Influence of 4-tert-butylpyridine/guanidinium thiocyanate co-additives on band edge shift and recombination of dye-sensitized solar cells: experimental and theoretical aspects

2015 ◽  
Vol 185 ◽  
pp. 69-75 ◽  
Author(s):  
Yuqiao Wang ◽  
Jing Lu ◽  
Jie Yin ◽  
Gang Lü ◽  
Yingmin Cui ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Band Edge ◽  
Dye Sensitized ◽  
Guanidinium Thiocyanate ◽  
Sensitized Solar Cells

Low lying valence band edge materials based on copper oxide for tandem dye-sensitized solar cells

2020 ◽  
Vol 275 ◽  
pp. 128151
Author(s):  
Melinda Vajda ◽  
Daniel Ursu ◽  
Narcis Duteanu ◽  
Marinela Miclau
Keyword(s):  
Solar Cells ◽  
Copper Oxide ◽  
Valence Band ◽  
Dye Sensitized Solar Cells ◽  
Band Edge ◽  
Valence Band Edge ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Effect of Cations in Coadsorbate on Charge Recombination and Conduction Band Edge Movement in Dye-Sensitized Solar Cells

2010 ◽  
Vol 114 (15) ◽  
pp. 7190-7195 ◽  
Author(s):  
Xiaoming Ren ◽  
Quanyou Feng ◽  
Gang Zhou ◽  
Chun-Hui Huang ◽  
Zhong-Sheng Wang
Keyword(s):  
Solar Cells ◽  
Conduction Band ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Band Edge ◽  
Conduction Band Edge ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Band-Edge Engineered Hybrid Structures for Dye-Sensitized Solar Cells Based on SnO2Nanowires

2008 ◽  
Vol 18 (16) ◽  
pp. 2411-2418 ◽  
Author(s):  
Suresh Gubbala ◽  
Vidhya Chakrapani ◽  
Vivekanand Kumar ◽  
Mahendra K. Sunkara
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Band Edge ◽  
Hybrid Structures ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals In situ Evolved Gas Analysis of TMOS-based Gel Electrolytes Containing Guanidinium Thiocyanate for Quasi-solid-state Dye-sensitized Solar Cells by TG-FTIR and TG-MS

2018 ◽  
Vol 62 (4) ◽  
Author(s):  
Viola Nagygyörgy ◽  
Elias Stathatos ◽  
György Pokol ◽  
János Madarász
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Evolved Gas Analysis ◽  
Dye Sensitized Solar Cells ◽  
Decomposition Products ◽  
Evolved Gas ◽  
Dye Sensitized ◽  
Guanidinium Thiocyanate ◽  
Sensitized Solar Cells ◽  
Thermal Stability Of

A comparative study on thermal stability of hybrid (organic / inorganic) electrolytes for dye-sensitized solar cells (DSSCs) in various ethylene oxide oligomers / silica based gelly matrices, containing also some efficiency-promoter additives is presented. Using thermogravimetry combined with two evolved gas analytical (EGA-FTIR and EGA-MS) techniques, the released gases and volatile decomposition products from the composite electrolytes during dynamic heating programs have been identified and monitored. First methanol (arising from condensation of tetramethoxysilane, TMOS) and acetonitrile (solvent) are evolved followed by elongated release of 4-tert-butylpyridine, than carbonyl sulfide, which is one of the degradation products of guanidinium thiocyanate, and various alkyl iodides, as well as iodine, later various oxidized species with >C=O groups (arising from oxidative degradation of oligo(ethylene glycolic) parts, ammonia (originated from guanidine) have been observed and traced during the accelerated heating tests, before final burning out of the organic residue with CO2 evolution. Thermal behavior of pure guanidinium thiocyanate, one of the most important additives improving thermal stability of Grätzel type solar cells (DSSCs), combined with identification of its eight gaseous decomposition products and their release pattern is also reported.

Sign in / Sign up

Export Citation Format

Share Document