Effects of Ga doping and hollow structure on the band-structures and photovoltaic properties of SnO2 photoanode dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 93765-93772 ◽  
Author(s):  
Yandong Duan ◽  
Jiaxin Zheng ◽  
Nianqing Fu ◽  
Jiangtao Hu ◽  
Tongchao Liu ◽  
...  
Keyword(s):  
High Power ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Hollow Structure ◽  
High Power Conversion Efficiency ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Doping Technique ◽  
Sensitized Solar Cells ◽  
Ga Doping

By introducing the rough hollow microspheres structure and Ga-doping technique, a high power conversion efficiency (η) up to 7.11% is obtained for SnO2 based DSSCs.

scholarly journals The double perovskite structure effect of a novel La2CuNiO6-ZnSe-graphene nanocatalytic composite for dye sensitized solar cells as a freestanding counter electrode

2019 ◽  
Vol 18 (6) ◽  
pp. 1389-1397 ◽  
Author(s):  
Won-Chun Oh ◽  
Kwang Youn Cho ◽  
Chong Hun Jung ◽  
Yonrapach Areerob
Keyword(s):  
Solar Cells ◽  
High Power ◽  
Counter Electrode ◽  
Low Cost ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Double Perovskite ◽  
High Power Conversion Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Currently, the development of sensitized solar cells (DSSCs) with high power conversion efficiency and low cost is a major challenge in the academic and industrial fields.

Porphyrin sensitizers with modified indoline donors for dye-sensitized solar cells

2018 ◽  
Vol 6 (15) ◽  
pp. 3927-3936 ◽  
Author(s):  
Heli Song ◽  
Jing Zhang ◽  
Jiamin Jin ◽  
Haifeng Wang ◽  
Yongshu Xie
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Power ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
High Power Conversion Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

A high power conversion efficiency exceeding 10% was achieved for novel porphyrin sensitizers with modified indoline donors.

Optoelectronic and photovoltaic properties of graphene quantum dot–polyaniline nanostructures

2015 ◽  
Vol 3 (41) ◽  
pp. 20736-20748 ◽  
Author(s):  
Nabasmita Maity ◽  
Atanu Kuila ◽  
Sandip Das ◽  
Debasish Mandal ◽  
Arnab Shit ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Power Conversion ◽  
Graphene Quantum Dots ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Aqueous Dispersions ◽  
Graphene Quantum Dot ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In aqueous dispersions of graphene quantum dots (GQDs), aniline is in situ polymerized to produce polyaniline-GQDs hybrids and dye-sensitized solar cells fabricated with the hybrids indicate highest power conversion efficiency of 3.12%.

scholarly journals Effect of π-Conjugated Spacer in N-Alkylphenoxazine-Based Sensitizers Containing Double Anchors for Dye-Sensitized Solar Cells

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1304
Author(s):  
Yung-Sheng Yen ◽  
Velu Indumathi
Keyword(s):  
Solar Cells ◽  
Electrochemical Impedance ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Co Adsorption ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
The Impact ◽  
Sensitized Solar Cells

A series of novel double-anchoring dyes for phenoxazine-based organic dyes with two 2-cyanoacetic acid acceptors/anchors, and the inclusion of a 2-ethylhexyl chain at the nitrogen atom of the phenoxazine that is connected with furan, thiophene, and 3-hexylthiophene as a linker, are used as sensitizers for dye-sensitized solar cells. The double-anchoring dye exhibits strong electronic coupling with TiO2, provided that there is an efficient charge injection rate. The result showed that the power conversion efficiency of DP-2 with thiophene linker-based cell reached 3.80% higher than that of DP-1 with furan linker (η = 1.53%) under standard illumination. The photovoltaic properties are further tuned by co-adsorption strategy, which improved power conversion efficiencies slightly. Further molecular theoretical computation and electrochemical impedance spectroscopy analysis of the dyes provide further insight into the molecular geometry and the impact of the different π-conjugated spacers on the photophysical and photovoltaic performance.

scholarly journals Synthesis and Characterization of TiO2 thin film Electrode based Dye Sensitized Solar Cell

2020 ◽  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Power ◽  
Counter Electrode ◽  
Electrochemical Impedance ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
High Power Conversion Efficiency ◽  
Electrical Equivalent Circuit ◽  
Dye Sensitized

