IMPROVEMENT OF SOLAR ENERGY CONVERSION THROUGH ELECTRONIC EXCITATION PROCESSES IN TWO STAGES. ELECTRICAL APPROACH. (Q3143315): Difference between revisions
Jump to navigation
Jump to search
(Created claim: summary (P836): THE PROJECT PROPOSES TO APPLY TO PHOTOVOLTAIC AND PHOTOCATALITICOS SYSTEMS A NOVEL SCHEME OF USE OF SOLAR ENERGY THAT TAKES ADVANTAGE OF A WIDER RANGE OF THE SOLAR SPECTRUM THAN IN THE USUAL SYSTEMS BY COMBINING TWO ELECTRONIC EXCITATIONS PRODUCED BY RELATIVELY LOW ENERGY PHOTONS TO PRODUCE THE EXCITATION OF AN ELECTRON TO AN ENERGY GREATER THAN THAT OF EACH OF THE ABSORBED PHOTONS. This process is similar to the one that opens in the NATURAL PH...) |
(Changed label, description and/or aliases in en: translated_label) |
||
| label / en | label / en | ||
IMPROVEMENT OF SOLAR ENERGY CONVERSION THROUGH ELECTRONIC EXCITATION PROCESSES IN TWO STAGES. ELECTRICAL APPROACH. | |||
Revision as of 13:18, 12 October 2021
Project Q3143315 in Spain
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | IMPROVEMENT OF SOLAR ENERGY CONVERSION THROUGH ELECTRONIC EXCITATION PROCESSES IN TWO STAGES. ELECTRICAL APPROACH. |
Project Q3143315 in Spain |
Statements
66,550.0 Euro
0 references
133,100.0 Euro
0 references
50.0 percent
0 references
1 January 2014
0 references
31 December 2016
0 references
UNIVERSIDAD POLITECNICA DE VALENCIA
0 references
39°28'10.96"N, 0°22'34.82"W
0 references
46250
0 references
EL PROYECTO PLANTEA APLICAR A SISTEMAS FOTOVOLTAICOS Y FOTOCATALITICOS UN ESQUEMA NOVEDOSO DE UTILIZACION DE ENERGIA SOLAR QUE APROVECHA UN INTERVALO DEL ESPECTRO SOLAR MAS AMPLIO QUE EN LOS SISTEMAS HABITUALES AL COMBINAR DOS EXCITACIONES ELECTRONICAS PRODUCIDAS POR FOTONES DE RELATIVAMENTE BAJA ENERGIA PARA PRODUCIR LA EXCITACION DE UN ELECTRON A UNA ENERGIA MAYOR QUE LA DE CADA UNO DE LOS FOTONES ABSORBIDOS. ESTE PROCESO ES SIMILAR AL QUE OPERA EN LA FOTOSINTESIS NATURAL (EL ESQUEMA Z), PERO AÑADE LA POSIBILIDAD DE OBTENER LA MISMA EXCITACION TAMBIEN CON UN SOLO FOTON DE ENERGIA SUFICIENTE, AUMENTANDO ASI LA EFICIENCIA GLOBAL Y LOGRANDO UN MAYOR POTENCIAL ELECTRICO O QUIMICO CON UN NUMERO DE ELECTRONES EXCITADOS SUPERIOR AL QUE PODRIA OBTENERSE CON UN SEMICONDUCTOR TRADICIONAL._x000D_ PARA ELLO EL PROYECTO USARA VARIOS MATERIALES DE TIPO SULFURO (SNS2, IN2S3 O CUGAS2 CON SUSTITUCION DE SUS CATIONES POR ELEMENTOS DE TRANSICION) QUE PUEDEN LLEVAR A CABO ESTE PROCESO TAL COMO HA SIDO PROPUESTO, A PARTIR DE CALCULOS DFT, POR ALGUNOS DE LOS GRUPOS PARTICIPANTES EN EL PROYECTO Y CONFIRMANDOLO EXPERIMENTALMENTE PARA ALGUNOS DE ESTOS MATERIALES CON ESPECTROSCOPIAS OPTICAS Y UN TEST FOTOCATALITICO. SE COMPROBARA AHORA LA EFICACIA DE ESOS MATERIALES TANTO EN UNA CELULA FOTOVOLTAICA DE LAMINA DELGADA Y EN LA GENERACION FOTOCATALITICA EFICIENTE