摘要:
Photovoltaic devices 10 are provided that include a transparent superstrate 12; a transparent conductive oxide 14 on the transparent superstrate; an n-type window layer 18 on the transparent superstrate; a p-type absorber layer 20 on the n-type window layer; and an inert conductive paste layer 23 on the back surface of the p-type absorber layer. The p-type absorber layer 20 includes cadmium telluride, and defines a back surface positioned opposite from the n-type window layer 18 that is tellurium enriched. The inert conductive paste layer 23 is substantially free from an acid or acid generator. Methods are also generally provided of forming such a back contact.
摘要:
A method of forming optoelectronic conversion layer (30) includes the following steps. A first substrate (20) is provided, and an electrode layer (22) is formed on the first substrate (20). A first metal precursor layer (24) including one or a plurality of metal components is formed on the electrode layer (22). A second substrate (26) is provided, and a nonmetal precursor layer (28) including at least one nonmetal component is formed on the second substrate (26). The first substrate (20) and the second substrate (26) are then stacked so that the nonmetal precursor layer (28) and the first metal precursor layer (24) are in contact. A thermal treatment (29) is performed to have the first metal precursor layer (24) react with the nonmetal precursor layer (28) for forming an optoelectronic conversion layer (30).
摘要:
Ce procédé vise l'élimination du substrat de croissance d'un circuit de détection de rayonnement électromagnétique, notamment dans le domaine de l'infrarouge ou du visible, ledit circuit de détection comportant une couche de détection dudit rayonnement réalisé en Hg (1 - x) Cd x Te obtenue par épitaxie en phase liquide ou gazeuse ou par épitaxie par jet moléculaire, ledit circuit de détection étant hybridé sur un circuit de lecture. Ce procédé consiste : • à soumettre le substrat de croissance à une étape de polissage mécanique ou mécano chimique ou à une étape d'attaque chimique afin de réduire son épaisseur, jusqu'à aboutir à une zone d'interface entre le matériau du circuit de détection et le substrat de croissance ; • puis à soumettre l'interface ainsi obtenu à un traitement iodé.
摘要:
A photovoltaic device (10) is provided. The photovoltaic device (10) comprises an absorber layer (20) comprising a chalcogenide material. The photovoltaic device (10) further comprises a back contact (40) and a reflection enhancing layer (30) disposed between the absorber layer (20) and the back contact (40).
摘要:
A method for forming a chalcogenide semiconductor film (1220) and a photovoltaic device using the chalcogenide semiconductor film (1220) are disclosed. The method includes steps of coating a precursor solution to form a layer on a substrate and annealing the layer to form the chalcogenide semiconductor film (1220). The precursor solution includes a solvent (220, 420), metal chalcogenide nanoparticles (210, 310, 410) and at least one of metal ions (240, 340, 450) and metal complex ions (240, 330, 440) which are distributed on surfaces of the metal chalcogenide nanoparticles (210, 310, 410). The metals of the metal chalcogenide nanoparticles (210, 310, 410), the metal ions (240, 340, 450) and the metal complex ions (240, 330, 440) are selected from a group consisting of group I, group II, group III and group IV elements of the periodic table and include all metal elements of a chalcogenide semiconductor material.
摘要:
A thin film photovoltaic cell (10) comprises an n-type semiconductor window layer (40), a p-type semiconductor absorption layer (5) and a pn-junction (6) at the interface between these two layers, wherein the p-type semiconductor absorption layer is formed of cadmium telluride CdTe. According to the present invention, the n-type semiconductor window layer (40) comprises zinc oxide/sulfide Zn (O,S).
摘要:
Cellule photovoltaïque (100) comprenant au moins un substrat transparent verrier (10), protégeant un empilement de couches (30) comprenant au moins: - un film (5) incorporant au moins un matériau à base de Cadmium et à propriétés photovoltaïques, - deux couches (3, 6) formant électrodes de part et d'autre de ladite couche photovoltaïque (5), l'une inférieure (3) disposée la plus proche du substrat et l'autre supérieure (6),
au moins ladite couche électrode inférieure (3) étant un oxyde transparent conducteur du type TCO, ladite cellule se caractérisant en qu'elle comprend, entre ladite couche électrode inférieure (3) et ledit film photovoltaïque (5), au moins une couche (4) constituée essentiellement d'un nitrure de gallium GaN, éventuellement partiellement substituée par de l'aluminium Al, ladite couche étant d'épaisseur physique strictement inférieure à 20 nm.
摘要:
Methods are generally provided for forming a cadmium sulfide layer 18 on a substrate 12. In one particular embodiment, the method can include sputtering a cadmium sulfide layer 18 on a substrate 12 in a sputtering atmosphere comprising an inorganic fluorine source gas. Methods are also generally provided for manufacturing a cadmium telluride based thin film photovoltaic device 10. Cadmium telluride based thin film photovoltaic devices 10 are also generally provided. The device can include a substrate 12; a transparent conductive oxide layer 14 on the substrate 12; a cadmium sulfide layer 18 on the transparent conductive oxide layer 14; and, a cadmium telluride layer 20 on the cadmium sulfide layer 18. The cadmium sulfide layer 18 includes fluorine.
摘要:
Cadmium telluride thin film photovoltaic devices 10 are generally disclosed including a graded alloy telluride layer 22. The device can include a cadmium sulfide layer 18, a graded alloy telluride layer 22 on the cadmium sulfide layer 18, and a back contact 24 on the graded alloy telluride layer 22. The graded alloy telluride layer 22 generally has an increasing alloy concentration and decreasing cadmium concentration extending in a direction from the cadmium sulfide layer 18 towards the back contact layer 24. The device 10 may also include a cadmium telluride layer 20 between the cadmium sulfide layer 18 and the graded alloy telluride layer 22. Methods are also generally disclosed for manufacturing a cadmium telluride based thin film photovoltaic device having a graded cadmium telluride structure.