公开(公告)号：US20180122968A1

公开(公告)日：2018-05-03

申请号：US15632452

申请日：2017-06-26

申请人： SAMSUNG SDI CO., LTD.

发明人： Dae Sub SONG ,  Jae Hwi CHO

IPC分类号： H01L31/0224

CPC分类号： H01L31/022433 ,  H01B1/22 ,  H01L31/022425 ,  H01L31/068 ,  Y02E10/547

摘要： A finger electrode for a solar cell formed using a conductive paste comprising a conductive powder, a glass frit, and an organic vehicle. A linewidth A′ of the finger electrode at a point 0.5H satisfies the following Equation 1: 0.5A≤A′≤0.75A where H is the height of the finger electrode and A is the linewidth of a base of the finger electrode.

公开(公告)号：US20180158969A1

公开(公告)日：2018-06-07

申请号：US15628993

申请日：2017-06-21

申请人： SAMSUNG SDI CO., LTD.

发明人： Sang Hee PARK ,  Sang Jin KIM ,  Jae Hwi CHO

IPC分类号： H01L31/0224

CPC分类号： H01L31/022425 ,  H01B1/22 ,  H01L31/022433 ,  Y02E10/50

摘要： A method of manufacturing a finger electrode for a solar cell including printing a conductive paste on one surface of a substrate using a print mask having an aperture ratio of about 65% or more, and baking the printed conductive paste. The conductive paste includes a conductive powder, a glass frit, and an organic vehicle. The organic vehicle includes a solvent having a vapor pressure of about 0.1 Pa to about 500 Pa at room temperature and a flash point of about 90° C. to about 150° C.

公开(公告)号：US20170362117A1

公开(公告)日：2017-12-21

申请号：US15610999

申请日：2017-06-01

申请人： SAMSUNG SDI CO., LTD.

发明人： Jae Hwi CHO ,  Dong Suk KIM ,  Seok Hyun JUNG

IPC分类号： C03C8/18 ,  H01B1/20 ,  C03C8/04 ,  C03C3/14 ,  H01L31/0224 ,  C03C4/14 ,  H01B1/14

CPC分类号： C03C8/18 ,  C03C3/072 ,  C03C3/142 ,  C03C4/14 ,  C03C8/04 ,  C03C8/10 ,  C03C8/16 ,  C03C14/006 ,  C03C2204/00 ,  C03C2205/00 ,  C03C2214/08 ,  H01B1/14 ,  H01B1/20 ,  H01L31/022425

摘要： A composition for solar cell electrodes including a conductive powder, a glass frit, and an organic vehicle. The glass frit contains tellurium (Te), sodium (Na), zinc (Zn), and at least one of lead (Pb) and bismuth (Bi). A molar ratio of the sum of lead and bismuth to zinc ranges from about 1 to about 20. A molar ratio of tellurium to sodium ranges from about 1 to about 15.

公开(公告)号：US20190181277A1

公开(公告)日：2019-06-13

申请号：US16004695

申请日：2018-06-11

申请人： Samsung SDI Co., Ltd.

发明人： Sang Hee PARK ,  Sang Jin KIM ,  Jae Hwi CHO ,  Hyun Jin HA

IPC分类号： H01L31/0224 ,  H01B1/22

摘要： A solar cell includes a silicon substrate and an electrode formed on the silicon substrate. The silicon substrate has at least 5 raised portions having a cross-sectional height (h) of 50 nm or more per 5 μm length. The electrode is formed from a composition for solar cell electrodes including a conductive powder, an organic vehicle, and a glass frit having a glass transition temperature (Tg) of about 150° C. to about 450° C.

公开(公告)号：US20180047859A1

公开(公告)日：2018-02-15

申请号：US15661465

申请日：2017-07-27

申请人： SAMSUNG SDI CO., LTD.

发明人： Dong Suk KIM ,  Hee In NAM ,  Sang Hee PARK ,  Seok Hyun JUNG ,  Jae Hwi CHO

IPC分类号： H01L31/0224

摘要： A front electrode for solar cells and a solar cell, the front electrode including a stepped structure at an outermost surface thereof, wherein the stepped structure is composed of n stages, in which n is an integer of 3 or greater, and an nth stage has a smaller cross-sectional area than an (n−1)th stage such that the (n−1)th stage is partially exposed, and the stepped structure occupies about 5% to about 100% of a total surface area of the outermost surface.