Toward Highly Sensitive Polymer Photodetectors by Molecular Engineering

Luozheng Zhang; Tingbin Yang; Liang Shen; Yanjun Fang; Li Dang; Nanjia Zhou; Xugang Guo; Ziruo Hong; Yang Yang; Hongbin Wu; Jinsong Huang; Yongye Liang

doi:10.1002/adma.201502267

Toward Highly Sensitive Polymer Photodetectors by Molecular Engineering

Adv Mater. 2015 Nov 4;27(41):6496-503. doi: 10.1002/adma.201502267. Epub 2015 Sep 29.

Authors

Luozheng Zhang¹, Tingbin Yang¹, Liang Shen², Yanjun Fang², Li Dang³, Nanjia Zhou⁴, Xugang Guo¹, Ziruo Hong⁵, Yang Yang⁵, Hongbin Wu⁶, Jinsong Huang², Yongye Liang¹

Affiliations

¹ Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen, 518055, P. R. China.
² Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
³ Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, P. R. China.
⁴ Department of Chemistry and the Materials Research Center, the Argonne-Northwestern Solar Energy Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.
⁵ Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA.
⁶ State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.

PMID: 26418337
DOI: 10.1002/adma.201502267

Abstract

Modified 3,4-ethylenedioxythiophene is employed as the conjugated side chain in conjugated polymers, which can significantly depress the dark current of the polymer photodetectors with little associated decrease in photovoltaic properties, thus enhanceing the detectivities. This approach can be applied to a variety of conjugated polymers covering a photoresponse range from UV to NIR.

Keywords: 3,4-ethylenedioxythiophene; conjugated polymers; molecular engineering; polymer photodetectors.