Naomi SHIDA , Yutaka SAITA
摘要： The embodiments provide a process for easily producing an electrode having low resistance, easily subjected to post-process and hardly impairing the device; and also provide, as its application, a production process for a photoelectric conversion device. The process comprises the steps of: coating a hydrophobic substrate directly with a dispersion of metal nanomaterial, to form a metal nanomaterial layer, coating the surface of the metal nanomaterial layer with a dispersion of carbon material, to form a carbon material layer and thereby to form an electrode layer comprising a laminate of the metal nanomaterial layer and the carbon material layer, pressing the carbon material layer onto a hydrophilic substrate so that the surface of the carbon material layer may be directly fixed on the hydrophilic substrate, and peeling away the hydrophobic substrate so as to transfer the electrode layer onto the hydrophilic substrate.
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公开(公告)号：US20210178420A1
公开(公告)日：2021-06-17
申请号：US17186789
申请日：2021-02-26
发明人： Katsuyuki NAITO , Naomi SHIDA , Mitsunaga SAITO , Yutaka SAITA
摘要： An embodiment of the present invention provides a coating method, a coating bar head and a coating apparatus which enables coating in which changes in coating film thickness is less likely to occur, even when performing meniscus coating at a high speed. This coating method is a coating method including: supplying a coating liquid between a coating bar head and a substrate to form a meniscus; and moving the substrate, wherein a cross section of the coating surface of the bar head in the direction of coating, is a convex curve, and has bending points at both ends of the curve.
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