scholarly journals Methodologies in Spectral Tuning of DSSC Chromophores through Rational Design and Chemical-Structure Engineering

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4024 ◽  
Author(s):  
Qudsia Arooj ◽  
Gregory J. Wilson ◽  
Feng Wang
Keyword(s):  
Solar Cell ◽  
Rational Design ◽  
Molecular Design ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Structure Property ◽  
Design Strategies ◽  
Design And Synthesis ◽  
Dye Sensitized ◽  
Structure Property Relationships

The investigation of new photosensitizers for Grätzel-type organic dye-sensitized solar cells (DSSCs) remains a topic of interest for researchers of alternative solar cell materials. Over the past 20 years, considerable and increasing research efforts have been devoted to the design and synthesis of new materials, based on “donor, π-conjugated bridge, acceptor” (D–π–A) organic dye photosensitizers. In this paper, the computational chemistry methods are outlined and the design of organic sensitizers (compounds, dyes) is discussed. With reference to recent literature reports, rational molecular design is demonstrated as an effective process to study structure–property relationships. Examples from established organic dye sensitizer structures, such as TA-St-CA, Carbz-PAHTDDT (S9), and metalloporphyrin (PZn-EDOT), are used as reference structures for an examination of this concept applied to generate systematically modified structural derivatives and hence new photosensitizers (i.e., dyes). Using computer-aided rational design (CARD), the in silico design of new chromophores targeted an improvement in spectral properties via the tuning of electronic structures by substitution of molecular fragments, as evaluated by the calculation of absorption profiles. This mini review provides important rational design strategies for engineering new organic light-absorbing compounds towards improved spectral absorption and related optoelectronic properties of chromophores for photovoltaic applications, including the dye-sensitized solar cell (DSSC).

Improvement of D–π–A organic dye-based dye-sensitized solar cell performance by simple triphenylamine donor substitutions on the π-linker of the dye

2017 ◽  
Vol 1 (6) ◽  
pp. 1059-1072 ◽  
Author(s):  
N. Prachumrak ◽  
T. Sudyoadsuk ◽  
A. Thangthong ◽  
P. Nalaoh ◽  
S. Jungsuttiwong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Cell Performance ◽  
Dye Sensitized Solar Cell ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Three new D–π–A dyes containing different numbers of triphenylamine donor substitutions on a π-linker were synthesized for dye-sensitized solar cells.

scholarly journals Exploring Structure-Property Relationships in a Bio-Inspired Family of Bipodal and Electronically-Coupled Bistriphenylamine Dyes for Dye-Sensitized Solar Cell Applications

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2260
Author(s):  
Tamara Al-Faouri ◽  
Francis L. Buguis ◽  
Saba Azizi Soldouz ◽  
Olga V. Sarycheva ◽  
Burhan A. Hussein ◽  
...  
Keyword(s):  
Electronic Communication ◽  
Organic Dyes ◽  
Dye Sensitized Solar Cells ◽  
Structure Property ◽  
Cyanoacetic Acid ◽  
High Performing ◽  
Dye Sensitized ◽  
Structure Property Relationships ◽  
Sensitized Solar Cells

A bio-inspired family of organic dyes with bichromic-bipodal architectures were synthesized and tested in dye-sensitized solar cells (DSSC). These dyes are comprised of a D-π-D-A motif with two triphenylamine (TPA) units acting as donors (D) and two cyanoacetic acid acceptors (A) capable of binding to a titania semiconductor. The role of the thiophene π-spacer bridging the two TPA units was examined and the distal TPA (relative to TiO2) was modified with various substituents (-H, -OMe, -SMe, -OHex, -3-thienyl) and contrasted against benchmark L1. It was found that the two TPA donor units could be tuned independently, where π-spacers can tune the proximal TPA and R-substituents can tune the distal TPA. The highest performing DSSCs were those with -SMe, 3-thienyl, and -H substituents, and those with one spacer or no spacers. The donating abilities of R-substituents was important, but their interactions with the electrolyte was more significant in producing high performing DSSCs. The introduction of one π-spacer provided favourable electronic communication within the dye, but more than one was not advantageous.

scholarly journals Molecular design and synthesis of ruthenium(ii) sensitizers for highly efficient dye-sensitized solar cells

2011 ◽  
Vol 21 (33) ◽  
pp. 12389 ◽  
Author(s):  
A. Anthonysamy ◽  
Y. Lee ◽  
B. Karunagaran ◽  
V. Ganapathy ◽  
S.-W. Rhee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Molecular Design ◽  
Dye Sensitized Solar Cells ◽  
Design And Synthesis ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
Sensitized Solar Cells

3D bicontinuous SnO2/TiO2 core/shell structures for highly efficient organic dye-sensitized solar cell electrodes

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74003-74008 ◽  
Author(s):  
Chang-Yeol Cho ◽  
Sujin Baek ◽  
Kiwon Kim ◽  
Jun Hyuk Moon
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Shell Structures ◽  
Hybrid Structures ◽  
Dye Sensitized Solar Cell ◽  
Core Shell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

SnO2/TiO2 core/shell hybrid structures with a 3D bicontinuous morphology were demonstrated as an electrode for dye-sensitized solar cells.

scholarly journals Fabrication of dye-sensitized solar cells from thin films of zinc oxide nanocrystalline particles and organic dye

BIBECHANA ◽  
2014 ◽  
Vol 11 ◽  
pp. 53-59
Author(s):  
Bhim P Kafle ◽  
Babu R Pokhrel ◽  
Rajendra Gyawali ◽  
Prakash Lamichhane ◽  
Ravi M Adhikari
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Solar Cells ◽  
Solar Cell ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Zno Film ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Photo Current

Photovoltaic solar modules, which are mostly made of silicon based solar cells, are still expensive to the common people of Nepal. The high cost is, mainly, due to the processing difficulties to get pure crystalline silicon. Here, we present results on devising efficient and low-cost dye sensitized solar cells (DSSCs). The solar cells were fabricated from transparent thin film of zinc oxide (ZnO), as a semiconductor, on top of which a thin layer of synthetic organic dye was deposited for efficient light harvesting. In order to achieve the films with optimum conditions for solar cell fabrication, we prepared transparent thin films of ZnO of various thicknesses and characterized by measuring their light transmittance by UV-Visible spectrophotometry. The results clearly show variation in transmittance curves with variation in film’s thickness. Also for finding appropriate sensitizer for ZnO nanoparticles, we extensively investigated the light absorbance of synthetic organic dyes. Among the dye species investigated, Green-VS, Patent-Blue, and Black-ADLI show strong absorbance over the wide range in the visible spectrum, demonstrating prospect of utilizing for DSSCs. Then prototype solar cells from ZnO film with various thicknesses were constructed and were sensitized with the mixture of Green-VS and Black-ADLI dyes (with 1:1 ratio). The measured photo-voltage and photo-current from solar cell, from our modest ZnO film, after irradiation with 200 W commercial bulb (calibrated with Pyranometer) as a light source, were about 20 mV and 1 μA, respectively. Also, with increment of the power of radiation both the measured photo-current and photo-voltage increase. Performance of the cell in real sun condition has also been made. With the solar radiation power of 930 W, the observed photo-voltage and photo-current were ca. 230 mV and 50 μA, respectively. DOI: http://dx.doi.org/10.3126/bibechana.v11i0.10380   BIBECHANA 11(1) (2014) 53-59

Sign in / Sign up

Export Citation Format

Share Document