DE HIDROGENO A PARTIR DE BIOMASA O RESIDUOS ORGANICOS. _x000D_ EL PROYECTO PRETENDE IRA MAS ALLA EN LA APLICACION DEL ESQUEMA Z BUSCANDO OTROS MATERIALES VALIDOS PARA EL MISMO. ASI, SE ESTUDIARAN OXIDOS SEMICONDUCTORES DE TI O/Y ZN, EN LOS QUE PARTE DE LOS ANIONES OXIGENO SE SUSTITUYEN POR IONES NITRURO (PARA OBTENER UN BANDGAP PROXIMO A 2.0 EV, OPTIMO PARA ESTAS APLICACIONES), CONOCIDOS POR SUS PROPIEDADES FOTOCATALITICAS CON LUZ VISIBLE; A ELLOS SE INCORPORARIAN METALES DE TRANSICION QUE PUEDAN DAR, SEGUN LOS CALCULOS DFT, LA ESTRUCTURA ELECTRONICA ESPECIAL QUE HACE POSIBLE EL CITADO PROCESO DE DOS FOTONES. _x000D_ EN EL PROYECTO GLOBAL TALES MATERIALES SE REALIZARAN EN FORMA DE POLVO Y COMO PELICULA DELGADA. ESTE SUBPROYECTO ABORDARA LA SINTESIS DE LOS MATERIALES EN PELICULA DELGADA MEDIANTE METODOS ELECTROQUIMICOS Y SE ESTUDIARAN SUS CARACTERISTICAS ESTRUCTURALES Y ESPECTRALES. FINALMENTE SE COMPROBARA SU CAPACIDAD PARA FORMAR CELULAS FOTOVOLTAICAS Y LLEVAR A CABO LA FOTOGENERACION DE HIDROGENO, VERIFICANDO EN AMBOS CASOS SI SE ALCANZAN EN ESOS PROCESOS EFICIENCIAS SUPERIORES A LAS QUE SE CONSEGUIRIAN CON MATERIALES ANALOGOS PERO INCAPACES DE LLEVAR A CABO EL ACOPLAMIENTO DE LA ABSORCION DE DOS FOTONES ARRIBA CITADO. _x000D_ EL PROYECTO GLOBAL SE HA CONSTRUIDO BAJO UN ENFOQUE MULTIDISCIPLINAR CON BASE EN FISICA, QUIMICA Y CIENCIA DE MATERIALES, Y TIENE COMO OBJETIVOS FUNDAMENTALES EL DESARROLLO DE SISTEMAS FOTOVOLTAICOS Y FOTOCATALITICOS MEDIANTE LA PREPARACION MATERIALES COMPLEJOS Y LA CARACTERIZACION DE LAS PROPIEDADES DE ESTOS, TANTO CON CALCULOS CUANTICOS AVANZADOS COMO CON ESPECTROSCOPIAS ESPECIALIZADAS. CON ESTE PROYECTO SE ESPERA NO SOLO DESCUBRIR NUEVOS MATERIALES QUE TENGAN LAS PROPIEDADES ELECTRONICAS DESEADAS, SINO TAMBIEN AVANZAR EN LA COMPRENSION DE LAS PECULIARIDADES FISICAS Y QUIMICAS ASOCIADAS A ESAS PROPIEDADES. POR OTRO LADO, EL PROYECTO TAMBIEN PROYECTA TRASLADAR SUS RESULTADOS A SOLUCIONES DE BASE TECNOLOGICA DE INTERES PARA LA SOCIEDAD, APROVECHANDO LAS RELACIONES YA ESTABLECIDAS POR LOS GRUPOS PROPONENTES CON EMPRESAS INTERESADAS EN ELLO. (Spanish)
0 references
THE PROJECT PROPOSES TO APPLY TO PHOTOVOLTAIC AND PHOTOCATALITICOS SYSTEMS A NOVEL SCHEME OF USE OF SOLAR ENERGY THAT TAKES ADVANTAGE OF A WIDER RANGE OF THE SOLAR SPECTRUM THAN IN THE USUAL SYSTEMS BY COMBINING TWO ELECTRONIC EXCITATIONS PRODUCED BY RELATIVELY LOW ENERGY PHOTONS TO PRODUCE THE EXCITATION OF AN ELECTRON TO AN ENERGY GREATER THAN THAT OF EACH OF THE ABSORBED PHOTONS. This process is similar to the one that opens in the NATURAL PHOTOSINTESIS (Schema Z), BUT YEAR THE POSSIBILITY OF OBJECTING THE SAME excitation ALSO WITH A SUFICIENT ENERGY PHOTOGRAPHY ONLY, Increasing GLOBAL EFICIENCE AND GLOBAL EFICIENCE WITH A MORE POTENTIAL