Panchromatic co-sensitization of porphyrin-sensitized solar cells to harvest near-infrared light beyond 900 nm

被引：79

作者：

Shiu, Jia-Wei ^{[1
,2
]}

Chang, Yen-Cheng ^{[3
]}

Chan, Chien-Yi ^{[1
,2
]}

Wu, Hui-Ping ^{[1
,2
]}

Hsu, Hung-Yu ^{[1
,2
]}

Wang, Chin-Li ^{[3
]}

Lin, Ching-Yao ^{[3
]}

Diau, Eric Wei-Guang ^{[1
,2
]}

机构：

[1] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30010, Taiwan

[2] Natl Chiao Tung Univ, Inst Mol Sci, Hsinchu 30010, Taiwan

[3] Natl Chi Nan Univ, Dept Appl Chem, Puli 54561, Nantou Hsien, Taiwan

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 04期

关键词：

DYE; EFFICIENCY; PERFORMANCE; DEPOSITION; ABILITY; DESIGN; DONOR;

D O I：

10.1039/c4ta06589a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We designed a dimeric porphyrin dye (LDD1) based on an efficient push-pull zinc porphyrin (LD14) with extended pi-conjugation through coupling of two zinc porphine cores via an acetylene bridge at the meso position of the porphyrin to extend the absorption spectrum effectively into the near infrared region. The effect of dye aggregation among porphyrin molecules was significantly suppressed when the LDD1 and LD14 dyes were co-sensitized on a nanocrystalline TiO2 film in a dye-sensitized photovoltaic system. The light-harvesting ability of the device exhibits a panchromatic feature covering a broad spectral region from 400 nmto 900 nm, which results in a short-circuit current density of 21.3 mA cm(-2) and a power conversion efficiency of 10.4% in an iodine-based solar cell.

引用

页码：1417 / 1420

页数：4

共 23 条

[21] Porphyrin-Sensitized Solar Cells with Cobalt (II/III)-Based Redox Electrolyte Exceed 12 Percent Efficiency [J].