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Name: OPV donor D18 (PCE18)

Synonyms: 

笔辞濒测摆(2,6-(4,8-产颈蝉(5-(2-别迟丑测濒丑别虫测濒-3-蹿濒耻辞谤辞)迟丑颈辞辫丑别苍-2-测濒)-产别苍锄辞摆1,2-产:4,5-产’闭诲颈迟丑颈辞辫丑别苍别))-补濒迟-5,5'-(5,8-产颈蝉(4-(2-产耻迟测濒辞肠迟测濒)迟丑颈辞辫丑别苍-2-测濒)诲颈迟丑颈别苍辞摆3',2':3,4;2'',3'':5,6闭产别苍锄辞摆1,2-肠闭摆1,2,5闭迟丑颈补诲颈补锄辞濒别)闭；

OPV donor D18.

CAS No.: 2433725-54-1 EINECS: N/A MF: (C76H92F2N2S9)n MW: N/A HOMO = -5.51 eV, LUMO = -2.77 eV MP: N/A BP: N/A FP: N/A Density: N/A Purity: 97% Min. Appearance: Brown powder/fibres

Application: Electron donor, OPV, Organic Semiconductors, Polymeric Hole Transport Materials

Storage Condition: Store in a cool, dry place. Keep the container closed when not in use.

Solubility: Chloroform, chlorobenzene and dichlorobenzene

D18, also referred to as PCE18, is a narrow bandgap copolymer with a backbone alternating electron-donating benzodithiophene (BDT) and electron-accepting fused-ring dithienobenzothiadiazole (DTBT) units. With a larger molecular plane structure and a higher degree of conjugation from the fused ring DTBT, D18 has a high hole mobility of 1.59 × 10-3 cm2 V-1 s-1.

A device efficiency of 18.22% and certified efficiency of 17.6% have been achieved using D18 as the electron donor and Y6 as an acceptor in a single junction non-fullerene polymer solar cell (NF-PSC) [1]. 

D18 is the donor material of the current world record for binary batteries.

Due to their unique molecular weight requirements, it is generally difficult to replicate the level reported in the literature.

Literature and Reviews

1. 18% Efficiency organic solar cells, Q. Liu et al., Sci. Bull., 65, 272 (2020); doi: 10.1016/j.scib.2020.01.001.

2. Progress of the key materials for organic solar cells, Y. Tong et al., Sci. China Chem., 63, 758–765 (2020); DOI: 10.1007/s11426-020-9726-0.

3. Multi-channel exciton dissociation in D18/Y6 complexes for high-efficiency organic photovoltaics, Z. Cao et al., J. Mater. Chem. A, 8, 20408-20413 (2020); doi: 10.1039/D0TA07996K.

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