Solution processed bulk heterojunction organic solar cells using small organic semiconducting materials based on fluorene core unit

被引：8
作者：
Abdullah [1 ]
Ameen, Sadia [2 ]
Akhtar, M. Shaheer [3 ]
Fijahi, Lamiaa [1 ]
Kim, Eun-Bi [1 ]
Shin, Hyung-Shik [1 ]
机构：
[1] Chonbuk Natl Univ, Solar Energy Res Ctr, Energy Mat & Surface Sci Lab, Sch Chem Engn, Jeonju 54896, South Korea
[2] Chonbuk Natl Univ, Jeongeup Ind Acad Cooperat Support Ctr, Adv Mat & Devices Lab, Jeongeup Campus, Jeonju 56212, South Korea
[3] Chonbuk Natl Univ, New & Renewable Energy Mat Dev Ctr NewREC, Jeonju, South Korea
来源：
OPTICAL MATERIALS | 2019年 / 91卷
关键词：
Bulk heterojunction; Optical properties; Fluorene unit; Organic solar cells; Small molecules; SMALL-MOLECULE; CONJUGATED POLYMERS; PHASE-SEPARATION; PERFORMANCE; EFFICIENCY; CHROMOPHORE; ACCEPTOR; LAYER; ENDGROUPS;
D O I：
10.1016/j.optmat.2019.04.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper illustrates the synthesis of a new donor-pi-donor (D-pi-D) type fluorene and hexyl-bithiophene units based chromophore, named as 5',5'''-(9,9-dioctyl-9-H-fluorene-2-7-diyObis (5-hexyl-2,2'-bithiophene) (9RFL) via simple Suzuki coupling reaction. The synthesized 9RFL chromophore was applied as donor for solution-processed bulk-heterojunction (BHJ)-organic solar cells (OSCs). 9RFL chromophore showed the acceptable electrochemical behavior with estimated HOMO and LUMO energy levels of - 5.43 eV and - 3.50 eV, respectively. A reasonable power conversion efficiency (PCE) of similar to 2.13% along with high short circuit current density (J(sc)) of similar to 9.91 mA/cm(2), and open circuit voltage (V-OC) of similar to 0.718 V were attained by the fabricated BHJ-OSCs with the configuration of ITO/PEDOT:PSS/9RFL:PC61BM (1:3, w/w ratio)/Au.
引用
收藏
页码：425 / 432
页数：8
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