公开(公告)号：US12024423B2

公开(公告)日：2024-07-02

申请号：US17587922

申请日：2022-01-28

Applicant: POSTECH Research and Business Development Foundation

Inventor： Jung Ho Je ,  Seung Soo Oh ,  Un Yang ,  Moon Jung Yong ,  Byung Hwa Kang

IPC: B82B3/00 ,  B82Y20/00 ,  B82Y40/00

CPC classification number: B82B3/0023 ,  B82Y20/00 ,  B82Y40/00

Abstract: Provided is a method of fabricating a micro/nanowire having a nanometer- to micrometer-sized diameter at predetermined positions on an object. The method comprises: preparing a micro/nanopipette having a tip with an inner diameter (dpt) which is substantially the same as the diameter of the micro/nanowire to be fabricated; filling the micro/nanopipette with a solution containing a micro/nanowire-forming material; bringing the solution into contact with the object through the tip of the micro/nanopipette; and pulling the micro/nanopipette apart from the object at a pulling speed lower than or equal to a predetermined critical pulling speed (vc) to fabricate a micro/nanowire having substantially the same diameter as the inner diameter of the micro/nanopipette tip (dpt). The critical pulling speed (vc) is defined by a maximum limit of the pulling speed at which the micro/nanowire to be fabricated has the same diameter as the inner diameter of the micro/nanopipette tip (dpt).

公开(公告)号：US11911983B2

公开(公告)日：2024-02-27

申请号：US17306220

申请日：2021-05-03

Applicant: POSTECH Research and Business Development Foundation

Inventor： Jung Ho Je ,  Un Yang ,  Seung Soo Oh ,  Moon Jung Yong ,  Byung Hwa Kang

IPC: B29D11/00 ,  B82Y40/00 ,  D01D5/06 ,  B29K105/00

CPC classification number: B29D11/00663 ,  B82Y40/00 ,  D01D5/06 ,  B29K2105/0073

Abstract: Provided is a method of forming a micro/nanowire having a nanometer- to micrometer-sized diameter at predetermined positions of an object. The method includes: preparing a micro/nanopipette having a tip with an inner diameter which is substantially the same as the diameter of the micro/nanowire to be formed; filling the micro/nanopipette with a solution containing a micro/nanowire-forming material; brining the solution into contact with the object through the tip of the micro/nanopipette; and pulling the micro/nanopipette from the object at a pulling speed lower than or equal to a predetermined critical speed (νc) to obtain a micro/nanowire having substantially the same diameter as the inner diameter of the micro/nanopipette tip.