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

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.

Interfacial Electron-Transfer Kinetics in Metal-Free Organic Dye-Sensitized Solar Cells: Combined Effects of Molecular Structure of Dyes and Electrolytes

2008 ◽  
Vol 130 (52) ◽  
pp. 17874-17881 ◽  
Author(s):  
Masanori Miyashita ◽  
Kenji Sunahara ◽  
Tomohiro Nishikawa ◽  
Yu Uemura ◽  
Nagatoshi Koumura ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Electron Transfer ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Combined Effects ◽  
Interfacial Electron Transfer ◽  
Metal Free ◽  
Dye Sensitized ◽  
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.

Polyoxometalate supported complexes as effective electron-transfer mediators in dye-sensitized solar cells

2014 ◽  
Vol 43 (4) ◽  
pp. 1493-1497 ◽  
Author(s):  
Chun-Chen Yuan ◽  
Shi-Ming Wang ◽  
Wei-Lin Chen ◽  
Lin Liu ◽  
Chao Qin ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Effective Electron ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals A polymer gel electrolyte composed of a poly(ethylene oxide) copolymer and the influence of its composition on the dynamics and performance of dye-sensitized solar cells

2010 ◽  
Vol 195 (4) ◽  
pp. 1246-1255 ◽  
Author(s):  
João E. Benedetti ◽  
Agnaldo D. Gonçalves ◽  
André L.B. Formiga ◽  
Marco-A. De Paoli ◽  
X. Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ethylene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Polymer Gel ◽  
Polymer Gel Electrolyte ◽  
Dye Sensitized ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
And Performance ◽  
Sensitized Solar Cells

Electron transfer kinetics in water splitting dye-sensitized solar cells based on core–shell oxide electrodes

2012 ◽  
Vol 155 ◽  
pp. 165-176 ◽  
Author(s):  
Seung-Hyun Anna Lee ◽  
Yixin Zhao ◽  
Emil A. Hernandez-Pagan ◽  
Landy Blasdel ◽  
W. Justin Youngblood ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Water Splitting ◽  
Dye Sensitized Solar Cells ◽  
Core Shell ◽  
Electron Transfer Kinetics ◽  
Dye Sensitized ◽  
Oxide Electrodes ◽  
Sensitized Solar Cells

A polymer and graphene layer to increase dye regeneration and suppress back electron transfer in dye sensitized solar cells

2017 ◽  
Vol 53 (49) ◽  
pp. 6629-6632 ◽  
Author(s):  
Vediappan Sudhakar ◽  
Arulraj Arulkashmir ◽  
Kothandam Krishnamoorthy
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Graphene Layer ◽  
Dye Sensitized Solar Cells ◽  
Blocking Layer ◽  
Dye Sensitized ◽  
Back Electron Transfer ◽  
Dye Regeneration ◽  
Sensitized Solar Cells

A polymer–graphene blocking layer decreases back electron transfer and increases dye regeneration that improved the DSSC efficiency to 10.4%.

scholarly journals New Oxindole-Bridged Acceptors for Organic Sensitizers: Substitution and Performance Studies in Dye-Sensitized Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2159
Author(s):  
Yogesh S. Tingare ◽  
Chaochin Su ◽  
Ming-Tai Shen ◽  
Sheng-Han Tsai ◽  
Shih-Yu Ho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Performance Studies ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Surface ◽  
Carbonyl Groups ◽  
Dye Sensitized ◽  
Amide Carbonyl ◽  
And Performance ◽  
Sensitized Solar Cells ◽  
Organic Sensitizers

New D-π-A configured organic sensitizers featuring halogen-substituted oxindole-bridged acceptor units have been synthesized for dye-sensitized solar cells applications. Among fluorine, bromine, and iodine substitution, the cell based on bromine incorporated dye exhibited the highest efficiency. The oxindoles in these sensitizers were found to assist the electron injection through the chelation of their amide carbonyl groups to the TiO2 surface. This study provides an alternate approach for future rational dye design to gain excellent DSSC performance.

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