A twisted monomeric perylenediimide electron acceptor for efficient organic solar cells
Cai, Y; Guo, X; Sun, X; Wei, D; Yu, M; Huo, L; Sun, Y
| HERO ID | 3575476 |
|---|---|
| In Press | No |
| Year | 2016 |
| Title | A twisted monomeric perylenediimide electron acceptor for efficient organic solar cells |
| Authors | Cai, Y; Guo, X; Sun, X; Wei, D; Yu, M; Huo, L; Sun, Y |
| Volume | 59 |
| Issue | 6 |
| Page Numbers | 427-434 |
| Abstract | Perylenediimide (PDI)-based materials exhibit great potential as non-fullerene acceptors in bulk-heterojunction (BHJ) organic solar cells (OSCs). Recent investigations have revealed that PDI molecules with a twisted structure could disrupt aggregation of perylene unit. Here, we present a PDI monomer via bay-substitutions with four fused naphthalene units by three-step reactions, named TN-PDI. The introduction of four fused naphthalene rings into the bay positions of PDI unit leads to a strong steric hindrance with a twist angle of 33 degrees between the two PDI subplanes. Blended with a wide-band gap polymer donor (PDBT-T1), the TN-PDI based non-fullerene solar cells show power conversion efficiency (PCE) of 3.0%. Our results indicate that the bay-substitutions with fused aromatic substitutions could be an efficient approach to develop monomeric PDI acceptors. |
| Doi | 10.1007/s40843-016-5063-3 |
| Wosid | WOS:000383104900005 |
| Url | <Go to ISI>://WOS:000383104900005 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal:SCIENCE CHINA-MATERIALS 2095-8226 |
| Is Public | Yes |
| Keyword | organic solar cells; non-fullerene electron acceptors; perylene diimide; monomer |