Anions for Near-Infrared Selective Organic Salt Photovoltaics

被引:17
|
作者
Traverse, Christopher J. [1 ]
Young, Margaret [1 ]
Suddard-Bangsund, John [1 ]
Patrick, Tyler [1 ]
Bates, Matthew [1 ]
Chen, Pei [1 ]
Wingate, Brian [2 ]
Lunt, Sophia Y. [1 ,3 ]
Anctil, Annick [4 ]
Lunt, Richard R. [1 ,5 ]
机构
[1] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Mech Engn, E Lansing, MI 48824 USA
[3] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA
[4] Michigan State Univ, Dept Civil & Environm Engn, E Lansing, MI 48824 USA
[5] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
来源
SCIENTIFIC REPORTS | 2017年 / 7卷
基金
美国国家科学基金会;
关键词
CARBORANE; MOLECULES; ENERGY; DYES;
D O I
10.1038/s41598-017-16539-3
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Organic molecular salts are an emerging and highly tunable class of materials for organic and transparent photovoltaics. In this work, we demonstrate novel phenyl borate and carborane-based anions paired with a near-infrared (NIR)-selective heptamethine cation. We further explore the effects of anion structures and functional groups on both device performance and physical properties. Changing the functional groups on the anion significantly alters the open circuit voltage and yields a clear dependence on electron withdrawing groups. Anion exchange is also shown to selectively alter the solubility and film surface energy of the resulting molecular salt, enabling the potential fabrication of solution-deposited cascade or multi-junction devices from orthogonal solvents. This study further expands the catalog and properties of organic salts for inexpensive, and stable NIR-selective molecular salt photovoltaics.
引用
收藏
页数:8
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