2,1,3-Benzothiadiazole-5,6-dicarboxylicimide-Based Polymer Semiconductors for Organic Thin-Film Transistors and Polymer Solar Cells

Yu, Jianwei1,2,3,4; Ornelas, Joshua Lorona3,4,5; Tang, Yumin3,4; Uddin, Mohammad Afsar6; Guo, Han3,4; Yu, Simiao1,2; Wang, Yulun3,4; Woo, Han Young6; Zhang, Shiming1,2; Xing, Guichuan7; Guo, Xugang3,4; Huang, Wei1,2,8

2017-12-06

10.1021/acsami.7b11863

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

A series of polymer semiconductors incorporating 2,1,3-benzothiadiazole-5,6-dicarboxylicimide (BTZI) as strong electron-withdrawing unit and an alkoxy-functionalized head-to-head linkage containing bithiophene or bithiazole as highly electron-rich co-unit are designed and synthesized. Because of the strong intramolecular charge transfer characteristics, all three polymers BTZI-TRTOR (P1), BTZI-BTOR (P2), and BTZI-BTzOR (P3) exhibit narrow bandgaps of 1.13, 1.05, and 0.92 eV, respectively, resulting in a very broad absorption ranging from 350 to 1400 nm. The highly electron-deficient 2,1,3-benzothiadiazole-5,6-dicarboxylicimide and alkoxy-functionalized bithiophene (or thiazole) lead to polymers with low-lying lowest unoccupied molecular orbitals (-3.96 to -4.28 eV) and high-lying highest occupied molecular orbitals (-5.01 to -5.20 eV). Hence, P1 and P3 show substantial and balanced ambipolar transport with electron mobilities/hole mobilities of up to 0.86/0.51 and 0.95/0.50 cm(2) V-1 s(-1), respectively, and polymer P2 containing the strongest donor unit exhibited unipolar p-type performance with an average hole mobility of 0.40 cm(2) V-1 s(-1) in top-gate/bottom-contact thin-film transistors with gold as the source and drain electrodes. When incorporated into bulk heterojunction polymer solar cells, the narrow bandgap (1.13 eV) polymer P1 shows an encouraging power conversion efficiency of 4.15% with a relatively large open-circuit voltage of 0.69 V, which corresponds to a remarkably small energy loss of 0.44 eV. The power conversion efficiency of P1 is among the highest reported to date with such a small energy loss in polymer:fullerene solar cells.

conjugated polymer organic thin-film transistors organic solar cells ambipolar energy loss

SCI ; EI

英语

通讯

National Research Foundation (NRF) of Korea[2016M1A2A2940911] ; National Research Foundation (NRF) of Korea[20100020209]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000417669300058

AMER CHEMICAL SOC

20175004539469

Charge transfer ; Conjugated polymers ; Conversion efficiency ; Electrons ; Energy dissipation ; Energy efficiency ; Energy gap ; Field effect transistors ; Heterojunctions ; Hole mobility ; Molecular orbitals ; Narrow band gap semiconductors ; Open circuit voltage ; Organic solar cells ; Solar cells ; Thin film transistors ; Thin films

Energy Management and Conversion:525 ; Solar Cells:702.3 ; Semiconducting Materials:712.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Organic Polymers:815.1.1

Web of Science

1.Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Key Lab Flexible Elect KLOFE, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
2.Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, IAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
3.South Univ Sci & Technol China, Dept Mat Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
4.South Univ Sci & Technol China, Shenzhen Key Lab Printed Organ Elect, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
5.Friedrich Alexander Univers Erlangen Nurnberg FAU, Dept Chem & Pharm, Egerlandstr 3, D-91058 Erlangen, Germany
6.Korea Univ, Res Inst Nat Sci, Dept Chem, Seoul 136713, South Korea
7.Univ Macau, Inst Appl Phys & Mat Engn, Macau 999078, Peoples R China
8.NPU, SIFE, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China

Yu, Jianwei,Ornelas, Joshua Lorona,Tang, Yumin,et al. 2,1,3-Benzothiadiazole-5,6-dicarboxylicimide-Based Polymer Semiconductors for Organic Thin-Film Transistors and Polymer Solar Cells[J]. ACS Applied Materials & Interfaces,2017,9(48):42167-42178.

Yu, Jianwei.,Ornelas, Joshua Lorona.,Tang, Yumin.,Uddin, Mohammad Afsar.,Guo, Han.,...&Huang, Wei.(2017).2,1,3-Benzothiadiazole-5,6-dicarboxylicimide-Based Polymer Semiconductors for Organic Thin-Film Transistors and Polymer Solar Cells.ACS Applied Materials & Interfaces,9(48),42167-42178.

Yu, Jianwei,et al."2,1,3-Benzothiadiazole-5,6-dicarboxylicimide-Based Polymer Semiconductors for Organic Thin-Film Transistors and Polymer Solar Cells".ACS Applied Materials & Interfaces 9.48(2017):42167-42178.