scholarly journals Ethynyl thiophene-appended unsymmetrical zinc porphyrin sensitizers for dye-sensitized solar cells

RSC Advances ◽  
2014 ◽  
Vol 4 (27) ◽  
pp. 14165-14175 ◽  
Author(s):  
P. Silviya Reeta ◽  
L. Giribabu ◽  
S. Senthilarasu ◽  
Min-Hung Hsu ◽  
D. Kishore Kumar ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Malonic Acid ◽  
Dye Sensitized Solar Cells ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Anchoring Group ◽  
Sensitized Solar Cells

Zn porphyrin sensitizers with ethynyl thiophene linker, pyrene/fluorene donors and cyanoacrylic or malonic acid anchoring group were synthesized for DSSC applications. Conversion efficiency up to 3.14% was exhibited.

Push–pull porphyrins with different anchoring group orientations for fully printable monolithic dye-sensitized solar cells with mesoscopic carbon counter electrodes

2015 ◽  
Vol 39 (7) ◽  
pp. 5231-5239 ◽  
Author(s):  
Jiangzhao Chen ◽  
Yusong Sheng ◽  
Songguk Ko ◽  
Linfeng Liu ◽  
Hongwei Han ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Anchoring Group ◽  
Sensitized Solar Cells

Compared with WH-C4 and WH-C1, WH-C6- and WH-C7-sensitized devices show a significantly reduced Voc, Jsc and power conversion efficiency (η).

Theoretical investigation of the charge-transfer properties in different meso-linked zinc porphyrins for highly efficient dye-sensitized solar cells

2014 ◽  
Vol 43 (24) ◽  
pp. 9166-9176 ◽  
Author(s):  
Supawadee Namuangruk ◽  
Kanokkorn Sirithip ◽  
Rattanawelee Rattanatwan ◽  
Tinnagon Keawin ◽  
Nawee Kungwan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Theoretical Investigation ◽  
Intramolecular Charge Transfer ◽  
Dye Sensitized Solar Cells ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Anchoring Group ◽  
Sensitized Solar Cells ◽  
Transfer Properties

In an attempt to improve the photoinduced intramolecular-charge transfer ability of a meso-linked zinc porphyrin by introducing CN to the anchoring group.

Photovoltaic performance and power conversion efficiency prediction of double fence porphyrins

2021 ◽  
Author(s):  
Canpu Yang ◽  
Peng Song ◽  
Reda El-Shishtawy ◽  
Fengcai Ma ◽  
Yuanzuo Li
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

To explore high efficiency dye-sensitized solar cells (DSSCs), two experimentally derived (single fence and double fence porphyrins) and two theoretically designed zinc porphyrin molecules with D-D-π-A-A configurations were studied. Density...

Co-sensitization of free-base and zinc porphyrins: An effective approach to improve the photon-to-current conversion efficiency of dye-sensitized solar cells

2015 ◽  
Vol 19 (05) ◽  
pp. 695-707 ◽  
Author(s):  
Sandeep B. Mane ◽  
Liyang Luo ◽  
Hsin-Han Tsai ◽  
Chen-Hsiung Hung
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Density Functional ◽  
Dye Sensitized Solar Cells ◽  
Visible Region ◽  
Free Base ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Zinc Porphyrins ◽  
Sensitized Solar Cells

Co-sensitization of two or more sensitizers with complementary absorption profiles had been utilized as an imperative tool to achieve panchromatic sensitization in dye-sensitized solar cells. The highly efficient dye-sensitized solar cells consist of a co-sensitization system comprising of a mixture of porphyrin and organic dye. We have prepared four novel free-base and zinc porphyrins in minimum steps and examined their individual as well as co-sensitized performance in dye-sensitized solar cells. The UV-visible spectrum suggests that upon zinc insertion the absorption wavelength is red-shifted by 10 nm in both Soret and Q-band region. The density functional theory (DFT) calculations revealed that the presence of an electron withdrawing cyanoacrylic acid as the anchoring group has pronounced effect on the charge distribution. IPCE spectra suggest that the co-sensitization of a free-base porphyrin with a zinc porphyrin resulted in panchromatic absorption in whole visible region. The device made with Mix-2, which is composed from the free-base porphyrin N4CN and the zinc porphyrin N4ZnCN gave the best performance with an overall photon-to-current conversion efficiency of 4.18%, with Jsc of 10.4 mA.cm-2, Voc of 0.56 V and fill factor of 72%.

Pyrazino-[2,3-f][1,10]phenanthroline as a new anchoring group of organic dyes for dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 46206-46209 ◽  
Author(s):  
Li-Peng Zhang ◽  
Ke-Jian Jiang ◽  
Qiang Chen ◽  
Gang Li ◽  
Lian-Ming Yang
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Dyes ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Donor Acceptor ◽  
Anchoring Group ◽  
Sensitized Solar Cells

Two novel donor–acceptor organic dyes (PPL-1 and PPL-2) with pyrazino-[2,3-f][1,10]phenanthroline as an electron-withdrawing anchoring group displayed a promising power conversion efficiency of 4.04% under standard AM 1.5 conditions.

Mesoporous Bi2S3 nanorods with graphene-assistance as low-cost counter-electrode materials in dye-sensitized solar cells

Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14433-14440 ◽  
Author(s):  
Sheng-qi Guo ◽  
Tian-zeng Jing ◽  
Xiao Zhang ◽  
Xiao-bing Yang ◽  
Zhi-hao Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Counter Electrode ◽  
Electrode Materials ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Hydrothermal Conditions ◽  
Catalytic Activities ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this work, we report the synthesis of mesoporous Bi2S3 nanorods under hydrothermal conditions without additives, and investigated their catalytic activities as the CE in DSCs by I–V curves and tested conversion efficiency.

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