Dye-Sensitized Solar Cells (DSSCs) are prominent alternative devices to conventional p-n junction silicon based solar cells because of their low fabrication cost and high power conversion efficiency, good cost/efficiency ratio. In the present work, DSSC devices were made-up with fluorine doped tin oxide (FTO) glass substrate, a TiO2 compact layer was deposited on FTO, Ruthenium(II) dye (N719), an iodide - triiodide electrolyte and a platinum (Pt) counter electrode. Photo anode with thin film layers of TiO2 and Pt counter electrode (photo-cathode) were prepared. Field emission electron microscope (FESEM) was employed to investigate the surface morphology of TiO2 layers. The DSSC device efficiency was evaluated by J-V characteristics. Fabricated devices were exhibited high power conversion efficiencies. The electrochemical impedance characteristics were analyzed by fitting the experimental results to the corresponding electrical equivalent circuit simulated data.

Judicious engineering of a metal-free perylene dye for high-efficiency dye sensitized solar cells: the control of excited state and charge carrier dynamics

2017 ◽  
Vol 5 (7) ◽  
pp. 3514-3522 ◽  
Author(s):  
Lin Yang ◽  
Shu Chen ◽  
Jing Zhang ◽  
Junting Wang ◽  
Min Zhang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Carrier Dynamics ◽  
High Power Conversion Efficiency ◽  
Dye Sensitized ◽  
Charge Carrier Dynamics ◽  
Donor Acceptor ◽  
Perylene Dye ◽  
Sensitized Solar Cells

A donor–acceptor perylene dye constructed with a bulky perylene based electron donor has achieved a high power conversion efficiency of 11.5% under the air mass 1.5 global conditions.

scholarly journals Synthesis and Study of the Physical and Photovoltaic Properties of Novel Heteroleptic Ruthenium(II) Complexes Ligated with Highly π-Conjugated Bipyridine Ancillary and Phenanthroline Anchoring Ligand for Dye-Sensitized Solar Cells

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Hyejeong Lee ◽  
Jinhyung Seo ◽  
Mingyeong Jeong ◽  
Seo Yeong Na ◽  
Byoungchoo Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Methoxy Group ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Ancillary Ligand ◽  
Photovoltaic Properties ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Six new heteroleptic ruthenium(II) complexes (JM1–JM6), each bearing a highly π-conjugated bipyridine ancillary ligand (a methoxy-substituted analog (L1) and a phenanthroline-type anchoring ligand (L2) (dcphen or dcvphen; [Ru(L)2(NCS)2][TBA]2; L1 = 4,4′-bis{2-(3,4-dimethoxyphenyl)ethenyl}-2,2′-bipyridine (dmpbpy), 4,4′-bis{2-(1,1′-biphenyl)-4-ylethenyl}-2,2′-bipyridine (bpbpy), or 4,4′-bis{2-(4′-methoxy-[1,1′-biphenyl]-4-ylethenyl}-2,2′-bipyridine (mbpbpy); L2 = 4,7-dicarboxy-1,10-phenanthroline (dcphen) or 4,7-bis(E-carboxyvinyl)-1,10-phenanthroline (dcvphen)) were synthesized, and their physical and photovoltaic properties were investigated. Various dye-sensitized solar cells (DSSCs) were fabricated using heteroleptic ruthenium(II) complexes. Ruthenium(II) complex JM1, ligated to dmpbpy (ancillary) and dcphen (anchoring) ligands, exhibited the maximum power conversion efficiency (PCE) value of 3.40%, which was approximately 71% of the efficiency exhibited by the commercially available N719-sensitized solar cells. Ruthenium(II) complex JM5, ligated to mbpbpy (ancillary) and dcphen (anchoring) ligands, exhibited the second-best PCE value (2.52%), and ruthenium(II) complex JM3, ligated to bpbpy (ancillary) and dcphen (anchoring) ligands, exhibited a PCE value of 1.45%. It was observed that the PCE values of the DSSCs could be significantly improved by introducing the electron-donating methoxy group at proper positions of the ancillary ligands present in the heteroleptic ruthenium(II) complexes (such as JM1 and JM5).

Sign in / Sign up

Export Citation Format

Share Document