| Autor: |
Henry Opoku, Ji-Yeon Choy, Ashok Kumar K, Hyun-Seok Kim, Nabeen K. Shrestha, Suresh D. Mane, Chinna Bathula |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 15632-15637 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2020.11.034 |
| Popis: |
Herein, we report a study on the performance of two well-known benzo [1,2-b:4,5-b']dithiophene (BDT) based donor-acceptor (D-A) copolymers for organic photodiode (OPD) application. Judicious material design motif via side-chain and acceptor unit alteration in both polymers resulted in the donor moieties namely, PBDTS-TDZ and PBDB-T, which were applied as active layers with fullerene derivative PC61BM in a bulk heterojunction OPD. Panchromatic light detection was afforded despite the molecular and structural changes in both polymers. Inverted OPD based on PBDB-T: PC61BM showed a comparatively broader photoresponse and better performance, with specific detectivity [EQE] of 3.749 × 1012 [62%] at a bias voltage of 2 V under red light illumination. This work entrenches the inter-dependent relationship existing between polymer structural design and their device performance for organic photodiode (OPD) application. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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