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公开(公告)号：US20190105812A1
公开(公告)日：2019-04-11
申请号：US16099493
申请日：2017-06-01
Inventor： Yabing Qi , Luis Katsuya Ono
Abstract: A method of nanoscale patterning is disclosed. The method comprises: mixing predetermined amounts of a first solvent and a second solvent to generate a solvent, the first solvent and the second solvent being immiscible with each other; dissolving a solute material in the solvent to generate a coating material, the solute material having solubility that is higher in the first solvent than in the second solvent; and applying the coating material onto a substrate to form a plurality of pinholes in the coating material. The formation of the plurality of pinholes is associated with suspension drops mostly comprised of the second solvent, separated from the solute material dissolved in the first solvent, in the coating material. A method of making a stamp with a nanoscale pattern is also disclosed based on the above method.
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公开(公告)号：US11447858B2
公开(公告)日：2022-09-20
申请号：US16230095
申请日：2018-12-21
Inventor： Yabing Qi , Luis Katsuya Ono , Shenghao Wang
Abstract: A system and method for fabricating perovskite films for solar cell applications are provided, the system including a housing for use as a vacuum chamber, a substrate stage coupled to the top section of the housing; a first evaporator unit coupled to the bottom section of the housing and configured to generate BX2 (metal halide material) vapor; a second evaporator unit coupled to the housing and configured to generate AX (organic material) vapor; and a flow control unit coupled to the housing for controlling circulation of the AX vapor. The dimensions of the horizontal cross-sectional shape of the first evaporator unit, the dimensions of the horizontal cross-sectional shape of the substrate stage, and the relative position in the horizontal direction between the two horizontal cross-sectional shapes are configured to maximize the overlap between the two horizontal cross-sectional shapes.
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公开(公告)号：US20210383978A1
公开(公告)日：2021-12-09
申请号：US17339005
申请日：2021-06-04
Inventor： Yabing Qi , Longbin Qiu , Sisi He , Luis Katsuya Ono
Abstract: Systems and methods for performing a rapid hybrid chemical vapor deposition are described herein. In an embodiment, first type of precursor materials is deposited on a substrate. The substrate is placed in a receptacle of a heating device, the heating device configured to provide heat to at least a portion of the receptacle. A second type of precursor materials is placed in the receptacle of the heating device such that the organic compound is closer to a gas source of the heating device than the substrate. A gas flow is created through the receptacle of the heating device. The heating component is used to cause of a portion of the receptacle comprising the substrate and the second type of precursor materials. During the heating process, at least a portion of the second type of precursor materials is deposited on at least a portion of the first type of precursor materials on the substrate.
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Patent Agency Ranking
公开(公告)号：US10981304B2
公开(公告)日：2021-04-20
申请号：US16099493
申请日：2017-06-01
Inventor： Yabing Qi , Luis Katsuya Ono
IPC: B29C41/12 , B29C33/38 , H01L51/00 , B29C59/02 , B81C99/00 , B82Y30/00 , B82Y40/00 , B29C33/42 , H01L51/42 , B01D67/00 , B29L31/00
Abstract: A method of nanoscale patterning is disclosed. The method comprises: mixing predetermined amounts of a first solvent and a second solvent to generate a solvent, the first solvent and the second solvent being immiscible with each other; dissolving a solute material in the solvent to generate a coating material, the solute material having solubility that is higher in the first solvent than in the second solvent; and applying the coating material onto a substrate to form a plurality of pinholes in the coating material. The formation of the plurality of pinholes is associated with suspension drops mostly comprised of the second solvent, separated from the solute material dissolved in the first solvent, in the coating material. A method of making a stamp with a nanoscale pattern is also disclosed based on the above method.
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5.发明授权公开(公告)号：US10797640B2
公开(公告)日：2020-10-06
申请号：US16306713
申请日：2017-05-29
Inventor： Yabing Qi , Luis Katsuya Ono , Mikas Remeika , Sonia Ruiz Raga
Abstract: A system and method for assessing performance of a plurality of perovskite optoelectronic devices are disclosed. The system comprises a chamber, a light source, a switch board for allowing selection of a device among a plurality of devices in the chamber for measurement; a DC voltage supply for applying voltage to the device, a source/measure unit (SMU) for measuring current of the device; and a computer implemented with a software program including computer executable instructions to control at least the SMU, the DC voltage supply, the switch board, and the light source. The computer-implemented method for the performance assessment by using the system includes obtaining at least one of first current-versus-voltage (I-V) data according to a first procedure and second I-V data according to a second procedure for analyzing hysteresis behavior of the device.
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6.发明申请公开(公告)号：US20190131926A1
公开(公告)日：2019-05-02
申请号：US16306713
申请日：2017-05-29
Inventor： Yabing Qi , Luis Katsuya Ono , Mikas Remeika , Sonia Ruiz Raga
Abstract: A system and method for assessing performance of a plurality of perovskite optoelectronic devices are disclosed. The system comprises a chamber, a light source, a switch board for allowing selection of a device among a plurality of devices in the chamber for measurement; a DC voltage supply for applying voltage to the device, a source/measure unit (SMU) for measuring current of the device; and a computer implemented with a software program including computer executable instructions to control at least the SMU, the DC voltage supply, the switch board, and the light source. The computer-implemented method for the performance assessment by using the system includes obtaining at least one of first current-versus-voltage (I-V) data according to a first procedure and second I-V data according to a second procedure for analyzing hysteresis behavior of the device.
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公开(公告)号：US20180114648A1
公开(公告)日：2018-04-26
申请号：US15567282
申请日：2016-05-06
Inventor： Yabing Qi , Sonia Ruiz Raga , Luis Katsuya Ono
Abstract: A method of fabricating a perovskite-based optoelectronic device is provided, the method comprising: forming an active layer comprising organometal halide perovskite; making a solution comprising a hole transport material (HTM) and a solvent, the solvent having a boiling point lower than that of chlorobenzene; and forming a hole transport layer (HTL) by spin-coating the solution on the active layer. The solvents having a boiling point lower than that of chlorobenzene include chloroform and dichloromethane.
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公开(公告)号：US20170226641A1
公开(公告)日：2017-08-10
申请号：US15502331
申请日：2015-07-08
Inventor： Yabing Qi , Luis Katsuya Ono , Shenghao Wang
IPC: C23C16/52 , C23C16/455 , C23C16/46 , C23C16/40
CPC classification number: C23C16/52 , C07F7/22 , C07F7/24 , C23C14/0694 , C23C14/12 , C23C14/24 , C23C14/243 , C23C14/505 , C23C14/542 , C23C16/40 , C23C16/45502 , C23C16/46 , H01L31/0256 , H01L51/0008 , H01L51/0029 , H01L51/4226
Abstract: A system and method for fabricating a perovskite film is provided, the system including a substrate stage configured to rotate around its central axis at a rotation speed, a first set of evaporation units, each coupled to the side section or the bottom section of the chamber, a second set of evaporation units coupled to the bottom section, and a shield defining two or more zones having respective horizontal cross-sectional areas, which are open and facing the substrate, designated for the two or more evaporation units in the second set. The resultant perovskite film includes multiple unit layers, wherein each unit layer is formed by one rotation of the substrate stage, and the composition and thickness of the unit layer are controlled by adjusting at least the evaporation rates, the rotation speed and the horizontal cross-sectional areas.
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