Korea Institute of Energy Research

Seoung-Kyu Ahn

Ara Cho

Jae-ho Yun

Ki-Hwan Kim

Jihye Gwak

Sejin Ahn

Young-joo Eo

Joo-hyung Park

Jun-sik Cho

Jin-su Yoo

Kyung Hoon Yoon

Kee Shik Shin

Ki-Bong Song

Kyung-Hoon Yoon

Kee-Shik Shin

Se-jin Ahn

Ji-Hye Gwak

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

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

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.

Method of manufacturing high density CIS thin film for solar cell and method of manufacturing thin film solar cell using the same

Growing community of inventors

Daejeon, South Korea

Seoung-Kyu Ahn