Isomer Dependence of Efficiency and Charge Recombination in Dye-Sensitized Solar Cells Using Ru Complex Dyes Bearing Halogen Substituents

被引：10

作者：

Chadwick, Nina ^{[1
]}

Kumar, D. Kishore ^{[2
]}

Ivaturi, Aruna ^{[1
,2
]}

Grew, Benjamin A. ^{[2
]}

Upadhyaya, Hari M. ^{[2
,3
]}

Yellowlees, Lesley J. ^{[1
]}

Robertson, Neil ^{[1
]}

机构：

[1] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland

[2] Univ Edinburgh, EaStCHEM, Edinburgh EH9 3JJ, Midlothian, Scotland

[3] Heriot Watt Univ, Sch Engn & Phys Sci, Inst Mech Proc & Energy Engn, Energy Convers Lab, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2015年 / 29期

基金：

英国工程与自然科学研究理事会;

关键词：

Solar cells; Dye-sensitised solar cells; Charge recombination; Ruthenium complexes; MOLECULAR CALCULATIONS; RUTHENIUM SENSITIZERS; ATOMS; TIO2; ELECTROLYTE; PERFORMANCE; REDOX; FILM;

D O I：

10.1002/ejic.201500633

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We have synthesised Ru(H-2-dcbpy)(N,N-Y-2-bpy)(NCS)(2) dyes (where N = 4, 5; Y = F, Cl, Br; N is the position on the bipyridyl ring where the halogen substituent is located) for dye-sensitised solar cells. We show that careful consideration of the position of the substituent, in conjunction with the nature of the substituents, on a bpy ring is important to optimize the solar cells performance. Changing the position (from 4,4 to 5,5) along with the nature of the halogen (F, Cl, or Br) substituents were observed to cause changes in the electronic and spectroscopic properties of the dyes as well as influence the recombination rates at the TiO2-dyes-I-/I-3(-) interface affecting the performance of the dyes in DSSCs.

引用

页码：4878 / 4884

页数：7

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