12Diffusional Transport in Functional Materials: Zeolite, MOF, and Perovskite Gas Separation Membranes, Proton Exchange Membrane Fuel Cells, Dye-Sensitized Solar Cells

2016 ◽  
pp. 437-462 ◽  
2012 ◽  
Vol 74 ◽  
pp. 83-86 ◽  
Author(s):  
Sangwook Lee ◽  
Gill Sang Han ◽  
Ji-Hae Lee ◽  
Jung-Kun Lee ◽  
Hyun Suk Jung

2015 ◽  
Vol 19 (01-03) ◽  
pp. 517-526 ◽  
Author(s):  
Shin-ichi Sasaki ◽  
Xiao-Feng Wang ◽  
Toshitaka Ikeuchi ◽  
Hitoshi Tamiaki

A series of chlorophyll derivatives possessing a carboxy group were synthesized aiming at their application as sensing materials and to dye-sensitized solar cells (DSSCs). Their absorption and fluorescence responses to amine concentrations in THF and photovoltaic performance of DSSCs on TiO 2 films were investigated.


2021 ◽  
Vol 9 ◽  
Author(s):  
Sarawut Tontapha ◽  
Pikaned Uppachai ◽  
Vittaya Amornkitbamrung

Dye-sensitized solar cells (DSSCs) have been developed as a promising photovoltaic cell type in recent decades because of their low cost, environmental friendliness, ease of fabrication, and suitability for a wide range of indoor and outdoor applications, especially under diverse shaded and low-light condition. They are typically composed of three main components: a transparent conducting oxide (TCO) substrate-based working electrode with wide-bandgap semiconductors and dye sensitizer molecules, an electrolytic mediator based on redox couple species, and a TCO-based counter electrode consisting of catalyst materials. The development of intrinsic and functional organic, inorganic, metal oxide, composite, and carbon-based materials has been intensively studied to enhance the efficiency of DSSCs. A simple and low-cost fabrication process that uses natural products is also considered essential for further large-scale production. In this article, we review the fabrication of various functional materials and their effects on DSSC performance.


Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 693
Author(s):  
Paolo Dognini ◽  
Christopher R. Coxon ◽  
Wendel A. Alves ◽  
Francesca Giuntini

The covalent and noncovalent association of self-assembling peptides and tetrapyrroles was explored as a way to generate systems that mimic Nature’s functional supramolecular structures. Different types of peptides spontaneously assemble with porphyrins, phthalocyanines, or corroles to give long-range ordered architectures, whose structure is determined by the features of both components. The regular morphology and ordered molecular arrangement of these systems enhance the photochemical properties of embedded chromophores, allowing applications as photo-catalysts, antennas for dye-sensitized solar cells, biosensors, and agents for light-triggered therapies. Chemical modifications of peptide and tetrapyrrole structures and control over the assembly process can steer the organization and influence the properties of the resulting system. Here we provide a review of the field, focusing on the assemblies obtained from different classes of self-assembling peptides with tetrapyrroles, their morphologies and their applications as innovative functional materials.


2014 ◽  
Vol 07 (03) ◽  
pp. 1450030 ◽  
Author(s):  
N. B. Gusiak ◽  
I. M. Kobasa ◽  
S. S. Kurek

Three polymethine dyes of various structures were checked for their potential to be used as sensitising dyes for TiO 2. Based on the absorption spectral data and cyclic voltammetric redox potential, the lower unoccupied molecular orbital (LUMO) energy was calculated. It was higher than the conductance band edge energy of anatase TiO 2 for all the studied dyes, meaning that they all may act as efficient sensitizers for various functional materials to be used in the broad spectrum visible-light solar cells, energy conversion systems and other similar applications.


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