Simple BODIPY dyes as suitable electron-donors for organic bulk heterojunction photovoltaic cells

被引：23

作者：

Aguiar, Antonio ^{[1
]}

Farinhas, Joana ^{[2
]}

da Silva, Wanderson ^{[1
]}

Susano, Maria ^{[3
]}

Silva, Manuela Ramos ^{[3
]}

Alcacer, Luis ^{[2
]}

Kumar, Santosh ^{[1
]}

Brett, Christopher M. A. ^{[1
]}

Morgado, Jorge ^{[2
,4
]}

Sobral, Abilio J. F. N. ^{[1
]}

机构：

[1] Univ Coimbra, FCTUC, Chem Dept, P-3004535 Coimbra, Portugal

[2] Inst Super Tecn, Inst Telecomunicacoes, Av Rovisco Pais 1, P-1049001 Lisbon, Portugal

[3] Univ Coimbra, Dept Phys, CFisUC, P-3004516 Coimbra, Portugal

[4] Univ Lisbon, Inst Super Tecn, Dept Bioengn, Av Rovisco Pais 1, P-1049001 Lisbon, Portugal

来源：

DYES AND PIGMENTS | 2020年 / 172卷

关键词：

BODIPY dyes; Small molecules; Optoelectronic properties; Organic photovoltaic cells; Photovoltaic performance; SOLAR-CELLS; PERFORMANCE; FLUORESCENT; DESIGN; PROBES; SERIES;

D O I：

10.1016/j.dyepig.2019.107842

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work we present the synthesis and characterization (including the report of two new crystal structures) of a series of meso-substituted boron-dipyrromethene (BODIPY) molecules. With an accessible synthesis, these simple BODIPYs have characteristics that par with those BODIPY's having more complex structures, what makes them very interesting materials for industrial production. The photovoltaic performance of the synthesized BODIPY's was evaluated in bulk heterojunction organic solar cells, where they were used as electron-donors. We found that the presence of electron-withdrawing groups has a detrimental effect on the photovoltaic performance, while the meso-free structure shows an improved efficiency in comparison with the meso-substituted BODIPYs. We also studied the origin of the meso-unsubstituted derivative, elucidating at least one of its formation processes, which can open a new way of BODIPY synthesis.

引用

页数：11

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