Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
81092 | Solar Energy Materials and Solar Cells | 2007 | 4 Pages |
Abstract
Nitrogen heterocyclic compounds, such as N-methylbenzimidazole (MBI), are commonly used as additives to electrolytes for dye-sensitized solar cells (DSCs), but the chemical transformation of additives in electrolyte solutions remains poorly understood. Solid crystalline compound (MBI)6(MBI-H+)2(Iā)(I3ā) (1) was isolated from different electrolytes for DSCs containing MBI as additive. The crystal structure of 1 was determined by single-crystal X-ray diffraction. In the crystal structure, 1 contains neutral and protonated MBI fragments; iodide and triiodide anions form infinite chains along the crystallographic a-axis. The role of the solvent and additives in the crystallization process in electrolytes is discussed.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Andreas Fischer, Henrik Pettersson, Anders Hagfeldt, Gerrit Boschloo, Lars Kloo, Mikhail Gorlov,