QUASI-SOLID-STATE DYE-SENSITIZED SOLAR CELLS WITH A HIGH MOLECULAR GEL POLYMER ELECTROLYTE BASED ON PEO/P(VDF-HFP)

2010 ◽  
Vol 09 (04) ◽  
pp. 257-261 ◽  
Author(s):  
D. W. ZHANG ◽  
X. D. LI ◽  
S. M. HUANG ◽  
Z. A. WANG ◽  
J. H. SHI ◽  
...  

Quasi-solid-state dye-sensitized solar cells were fabricated using a high molecular polymer redox electrolyte. Poly(ethylene oxide) (PEO) and Poly(vinylidenefluoride-co-hexafluoropropylene) (P(VDF-HFP)) were used to form a stable quasi-solid structure and a three-dimensional gel polymer network structure. The polymer electrolytes were composed of LiI , I2 , and DMPII in the mixture of propylene carbonate (PC) and γ-butyrolactone (GBL) with different volume ratios. A metal-free organic dye (indoline dye D102) was used as a sensitizer. The ionic conductivity of the gel polymer electrolytes was measured with Electrochemical Impedance Spectroscopy (EIS). The dependence of the ionic conductivity on the volume ratio of PC to GBL was investigated. The volume ratio of the mix solvent, weight ratio of PEO/P(VDF-HFP), and the weight ratio of TiO2 fillers were optimized. The optimized quasi-solid-state cell exhibited an efficiency of 5.49% at full sunlight (air mass 1.5, 60 mW/cm2) irradiation.

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4115 ◽  
Author(s):  
Aimi Mahirah Zulkifli ◽  
Nur Izzah Aqilah Mat Said ◽  
Shujahadeen Bakr Aziz ◽  
Elham Mohammed Ali Dannoun ◽  
Shameer Hisham ◽  
...  

In the present work, phthaloyl chitosan (PhCh)-based gel polymer electrolytes (GPEs) were prepared using dimethylformamide (DMF) as a solvent, ethyl carbonate (EC) as a co-solvent, and a set of five quaternaries of potassium iodide (KI) as a doping salt, which is a mixed composition of iodine (I2). The prepared GPEs were applied to dye-sensitized solar cells (DSSC) to observe the effectiveness of the electrolyte, using mesoporous TiO2, which was sensitized with N3 dye as the sensitizer. The incorporation of the potassium iodide-based redox couple in a polymer electrolyte is fabricated for dye-sensitized solar cells (DSSCs). The number of compositions was based on the chemical equation, which is 1:1 for KI:I2. The electrical performance of prepared GPE systems have been assessed using electrical impedance spectroscopy (EIS), and dielectric permittivity. The improvement in the ionic conductivity of PhCh-based GPE was observed with the rise of salt concentration, and the maximum ionic conductivity (4.94 × 10−2 S cm−1) was achieved for the 0.0012 mol of KI:I2. The study of dielectric permittivity displays that ions with a high dielectric constant are associated with a high concentration of added ions. Furthermore, the gel polymer electrolyte samples were applied to DSSCs to detect the conversion effectiveness of the electrolytes. For electrolytes containing various content of KI:I2 the highest conversion efficiency (η%) of DSSC obtained was 3.57% with a short circuit current density (Jsc) of 20.33 mA cm−2, open-circuit voltage (Voc) of 0.37 V, fill factor (FF) of 0.47, as well as a conductivity of 2.08 × 10−2 S cm−1.


2012 ◽  
Vol 13 (11) ◽  
pp. 2561-2567 ◽  
Author(s):  
Yanzheng Cui ◽  
Jing Zhang ◽  
Xueni Zhang ◽  
Jiangwei Feng ◽  
Yang Hong ◽  
...  

2007 ◽  
Vol 111 (13) ◽  
pp. 5222-5228 ◽  
Author(s):  
Moon-Sung Kang ◽  
Jong Hak Kim ◽  
Jongok Won ◽  
Yong Soo Kang

2015 ◽  
Vol 39 (11) ◽  
pp. 8602-8613 ◽  
Author(s):  
Karuppanan Prabakaran ◽  
Smita Mohanty ◽  
Sanjay Kumar Nayak

Exfoliated MMT nanoplatelet incorporated PEO/PVdF–HFP electrolyte and TiO2/ZnO photoanode based DSSCs showed an improved solar energy conversion efficiency of about 3.8%.


RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 103683-103691 ◽  
Author(s):  
T. M. W. J. Bandara ◽  
H. D. N. S. Fernando ◽  
M. Furlani ◽  
I. Albinsson ◽  
M. A. K. L. Dissanayake ◽  
...  

Performance enhancers improved the efficiency in LiI based and RbI based solar cells by 449 and 35.7% respectively.


2021 ◽  
Vol 363 ◽  
pp. 115592
Author(s):  
Norshahirah M. Saidi ◽  
Zhi Ling Goh ◽  
Hanani Mohamad Arif ◽  
N.K. Farhana ◽  
S. Ramesh ◽  
...  

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