ELECTRIC OR CHIMICAL WITH A NUMBER OF ELECTRONES excited SUPERIOR TO THIS PRODUCT WITH A TRADITIONAL SEMICONDUCTOR._x000D_ FOR THE PROJECT will use several MATERIAL TYPE SULFURYS (SNS2, IN2S3 or CUGAS2 with SUSTITUCTION OF THEIR CATIONS FOR TRANSITATION ELEMENTS) that can lead to this process as it has been proposed, to PART OF DFT QALKLES, BY SOMES OF THE PARTICIPANT GROUPS IN THE PROJECT AND reconfirming it experimentally for all of these MATERIALS with OPTIC spectroscopy and a PHOTOCATALITIC TEST. WE WILL NOW CHECK THE EFFECTIVENESS OF THESE MATERIALS BOTH IN A THIN LAMINA PHOTOVOLTAIC CELL AND IN THE EFFICIENT PHOTOCATALITICA GENERATION OF HYDROGEN FROM BIOMASS OR ORGANIC RESIDUES. _x000D_ the PROJECT PRETAINING WORKING MORE IN THE APPLICATION OF THE SQUEM Z SQUEMA Z VALID OTHER MATERIALS FOR THE SAME. THUS, SEMICONDUCTOR OXIDES FROM YOU OR/AND ZN WERE STUDIED, IN WHICH PART OF THE OXYGEN ANIONS ARE REPLACED BY NITRIDE IONS (TO OBTAIN A BANDGAP NEXT TO 2.0 EV, OPTIMAL FOR THESE APPLICATIONS), KNOWN FOR THEIR PHOTOCATALITIC PROPERTIES WITH VISIBLE LIGHT; THEY WILL INCORPORATE TRANSITION METALS THAT CAN GIVE, ACCORDING TO THE DFT CALCULATIONS, THE SPECIAL ELECTRONIC STRUCTURE THAT MAKES POSSIBLE THE AFOREMENTIONED PROCESS OF TWO PHOTONS. _x000D_ in THE GLOBAL PROJECT MATERIAL TALMS will be carried out in policy FORM and as a Delgated PELICULA. THIS SUBPROJECT WILL ADDRESS THE SYNTHESIS OF MATERIALS IN THIN FILM USING ELECTROQUIMIC METHODS AND STUDY THEIR STRUCTURAL AND SPECTRAL CHARACTERISTICS. FINALLY, IT WILL BE CHECKED ITS ABILITY TO FORM PHOTOVOLTAIC CELLS AND CARRY OUT HYDROGEN PHOTOGENERATION, VERIFYING IN BOTH CASES WHETHER IN THESE PROCESSES HIGHER EFFICIENCIES THAN WOULD BE ACHIEVED WITH MATERIALS ANALOGS BUT UNABLE TO CARRY OUT THE COUPLING OF THE ABSORPTION OF TWO PHOTONS MENTIONED ABOVE. _x000D_ the GLOBAL PROJECT has been constructed under a multi-dimensional focus on physical, chimic and science of MATERIALS, and had as a fundamental object the development of photovoltaic and photo-catalytic systems by means of complicit MATERIAL PREPARATION and the CHARACTERISATION OF THE PROPERTY OF THESE, with Quantum QALKLES ADVANCED AS WITH SPECIALISED spectroscopy. WITH THIS PROJECT IT IS HOPED NOT ONLY TO DISCOVER NEW MATERIALS THAT HAVE THE DESIRED ELECTRONIC PROPERTIES, BUT ALSO TO ADVANCE THE UNDERSTANDING OF THE PHYSICAL AND CHEMICAL PECULIARITIES ASSOCIATED WITH THESE PROPERTIES. ON THE OTHER HAND, THE PROJECT ALSO PLANS TO TRANSFER ITS RESULTS TO SOLUTIONS OF TECHNOLOGICAL BASIS OF INTEREST FOR SOCIETY, TAKING ADVANTAGE OF THE RELATIONSHIPS ALREADY ESTABLISHED BY THE PROPOSING GROUPS WITH COMPANIES INTERESTED IN IT. (English)
12 October 2021
0 references
Valencia
0 references
Identifiers
ENE2013-46624-C4-4-R
0 references