Two-dimensional benzodithiophene and benzothiadiazole based solution-processed small molecular organic field-effect transistors & solar cells

被引：45

作者：

Chen, Yanhua ^{[1
,2
]}

Yan, Yan ^{[3
]}

Du, Zhengkun ^{[1
]}

Bao, Xichang ^{[1
]}

Liu, Qian ^{[2
]}

Roy, V. A. L. ^{[3
]}

Sun, Mingliang ^{[2
,3
,4
]}

Yang, Renqiang ^{[1
]}

Lee, Chun Sing ^{[3
]}

机构：

[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China

[2] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China

[3] City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Hong Kong, Hong Kong, Peoples R China

[4] City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2014年 / 2卷 / 20期

基金：

中国国家自然科学基金;

关键词：

DONOR-ACCEPTOR COPOLYMERS; HIGH-PERFORMANCE; PHOTOVOLTAIC PROPERTIES; POLYMER; EFFICIENCY; MOBILITY; DYE;

D O I：

10.1039/c4tc00086b

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Benzodithiophene (BDT) and benzothiadiazole (BT) based small molecules have been synthesized through palladium-catalyzed Stille coupling reactions. The molecules with and without the conjugated thiophene side-chain were named as DRTBTTBDTT (2D) and DRTBTTBDT (1D), respectively. These molecules exhibited an optical band gap of around 1.8 eV. Solution-processed thin films of 1D and 2D showed that the conjugated thiophene side-chain oriented to produce a uniform 2D structure, which led to a relatively high hole mobility of 0.016 cm(2) V-1 s(-1), and this was one of the highest values for solutionprocessed small-molecule donors in organic solar cells (OSCs). With proper engineering of energy levels, the organic solar cells based on DRTBTTBDTT (2D) as donors exhibited a high Voc of around 0.9 V.

引用

页码：3921 / 3927

页数：7

共 35 条

[1] Marked Alkyl- vs Alkenyl-Substitutent Effects on Squaraine Dye Solid-State Structure, Carrier Mobility, and Bulk-Heterojunction Solar Cell Efficiency [J].

Bagnis, Diego ;

Beverina, Luca ;

Huang, Hui ;

Silvestri, Fabio ;

Yao, Yan ;

Yan, Henry ;

Pagani, Giorgio A. ;

Marks, Tobin J. ;

Facchetti, Antonio .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (12) :4074-+

[2] An Easily Accessible Donor-π-Acceptor-Conjugated Small Molecule from a 4,8-Dialkoxybenzo[1,2-b:4,5-b′]dithiophene Unit for Efficient Solution-Processed Organic Solar Cells [J].

Dutta, Pranabesh ;

Kim, Jeongseok ;

Eom, Seung Hun ;

Lee, Woo-Hyung ;

Kang, In Nam ;

Lee, Soo-Hyoung .

ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (12) :6668-6674

[3]

He ZC, 2012, NAT PHOTONICS, V6, P591, DOI [10.1038/nphoton.2012.190, 10.1038/NPHOTON.2012.190]

[4] Improving the Ordering and Photovoltaic Properties by Extending π-Conjugated Area of Electron-Donating Units in Polymers with D-A Structure [J].

Huang, Ye ;

Guo, Xia ;

Liu, Feng ;

Huo, Lijun ;

Chen, Yuning ;

Russell, Thomas P. ;

Han, Charles C. ;

Li, Yongfang ;

Hou, Jianhui .

ADVANCED MATERIALS, 2012, 24 (25) :3383-3389

[5] Replacing Alkoxy Groups with Alkylthienyl Groups: A Feasible Approach To Improve the Properties of Photovoltaic Polymers [J].

Huo, Lijun ;

Zhang, Shaoqing ;

Guo, Xia ;

Xu, Feng ;

Li, Yongfang ;

Hou, Jianhui .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (41) :9697-9702

[6] PBDTTTZ: A Broad Band Gap Conjugated Polymer with High Photovoltaic Performance in Polymer Solar Cells [J].

Huo, Lijun ;

Guo, Xia ;

Zhang, Shaoqing ;

Li, Yongfang ;

Hou, Jianhui .

MACROMOLECULES, 2011, 44 (11) :4035-4037

[7] A Polybenzo[1,2-b:4,5-b′]dithiophene Derivative with Deep HOMO Level and Its Application in High-Performance Polymer Solar Cells [J].

Huo, Lijun ;

Hou, Jianhui ;

Zhang, Shaoqing ;

Chen, Hsiang-Yu ;

Yang, Yang .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (08) :1500-1503

[8] Improved Light Harvesting and Improved Efficiency by Insertion of an Optical Spacer (ZnO) in Solution-Processed Small-Molecule Solar Cells [J].

Kyaw, Aung Ko Ko ;

Wang, Dong Hwan ;

Wynands, David ;

Zhang, Jie ;

Thuc-Quyen Nguyen ;

Bazan, Guillermo C. ;

Heeger, Alan J. .

NANO LETTERS, 2013, 13 (08) :3796-3801

[9] Solution Processable Low-Voltage Organic Thin Film Transistors with High-k Relaxor Ferroelectric Polymer as Gate Insulator [J].

Li, Jinhua ;

Sun, Zhenhua ;

Yan, Feng .

ADVANCED MATERIALS, 2012, 24 (01) :88-+

[10] Highly Efficient Solar Cell Polymers Developed via Fine-Tuning of Structural and Electronic Properties [J].

Liang, Yongye ;

Feng, Danqin ;

Wu, Yue ;

Tsai, Szu-Ting ;

Li, Gang ;

Ray, Claire ;

Yu, Luping .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (22) :7792-7799

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