Hydroxamate anchors for water-stable attachment to TiO2 nanoparticles

McNamara, William R.; Snoeberger, Robert C.; Li, Gonghu; Richter, Christiaan; Allen, Laura; Milot, Rebecca L.; Schmuttenmaer, Charles A.; Crabtree, Robert H.; Brudvig, Gary W.; Batista, Víctor S.

doi:10.1039/b910241h

Cited by 91 publications

(103 citation statements)

References 20 publications

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“…Due to the interfacial architectures of photosynthetic light-harvesting complex, it was found that it can sustain an open circuit voltage of +1.1 V. Chemical linker or anchor molecules are found effective for making stable biohybrid electrode. There are few studies dealing with the development of anchors (hydroxamate) for fi xing dye molecules on the surface of TiO 2 [ 57 ]. This synthesis method leads to the formation of water-stable dye-sensitized TiO 2 complex.…”

Section: Synthesis and Analytical Methods For Bioconjugated And Biohymentioning

confidence: 99%

Solar Photoelectrochemical Water Splitting with Bioconjugate and Bio-Hybrid Electrodes

Bora

Braun

Gajda‐Schrantz

2015

From Molecules to Materials

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Biohybrid electrodes of different types have been described in the current chapter. The biohybrid photoanodes and photocathodes are new class of materials for solar energy application by utilizing the mother nature's photosynthetic units and its biomimetic counterparts. The physical characteristics and the performance of the biohybrid electrodes have been described in terms of charge transfer, hydrogen evolution, and stability in harsh electrochemical environment.

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Section: Synthesis and Analytical Methods For Bioconjugated And Biohymentioning

confidence: 99%

Solar Photoelectrochemical Water Splitting with Bioconjugate and Bio-Hybrid Electrodes

Bora

Braun

Gajda‐Schrantz

2015

From Molecules to Materials

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“…Hydroxamic acids display a huge potential for use in DSC devices. Initially used in DSC devices by McNamara et al [54], hydroxamic acids have proved to be extremely stable in water. A study by Crabtree et al compared hydroxamic acid linkers directly with carboxylic and phosphonic acid [55].…”

Section: Dye Anchoring Groupsmentioning

confidence: 99%

A perspective on using experiment and theory to identify design principles in dye-sensitized solar cells

Holliman

Kershaw

Connell

et al. 2018

Science and Technology of Advanced Materials

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Dye-sensitized solar cells (DSCs) have been the subject of wide-ranging studies for many years because of their potential for large-scale manufacturing using roll-to-roll processing allied to their use of earth abundant raw materials. Two main challenges exist for DSC devices to achieve this goal; uplifting device efficiency from the 12 to 14% currently achieved for laboratory-scale ‘hero’ cells and replacement of the widely-used liquid electrolytes which can limit device lifetimes. To increase device efficiency requires optimized dye injection and regeneration, most likely from multiple dyes while replacement of liquid electrolytes requires solid charge transporters (most likely hole transport materials – HTMs). While theoretical and experimental work have both been widely applied to different aspects of DSC research, these approaches are most effective when working in tandem. In this context, this perspective paper considers the key parameters which influence electron transfer processes in DSC devices using one or more dye molecules and how modelling and experimental approaches can work together to optimize electron injection and dye regeneration.

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“…1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 scanning electron microscopy and helpful discussions, as well as Michael Power for advice and assistance on photolithography techniques. 21 …”

Section: Toc Graphicsmentioning

confidence: 99%

Functioning Photoelectrochemical Devices Studied with Time-Resolved Terahertz Spectroscopy

Nemes

Koenigsmann

Schmuttenmaer

2015

J. Phys. Chem. Lett.

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Terahertz (THz) spectroscopy has been used over the years to study carrier dynamics in a large variety of semiconductor materials utilized in devices such as photoelectrochemical cells. However, due to low transmission of far-infrared radiation through conductive films, thin layers of material deposited on nonconducting substrates have been investigated rather than inside actual devices. Here, we photolithographically etch fluorine-doped tin oxide (FTO) coatings to produce a pattern analogous to a wire-grid THz polarizer, and measure a nearly 260-fold increase in percent power transmitted at 1 THz through patterned electrodes (15 μm wire width and 20 μm wire period) relative to continuous FTO films. We have employed them as visible and THz-transparent electrodes in dye-sensitized solar cells, thereby enabling us to probe the carrier dynamics of a functioning device under an applied bias and with background illumination using timeresolved THz spectroscopy. We find that the electron injection efficiency and carrier trapping time both increase as the magnitude of the negative bias voltage is increased.

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Hydroxamate anchors for water-stable attachment to TiO2 nanoparticles

Cited by 91 publications

References 20 publications

Solar Photoelectrochemical Water Splitting with Bioconjugate and Bio-Hybrid Electrodes

Solar Photoelectrochemical Water Splitting with Bioconjugate and Bio-Hybrid Electrodes

A perspective on using experiment and theory to identify design principles in dye-sensitized solar cells

Functioning Photoelectrochemical Devices Studied with Time-Resolved Terahertz Spectroscopy

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