Ladder-type heteroacene polymers bearing carbazole and thiophene ring units and their use in field-effect transistors and photovoltaic cells
Cited 21 times inCited 19 times in
- Ladder-type heteroacene polymers bearing carbazole and thiophene ring units and their use in field-effect transistors and photovoltaic cells
- Cheedarala, Ravi Kumar; Kim, Gi-Hwan; Cho, Shinuk; Lee, Junghoon; Kim, Jonggi; Song, Hyun-Kon; Kim, Jin Young; Yang, Changduk
- Benzothiadiazoles; Building blockes; Bulk heterojunction; Charge transport properties; Donor-acceptor copolymers; Electron-donating; Field-effect; Field-effect mobilities; In-field; Molecular entities; Organic electronic devices; Oxidative couplings; Power conversion efficiencies; Structural component; Suzuki polycondensation; Thiophene ring
- Issue Date
- ROYAL SOC CHEMISTRY
- JOURNAL OF MATERIALS CHEMISTRY, v.21, no.3, pp.843 - 850
- A family of ladder-type p-excessive conjugated monomer (dicyclopentathienocarbazole (DCPTCz)) integrating the structural components of carbazole and thiophene into a single molecular entity is synthesized and polymerized by oxidative coupling to yield poly(dicyclopentathienocarbazole) (PDCPTCz). Moreover, through the careful selection of 2,1,3-benzothiadiazole unit as a pi-deficient building block, the dicyclopentathienocarbazole-based donor-acceptor copolymer (poly(dicyclopentathienocarbazole-alt-2,1,3-benzothiadiazole) (PDCPTCz-BT)) is prepared by Suzuki polycondensation. The optical, electrochemical, and field-effect charge transport properties of the resulting polymers (PDCPTCz and PDCPTCz-BT) are not only characterized in detail but also their bulk-heterojunction (BHJ) solar cell in combination with PC(71)BM are evaluated. The values of field-effect mobility (m) for PDCPTCz and PDCPTCz-BT are 8.7 x 10(-6) cm(2) V(-1) s(-1) and 2.7 x 10(-4) cm(2) V(-1) s(-1), respectively. A power conversion efficiency (PCE) of 1.57% is achieved on the PDCPTCz-BT/PC(71)BM device, implying that the push-pull copolymers based on ladder-type dicyclopentathienocarbazole as an electron-donating moiety are promising for organic electronic devices.
- ; Go to Link
Appears in Collections:
- ECHE_Journal Papers
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.