Patent AU-2020356808-B2 (AU)
Title: Terpolymer based on 2,5-bis(2-thienyl)thiazolo[5,4-d]thiazolyl
Inventor: ZHANG MAOJIE
IPC: C09K3/00
Filed: 2020-07-16
Granted: 2022-11-24
Abstract: if N j 41-MJP)W I IN -Ef |EP $ l 
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(54) Title: 2,5-DI(2-THIENYL)THIAZO[5,4-D]THIAZOLYL BASED TERNARY RANDOM CONJUGATED POLYMER 
(54)&RR)M : 2 
(57) Abstract: Disclosed is a 2,5-di(2-thienyl)thiazo[5,4-d]thiazolyl 
based ternary random conjugated polymer, having general formu
la structure (I). By introducing a 2,5-di(2-thienyl)thiazo[5,4-d]thia
AA zole unit, a band gap of a polymer is improved and the absorption 
spectrum is broadened; the introduction of the 2,5-di(2-thienyl)thiaz 
o[5,4-d]thiazole unit has photophysical properties that are easily mod
ified, and a ternary copolymer shows an excellent photovoltaic per
ao- formance; and applying the introduction of the 2,5-di(2-thienyl)thia
zo[5,4-d]thiazole unit to an organic solar cell can improve the photo 
4 , , , , , ,conversion efficiency of the organic solar cell.  
100 200 300 400 500 60 
BB ~r(OC) (7) AMR: BB gi!( " )(57 1 A:l T 2,5- -- (2- HAM A ) [5,4-d] HA, @i A 
A2,5- -- (2-PA AY-) HA li # [5,4-d] HA l %%i% 
R1S R1 R, F R2 F )U Y, HA, A25- (2-N1Y)1 
0 0 R3 R4 R3 R4 ' [5,4-d]1 HA, # W A tfufl fyAttAI, Sun 
F XR Fs R2 (I) t N~ cc 
AA Weight percentage content 
BB Temperature (C) 
(NiCC (FormulaI1)
W O 202 1/0778 15 A||||||8|||||||||||||||||||||||||||||||||||||||||||||||||||||||||| i| | l||i 
(8 4)) p AT-j 
M): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, 
NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Skl (AM, 
AZ, BY, KG, KZ, RU, TJ, TM), [III (AL, AT, BE, BG, 
CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, 
IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, 
RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, 
CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).  
- # K [I Tf*R(* M21*(3))