Korea Institute of Energy Research

Jae-ho Yun

Ara Cho

Jihye Gwak

Sejin Ahn

Young-joo Eo

Joo-hyung Park

Jun-sik Cho

Kyung-Hoon Yoon

Kee-Shik Shin

SeoungKyu Ahn

Jin-su Yoo

Se-jin Ahn

Seoung-Kyu Ahn

Ki-Hwan Kim

Sang-hyun Park

Kihwan Kim

Kyung Hoon Yoon

Kee Shik Shin

Jin-Su Yoo

Seung-kyu Ahn

Sung Woo Choi

Ki-Bong Song

Guk-Yeong Jeong

Hisun Park

Kyoo-Ho Kim

Jin-Hyeok Kim

Ji-Hye Gwak

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&#xb0; or greater so that upper and lower surfaces of the sample supported by the cradle unit are reversed.

Jig for sample for solar photovoltaic device and solar simulator including the same

Disclosed is a crucible that exhibits stable evaporation efficiency and durability with respect to Al, is used in an evaporation source of an electron-beam evaporator, and includes a storage unit, which includes a wall and a bottom and in which a deposition material is placed, and a wetting prevention unit that includes another wall, which is taller than the wall of the storage unit, and another bottom, and is combined with an exterior of the storage unit. The wetting prevention unit is provided so that only the wall of the storage unit is wet with Al, and accordingly, the lifespan of the crucible is lengthened. Further, contact with the ceramic material in order to prevent wetting is minimized, thereby preventing a reduction in the physical properties of the thin film due to the impurities mixed with the deposited Al.

Crucible for electron-beam evaporator

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.

Method of manufacturing cigs-based solar cell and cigs-based solar cell

Disclosed is a method of forming a chalcogen compound thin film suitable for use in a light-absorption layer of a solar cell. The method includes manufacturing a precursor liquid including an Sn precursor material and an S precursor material, applying the precursor liquid to form a precursor film, and heat-treating the precursor film. The Sn precursor material and the S precursor material are liquid materials. The present invention provides a method of forming a chalcogen compound thin film using a liquid precursor material without a sulfurization process, thereby forming a high-quality SnS thin film at low cost using a process which is suitable for mass production. Further, the light-absorption layer is formed using a process which is suitable for mass production, thus enabling the manufacture of a solar cell including the chalcogen compound thin film at low cost.

Method of forming chalcogen compound light-absorption layer thin film for solar cell

A method for manufacturing a CI(G)S-based thin film using a Cu&#x2014;Se two-component nanoparticle flux, and a CI(G)S-based thin film manufactured by the method are provided. The method for manufacturing the CI(G)S-based thin film, according to the present invention, comprises the steps of: manufacturing Cu&#x2014;Se two-component nanoparticles and In nanoparticles; manufacturing a slurry comprising the Cu&#x2014;Se two-component nanoparticles by mixing the Cu&#x2014;Se two-component nanoparticles, a solvent, and a binder, and manufacturing a slurry comprising the In nanoparticles by mixing the In nanoparticles, a solvent, and a binder; forming a thin film in which a plurality of layers are laminated by alternately coating the slurry comprising the Cu&#x2014;Se two-component nanoparticles and the slurry comprising the In nanoparticles on a substrate, regardless of order; and heat-processing the thin film which is formed.

Method for manufacturing CI(G)S-based thin film comprising Cu-Se thin film using Cu-Se two-component nanoparticle flux, and CI(G)S-based thin film manufactured by the method

A method of fabricating a CIGS thin film for solar cells using a simplified co-vacuum evaporation process and a CIGS thin film fabricated by the method are disclosed. The method includes: (a) depositing Cu, Ga and Se on a substrate having a substrate temperature ranging from 500&#xb0; C. to 600&#xb0; C. through co-vacuum evaporation, (b) depositing Cu, Ga, Se and In through co-vacuum evaporation while maintaining the same substrate temperature as in step (a), and (c) depositing Ga and Se through co-vacuum evaporation, followed by depositing Se alone through vacuum evaporation while lowering the temperature of the substrate. The method can realize crystal growth and band-gap grading by Ga composition distribution while simplifying process steps and significantly reducing a film-deposition time, as compared with a conventional co-vacuum evaporation process, thereby providing improvement in process efficiency.

Method of fabricating copper indium gallium selenide (CIGS) thin film for solar cell using simplified co-vacuum evaporation and copper indium gallium selenide (CIGS) thin film for solar cell fabricated by the same

A method of forming a nanometer-scale prominence and depression structure on a zinc oxide thin film in a wet-etching method, and the method includes the steps of: preparing a substrate; forming a nano structure having a height and a width of a nanometer range; forming the zinc oxide thin film on the substrate on which the nano structure is formed; and wet-etching the zinc oxide thin film, in which in the wet-etching step, zinc oxide having relatively low physical compactness is preferentially etched since the zinc oxide is positioned on the nano structure, and thus the prominence and depression structure is formed around the nano structure by the etching. The method is effective in that a thin film can be uniformly formed on the prominence and depression structure, and an electrolyte or an organic material may uniformly penetrate between the prominence and depression structure.

Method of forming zinc oxide prominence and depression structure and method of manufacturing solar cell using thereof

An apparatus and method for measurement of radiation intensity for testing reliability of a solar cell, and a method for testing the reliability of the solar cell. The apparatus includes a first solar cell receiving a predetermined intensity of radiation or more to generate electricity, a second solar cell receiving a predetermined intensity of radiation or more to generate electricity; a temperature sensor sensing a temperature of the second solar cell; a cooler cooling the first solar cell; and a controller measuring the intensity of radiation applied to the first solar cell, and controlling the cooler to prevent the temperature of the first solar cell from increasing above a predetermined temperature depending on the temperature of the second solar cell sensed by the temperature sensor.

Apparatus and method for measurement of radiation intensity for testing reliability of solar cell, and method for testing reliability of solar cell

A Cu&#x2014;In&#x2014;Zn&#x2014;Sn&#x2014;(Se,S)-based thin film for a solar cell and a preparation method thereof, and more particularly, to a Cu&#x2014;In&#x2014;Zn&#x2014;Sn&#x2014;(Se,S)-based thin film for a solar cell which can reduce an amount of In to be used and exhibit an excellent conversion efficiency and a preparation method thereof.

Cu&#x2014;In&#x2014;Zn&#x2014;Sn-(Se,S)-based thin film for solar cell and preparation method thereof

Disclosed are a high density CIS thin film and a method of manufacturing the same, which includes coating CIS nanopowders, CIGS nanopowders or CZTS nanopowders on a substrate by non-vacuum coating, followed by heat treatment with cavities between the nanopowders filled with filling elements such as copper, indium, gallium, zinc, tin, and the like. The high density CIS thin film is applied to a photo-absorption layer of a thin film solar cell, thereby providing a highly efficient thin film solar cell.

Growing community of inventors

Daejeon, South Korea

Jae-ho Yun