Extraction and purification of Lawsonia inermis (laali) dyes for applications in dye-sensitized solar cell
نویسندگان
چکیده
Abstract This study explores the extraction of dyes from Lawsonia inermis (Laali) and effects purification on for solar cell applications. The TiO 2 thin films were synthesized through Doctor Blade’s technique while dye was applied film using a simple drop-casting method. Characterization doctor-blade deposited thin-film XRD confirmed successful deposition anatase crystallite structure with mesoporous morphology SEM analysis. UV-Vis, FTIR, EIS characterizations showed increase in band gap, adequate functional groups lower charge resistance respectively after purification, which could contribute positively to enhancing efficiency devices.
منابع مشابه
Theoretical studies on the quinoidal thiophene based dyes for dye sensitized solar cell and NLO applications.
A series of quinoidal thiophene based dye molecules were designed and their optoelectronic properties were studied for dye sensitized solar cell (DSSC) applications. The efficiency of the designed dye molecules was analyzed using various parameters such as the HOMO-LUMO energy gap, absorption spectra, light harvesting efficiency (LHE), exciton biding energy (Eb) and free energy change for elect...
متن کاملSynthesis and Application of Two Organic Dyes for Dye-Sensitized Solar Cells
In the present study, two new organic dyes based on indigo were prepared and used as sensitizers in dye-sensitized solar cells. To this end, indoxyl was utilized as the electron donor and cyanoacrylic acid as the electron acceptor anchoring groups. These dyes together with their corresponding intermediates were purified and characterized by FTIR, 1HNMR, 13CNMR, elemental analysis and UV-Visible...
متن کاملSynthesis and Application of Two Organic Dyes Based on Indoline in Dye-Sensitized Solar Cells
In this paper we sensitized two new organic days dye 1 and dye 2 based on thioindigo with phenothiazine as the electron donor group. We used acrylic acid and cyanoacrylic acid as the electron acceptor anchoring group in dye 1 and dye 2 respectively. The proposed dyes were sensitized from phenothiazine as the starting material by standard reactions and characterized by different techniques such ...
متن کاملDye-Sensitized Solar Cell for Energy Harvesting Applications
A dye-sensitized solar cell (DSC) has unique properties that the cell performance does not readily decrease even at higher incident light angles compared with a Si solar cell and dose not decrease or rather increases under low light conditions. Fujikura is developing new applications of DSC by taking advantages of these properties to the field of “Energy Harvesting” where rapid growth of market...
متن کاملDye-sensitized CuAlO2 photocathodes for tandem solar cell applications
Dye-sensitized solar cells (DSCs) using the p-type semiconductor CuAlO2, in conjunction with a highly effective hole injecting dye and an iodide-triiodide-based electrolyte have been produced, demonstrating photocathodic behavior. An improved open-circuit voltage (VOC) of 333 mV was observed, compared to analogous devices using NiO, which can be explained by the CuAlO2 valence-band energy, whic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IOP conference series
سال: 2023
ISSN: ['1757-899X', '1757-8981']
DOI: https://doi.org/10.1088/1755-1315/1178/1/012007