Dye Aggregation Effect on Interfacial Electron-Transfer Dynamics in Zinc Phthalocyanine-Sensitized Solar Cells

2014 ◽  
Vol 118 (31) ◽  
pp. 17205-17212 ◽  
Author(s):  
Hiroyuki Matsuzaki ◽  
Takurou N. Murakami ◽  
Naruhiko Masaki ◽  
Akihiro Furube ◽  
Mutsumi Kimura ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Zinc Phthalocyanine ◽  
Interfacial Electron Transfer ◽  
Aggregation Effect ◽  
Dye Aggregation ◽  
Sensitized Solar Cells

Improving interfacial electron transfer and light harvesting in dye-sensitized solar cells by using Ag nanowire/TiO2 nanoparticle composite films

RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 70172-70177 ◽  
Author(s):  
Po-Chun Huang ◽  
Tsan-Yao Chen ◽  
Yi-Lin Wang ◽  
Chiun-Yi Wu ◽  
Tsang-Lang Lin
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Surface Plasmon Resonance ◽  
Composite Films ◽  
Dye Sensitized Solar Cells ◽  
Interfacial Electron Transfer ◽  
Dye Sensitized ◽  
Ag Nanowires ◽  
Sensitized Solar Cells ◽  
Ag Nanowire

TiO2 coated Ag nanowires improved the interfacial electron transfer, the surface plasmon resonance, and the light-scattering in dye-sensitized solar cells.

Influence of linker molecules on interfacial electron transfer and photovoltaic performance of quantum dot sensitized solar cells

2014 ◽  
Vol 2 (48) ◽  
pp. 20882-20888 ◽  
Author(s):  
Junwei Yang ◽  
Takuya Oshima ◽  
Witoon Yindeesuk ◽  
Zhenxiao Pan ◽  
Xinhua Zhong ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Quantum Dot ◽  
Transfer Rate ◽  
Photovoltaic Performance ◽  
Interfacial Electron Transfer ◽  
Electron Transfer Rate ◽  
Linker Molecules ◽  
Sensitized Solar Cells

The influence of linker molecules on the electron transfer rate and photovoltaic performance of the resultant QDSCs has been investigated.

ALD Grown Aluminum Oxide Submonolayers in Dye-Sensitized Solar Cells: The Effect on Interfacial Electron Transfer and Performance

2011 ◽  
Vol 115 (33) ◽  
pp. 16720-16729 ◽  
Author(s):  
Liisa J. Antila ◽  
Mikko J. Heikkilä ◽  
Ville Mäkinen ◽  
Niko Humalamäki ◽  
Mikko Laitinen ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Aluminum Oxide ◽  
Dye Sensitized Solar Cells ◽  
Interfacial Electron Transfer ◽  
Dye Sensitized ◽  
And Performance ◽  
Sensitized Solar Cells

Ru(II)-phthalocyanine sensitized solar cells: the influence of co-adsorbents upon interfacial electron transfer kinetics

2009 ◽  
Vol 19 (28) ◽  
pp. 5016 ◽  
Author(s):  
Ana Morandeira ◽  
Ismael López-Duarte ◽  
Brian O'Regan ◽  
M. Victoria Martínez-Díaz ◽  
Amparo Forneli ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Interfacial Electron Transfer ◽  
Electron Transfer Kinetics ◽  
Sensitized Solar Cells

scholarly journals Theoretical Analysis on Heteroleptic Cu(I)-Based Complexes for Dye-Sensitized Solar Cells: Effect of Anchors on Electronic Structure, Spectrum, Excitation, and Intramolecular and Interfacial Electron Transfer

Molecules ◽  
2020 ◽  
Vol 25 (16) ◽  
pp. 3681
Author(s):  
Zhijie Xu ◽  
Xiaoqing Lu ◽  
Yuanyuan Li ◽  
Shuxian Wei
Keyword(s):  
Electron Transfer ◽  
Electronic Structure ◽  
Solar Cells ◽  
Molecular Orbital ◽  
Dye Sensitized Solar Cells ◽  
Orbital Energy ◽  
Interfacial Electron Transfer ◽  
Dye Sensitized ◽  
Cyanoacrylic Acid ◽  
Sensitized Solar Cells

Two groups of heteroleptic Cu(I)-based dyes were designed and theoretically investigated by density functional theory (DFT) and time-dependent DFT (TD-DFT) methods. Different anchors were integrated into the dye skeleton to shed light on how the type of anchor influenced the electronic structure, absorption spectrum, electron excitation, and intramolecular and interfacial electron transfer of dyes. The results indicated that, compared with other dyes, the dyes with cyanoacrylic acid and nitric acid exhibited more appropriate electron distributions in frontier molecular orbitals (FMOs), lower HOMO (the highest occupied molecular orbital) –LUMO (the lowest unoccupied molecular orbital) energy gaps, broader absorption spectral ranges as well as improved spectral characteristics in the near-infrared region and better intramolecular electron transfer (IET) characteristics with more electrons transferred to longer distances, but smaller orbital overlap. Among all the studied Cu(I)-based dyes, B1 and P1 (with cyanoacrylic acid anchoring group) exhibited the best interface electronic structure parameters with a relatively short electron injection time (τinj) and large dipole moment (μnormal), which would have a positive effect on the open-circuit photovoltage (Voc) and short-circuit current density (Jsc), resulting in high power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). Our findings are expected to provide a new insight into the designing and screening of high-performance dyes for DSSCs.

Role of hexyloxy groups in zinc phthalocyanines bearing sulfonic acid anchoring groups for dye-sensitized solar cells

2019 ◽  
Vol 23 (03) ◽  
pp. 279-286 ◽  
Author(s):  
Emre Güzel ◽  
İlkay Şişman ◽  
Ahmet Gül ◽  
Makbule B. Koçak
Keyword(s):  
Solar Cells ◽  
Sulfonic Acid ◽  
Dye Sensitized Solar Cells ◽  
Zinc Phthalocyanine ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Phthalocyanine Dyes ◽  
Dye Aggregation ◽  
Anchoring Groups ◽  
Sensitized Solar Cells

Zinc phthalocyanine dyes bearing four sulfonic acid anchoring groups with (A-ZnPc) and without (H-ZnPc) four chloro and eight hexyloxy groups were used as sensitizers for dye-sensitized solar cells (DSSCs). The dyes were investigated in terms of their optical, electrochemical and photovoltaic properties. The presence of these groups in dye A-ZnPc resulted in both red-shifted absorption and decreased dye aggregation, which are beneficial for the improvement of device performance. In the presence of chenodeoxycholic acid (CDCA) as a coadsorbent, the DSSC based on H-ZnPc shows a power conversion efficiency (PCE) of 0.96%, which is improved by [Formula: see text]40% as compared to the device without CDCA. However, the PCE of an A-ZnPc-based device with CDCA slightly enhances from 1.15% (without CDCA) to 1.22%, indicating that the bulky hexyloxy groups with large steric hindrance can effectively suppress aggregation of the adsorbed dye. The results showed that the zinc phthalocyanine dye bearing bulky hexyloxy groups is a promising candidate to construct efficient coadsorbent-free DSSCs.

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