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公开(公告)号：US20210389583A1
公开(公告)日：2021-12-16
申请号：US17281800
申请日：2019-09-16
IPC分类号： G02B26/00 , C08K5/18 , C08K5/3447 , E06B9/24 , E06B3/67
摘要： A visibility controlling device with switchable transparency. This design of visibility controlling device is economical and can be operated manually or under electric power. The time for switching from translucent to transparent state requires about 5-30 seconds.
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2.发明申请公开(公告)号：US20210139333A1
公开(公告)日：2021-05-13
申请号：US16622731
申请日：2018-03-23
发明人： Shyam Kumar Choudhary , Sumitesh Das , Giridhar Udapi Rao Kulkarni , Rajashekhar Ningappa Pujar
IPC分类号： C01B32/186 , C01B32/194 , C23C14/18 , C23C14/24
摘要： The present disclosure relates to production of electrodes. The present disclosure particularly relates to production of graphene based transparent conducting electrode (TCE). The disclosure provides a simple and environmental friendly process for producing said graphene based TCE by coating of graphene on a modified or non-modified substrate. Said electrode provides large area metal network with reduced non-uniformity of conducting film, visible transparency and low or reduced sheet resistance. The disclosure further relates to a graphene based transparent conductive electrode (TCE).
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公开(公告)号：US20210238042A1
公开(公告)日：2021-08-05
申请号：US17056967
申请日：2019-05-22
发明人： Anand SEN , Sumitesh DAS , Shyam Kumar CHOUDHARY , Giridhar Udapi Rao KULKARNI , Murali GEDDA , Rajashekhar Ningappa PUJAR
IPC分类号： C01B32/198
摘要： The present disclosure provides a simple and inexpensive method to produce reduced Graphene oxide (rGO). The method comprises conversion of low-cost carbon sources such as coal tar pitch (industrial by-product) into a high quality rGO wherein said conversion is carried out by annealing the carbon source at two different temperatures. The rGO is obtained at high yields by employing the present method and the obtained rGO demonstrates high conductivity and good surface area along with very low oxygen content.
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公开(公告)号：US20210202762A1
公开(公告)日：2021-07-01
申请号：US16769991
申请日：2018-12-06
发明人： Shyam Kumar Choudhary , Sumitesh Das , Giridhar Udapi Rao Kulkarni , Rajashekhar Ningappa Pujar
IPC分类号： H01L31/0224 , H01L31/18 , H01L51/44
摘要： The present invention relates to hybrid transparent conducting electrode comprising reduced graphene oxide film, metal mesh and textured glass, wherein the reduced graphene oxide film is coated on the textured glass embedded with the metal mesh or the reduced graphene oxide film is sandwiched between the textured glass and the metal mesh. The present invention also relates to a process of preparing the hybrid conducting transparent conducting electrode. The said transparent conducting electrode exhibits transparency ranging from about 70% to 85% with sheet resistance ranging from about 5Ω/sq to 100Ω/sq.
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公开(公告)号：US20190352184A1
公开(公告)日：2019-11-21
申请号：US16466903
申请日：2017-07-21
IPC分类号： C01B32/186
摘要： The present disclosure relates to a process for producing graphene, wherein the process is simple and economical. In the said process the substrate is contacted with vaporized seedlac to produce graphene on a substrate including but not limited to conductive material and non-conductive material. The disclosure further relates to a graphene which is impermeable to ions and molecules, resistant to oxidation and is hydrophobic. The disclosure furthermore relates to a substrate comprising graphene, said substrate is resistant to corrosion, resistant to oxidation and is hydrophobic.
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公开(公告)号：US11782261B2
公开(公告)日：2023-10-10
申请号：US17281800
申请日：2019-09-16
IPC分类号： G02B26/00 , C08K5/18 , C08K5/3447 , E06B3/67 , E06B9/24
CPC分类号： G02B26/004 , C08K5/18 , C08K5/3447 , E06B3/6722 , E06B9/24 , E06B2009/2411
摘要： A visibility controlling device with switchable transparency. This design of visibility controlling device is economical and can be operated manually or under electric power. The time for switching from translucent to transparent state requires about 5-30 seconds.
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公开(公告)号：US11569397B2
公开(公告)日：2023-01-31
申请号：US16769991
申请日：2018-12-06
发明人： Shyam Kumar Choudhary , Sumitesh Das , Giridhar Udapi Rao Kulkarni , Rajashekhar Ningappa Pujar
IPC分类号： H01L31/0224 , H01L31/18 , H01L51/44
摘要： The present invention relates to hybrid transparent conducting electrode comprising reduced graphene oxide film, metal mesh and textured glass, wherein the reduced graphene oxide film is coated on the textured glass embedded with the metal mesh or the reduced graphene oxide film is sandwiched between the textured glass and the metal mesh. The present invention also relates to a process of preparing the hybrid conducting transparent conducting electrode. The said transparent conducting electrode exhibits transparency ranging from about 70% to 85% with sheet resistance ranging from about 5 Ω/sq to 100 Ω/sq.
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公开(公告)号：US10807871B2
公开(公告)日：2020-10-20
申请号：US16466903
申请日：2017-07-21
IPC分类号： C01B32/186 , B82Y30/00 , B82Y40/00
摘要： The present disclosure relates to a process for producing graphene, wherein the process is simple and economical. In the said process the substrate is contacted with vaporized seedlac to produce graphene on a substrate including but not limited to conductive material and non-conductive material. The disclosure further relates to a graphene which is impermeable to ions and molecules, resistant to oxidation and is hydrophobic. The disclosure furthermore relates to a substrate comprising graphene, said substrate is resistant to corrosion, resistant to oxidation and is hydrophobic.
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公开(公告)号：US11897772B2
公开(公告)日：2024-02-13
申请号：US17056967
申请日：2019-05-22
发明人： Anand Sen , Sumitesh Das , Shyam Kumar Choudhary , Giridhar Udapi Rao Kulkarni , Murali Gedda , Rajashekhar Ningappa Pujar
IPC分类号： C01B32/198
CPC分类号： C01B32/198 , C01P2006/12 , C01P2006/40
摘要： The present disclosure provides a simple and inexpensive method to produce reduced Graphene oxide (rGO). The method comprises conversion of low-cost carbon sources such as coal tar pitch (industrial by-product) into a high quality rGO wherein said conversion is carried out by annealing the carbon source at two different temperatures. The rGO is obtained at high yields by employing the present method and the obtained rGO demonstrates high conductivity and good surface area along with very low oxygen content.
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10.发明授权公开(公告)号：US11511999B2
公开(公告)日：2022-11-29
申请号：US16622731
申请日：2018-03-23
发明人： Shyam Kumar Choudhary , Sumitesh Das , Giridhar Udapi Rao Kulkarni , Rajashekhar Ningappa Pujar
IPC分类号： C01B32/186 , C01B32/194 , C23C14/18 , C23C14/24 , H01L31/0224 , H01L33/42
摘要： The present disclosure relates to production of electrodes. The present disclosure particularly relates to production of graphene based transparent conducting electrode (TCE). The disclosure provides a simple and environmental friendly process for producing said graphene based TCE by coating of graphene on a modified or non-modified substrate. Said electrode provides large area metal network with reduced non-uniformity of conducting film, visible transparency and low or reduced sheet resistance. The disclosure further relates to a graphene based transparent conductive electrode (TCE).
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