Abstract: The present invention relates to an encapsulant capable of reducing potential-induced degradation (PID). The encapsulant is used to seal a solar cell to form a photovoltaic module, in which silica gel is dispersed in the encapsulant as a sodium ion adsorbent. Since the silica gel that is highly transparent is used as the sodium ion adsorbent, it is possible to prevent PID attributable to sodium ions and to prevent deterioration in photovoltaic efficiency of the photovoltaic module. Since the silica gel has a high specific surface area, it is possible to adsorb sodium ions with a small amount of the silica gel.

Abstract: A jig for a sample for a solar photovoltaic device is disclosed. The jig includes a cradle unit supporting the sample and a contact unit including at least one probe pin coming into contact with a busbar of the sample located in the cradle unit. The contact unit includes a coupling plate coupled with the cradle unit and at least one contact bar including a PCB and connected to the coupling plate, the contact bar having at least one probe pin aligned with the busbar of the sample with interposition of a probe pin connecting block. the jig includes a rotation support unit coupled with the cradle unit by a rotation shaft to allow the cradle unit to be rotated at an angle of 180° or greater so that upper and lower surfaces of the sample supported by the cradle unit are reversed.

Abstract: A method of manufacturing a CIGS-based solar cell including a transparent rear electrode, the method comprising forming a rear electrode layer including a transparent oxide material; forming rear electrode patterns including a metal material on the rear electrode layer; forming a CIGS-based light absorption layer on the rear electrode layer on which the rear electrode patterns are formed; forming a buffer layer on the light absorption layer; and forming a front electrode including a transparent material on the buffer layer, wherein the rear electrode patterns are provided with a transmissive portion, through which light is transmitted, formed between patterns of the metal material.

Abstract: A method of manufacturing a CIGS-based solar cell including a transparent rear electrode, the method comprising forming a rear electrode layer including a transparent oxide material; forming rear electrode patterns including a metal material on the rear electrode layer; forming a CIGS-based light absorption layer on the rear electrode layer on which the rear electrode patterns are formed; forming a buffer layer on the light absorption layer; and forming a front electrode including a transparent material on the buffer layer, wherein the rear electrode patterns are provided with a transmissive portion, through which light is transmitted, formed between patterns of the metal material.

Abstract: Disclosed is a photovoltaic package having a simple structure configured to enable mid-term or short-term use thereof, the photovoltaic package including a photovoltaic cell for producing electrical energy through photoelectric conversion, a front sealing sheet disposed on the front side of the photovoltaic cell, and a back sealing sheet disposed on the back side of the photovoltaic cell, wherein at least one of the front sealing sheet and the back sealing sheet contains therein moisture-absorbent particles, and the front sealing sheet and the back sealing sheet are adhered to each other so that the photovoltaic cell is sealed.

Abstract: A jig for a sample for a solar photovoltaic device is disclosed. The jig includes a cradle unit supporting the sample and a contact unit including at least one probe pin coming into contact with a busbar of the sample located in the cradle unit. The contact unit includes a coupling plate coupled with the cradle unit and at least one contact bar including a PCB and connected to the coupling plate, the contact bar having at least one probe pin aligned with the busbar of the sample with interposition of a probe pin connecting block. the jig includes a rotation support unit coupled with the cradle unit by a rotation shaft to allow the cradle unit to be rotated at an angle of 180° or greater so that upper and lower surfaces of the sample supported by the cradle unit are reversed.

Abstract: The invention relates to a semitransparent back electrode, a solar cell using the same, and a method for manufacturing them and, more specifically, to a technique for solving a performance decrease problem caused by increase of resistance of a conventional semitransparent solar cell. A method for manufacturing a semitransparent back electrode of a solar cell according to the invention includes depositing a transparent back electrode on a substrate, and forming a semitransparent molybdenum electrode layer on the back electrode. Accordingly, a BSF effect can be expected by applying a molybdenum layer locally or restrictively as a thin film, and the transparency is secured.