US 11,711,965 B2
Polymer, organic solar cell comprising polymer, perovskite solar cell comprising polymer
Soo Young Park, Seoul (KR); Won Sik Yoon, Seoul (KR); Dong Won Kim, Gyeongsangnam-do (KR); and Jun Mo Park, Seoul (KR)
Assigned to SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Filed by SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Filed on Mar. 17, 2021, as Appl. No. 17/203,813.
Application 17/203,813 is a division of application No. 16/492,655, granted, now 11,387,413, previously published as PCT/KR2018/002820, filed on Mar. 9, 2018.
Claims priority of application No. 10-2017-0033259 (KR), filed on Mar. 16, 2017; application No. 10-2018-0019512 (KR), filed on Feb. 19, 2018; and application No. 10-2018-0027796 (KR), filed on Mar. 9, 2018.
Prior Publication US 2021/0202856 A1, Jul. 1, 2021
Int. Cl. H01L 51/00 (2006.01); C08G 61/12 (2006.01); H01L 51/42 (2006.01); H01L 51/44 (2006.01); H01G 9/20 (2006.01)
CPC H01L 51/0036 (2013.01) [C08G 61/126 (2013.01); H01L 51/0043 (2013.01); C08G 2261/12 (2013.01); C08G 2261/1412 (2013.01); C08G 2261/3223 (2013.01); C08G 2261/3241 (2013.01); C08G 2261/91 (2013.01); H01G 9/204 (2013.01); H01G 9/2027 (2013.01); H01G 9/2031 (2013.01); H01L 51/4213 (2013.01); H01L 51/4253 (2013.01); H01L 51/442 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An organic solar cell comprising:
a first electrode and a second electrode disposed facing each other; and
a photo-active layer disposed between the first electrode and the second electrode,
wherein the photo-active layer comprises polymer for a photo-active layer of an organic solar cell which is represented by the following Structural Formula 1:

OG Complex Work Unit Chemistry
wherein in Structural Formula 1,
X1, X2, X3 and X4 are each independently O, S, Se, NH, or NR′,
R1, R2, R3 and R4 are each independently an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, or —COOR′,
A1, A2, A3, and A4 are each independently H, F, CN, or —COOR′,
R′ is an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms, and
n is an integer ranging from 1 to 1000,
wherein the polymer for a photo-active layer has a crystalline coherence length (CCL) in the range of 25 Å to 30 Å.