摘要:
An organic dye for a Dye Sensitized Solar Cell (DSSC) which comprises at least one electron acceptor unit and at least one ττ-conjugated unit. Said organic dye is particularly useful in a dye sensitized photoelectric conversion element which, in turn, may be used in a dye sensitized solar cell (DSSC).
摘要:
The present invention relates to a solar cell and a method for manufacturing thereof. The solar cell comprises a porous insulating substrate (2), a first porous conducting layer (4) and a second porous conducting layer (6) disposed on opposite sides of the porous insulating substrate, a light absorbing layer (8) in electrical contact with the first conducting layer, and an electrolyte integrally positioned through the porous conductive layers, the porous insulating substrate and the light absorbing layer to transfer charge carriers between the second conducting layer and the light absorbing layer. The light absorbing layer (8) comprises a plurality of grains (10) of a doped semiconducting material.
摘要:
Upon light irradiation, a dye sensitized photoactive surfaces can undergo hydrophobic to hydrophilic conversion in both in air and oil environments.
摘要:
Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The active layer may include a titanate. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.
摘要:
In accordance with embodiments of the present disclosure, a catalyst layer for electrolyte based tri-iodide/iodine redox couples of a dye- sensitized solar cell (DSSC) includes carbon nanotubes and cement, such as a conventional type of cement suitable for use as an infrastructure construction or building material. Representative example catalyst layers were prepared by mixing carbon nanotube powders with cement powder as a binder, and such catalyst layers were coated on a transparent conducting oxide (TCO) glass substrate using a painting technique without heating. By mixing carbon nanotubes and cement at different carbon nanotube to cement weight percentage ratios, i.e., 17:83, 29:71, 38:62, 44:56 and 50:50, to establish an appropriate cement fraction, catalyst layers with low electrical resistivity, high electro-catalytic activity, and excellent photoelectric conversion efficiency have been fabricated, where the photoelectric conversion efficiency has been measured as 85.56% of that of a DSSC having a conventional platinum catalyst based counter electrode.
摘要翻译:本发明涉及使用配备有基板的电极和形成在基板上的一个或多个氧化物层的染料敏化太阳能电池。 氧化物层含有两种以上的染料。 具体地说,通过以重叠方式并入以下来调节氧化物层的颜色:发电用染料,其中能够最大吸收光的区域在270nm以上且小于550nm的波长范围内,以及 其最大摩尔衰减系数为16,000以上; 和用于调节颜色的染料,其中能够获得最大光吸收的区域在550-800nm的波长范围内。 L * a * b *颜色空间中的氧化物层满足以下等式:L * = 3-20,包括端值; a * = 0或更小; b * = 0以下。 本发明是考虑到设计特性的同时具有有用的发电效率的染料敏化太阳能电池。
摘要:
Electrochemical and photoelectrochemical cells for the oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran are provided. Also provided are methods of using the cells to carry out the electrochemical and photoelectrochemical oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran.
摘要:
Various examples are provided for carbazole-based GUMBOS (group of uniform materials based on organic salts), and its application in organic light emitting diodes (OLEDs). In one example, a composition includes a solid phase carbazole-based GUMBOS (group of uniform materials based on organic salts) comprising a counterion such as, e.g., trifluoromethanesulfonate ([OTf]), bis-(trifluoromethanesulfonyl)imide ([NTf 2 ]), bis-(pentafluoroethylsulfonyl)imide ([BETI]), tetrafluoroborate (BF4), hexafluorophosphate (PF6), and/or thiocyanate (SCN). The carbazole-based GUMBOS can include carbazoleimidazole-based GUMBOS or 3,6-diBDC carbazolium-based GUMBOS. In another example, a method includes preparing a biphasic solution; separating a layer of DCM from the biphasic solution after stirring; washing the DCM with water to remove byproducts; and evaporating the DCM to form a solid phase carbazoleimidazole-based GUMBOS. Preparing the biphasic solution can include carbazoleimidazolium iodide (CM) dissolved in dichloromethane (DCM) and a dissolved salt including a sodium salt or a lithium salt.