PRECURSOR FOR MANUFACTURING LIGHT ABSORBING LAYER OF SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME

The present invention relates to a precursor for manufacturing a light absorbing layer of a solar cell. More particularly, the present invention relates to a precursor comprising nanoparticles and oxygen, and to a manufacturing method thereof. The nanoparticles include: at least one III group elemen...

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Bibliographische Detailangaben
Hauptverfasser:	YOON, SEOK HEE, YOON, SEOK HYUN, YOON, TAE HUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF CORRECTING FLUIDS DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FILLING PASTES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INKS INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SEMICONDUCTOR DEVICES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to a precursor for manufacturing a light absorbing layer of a solar cell. More particularly, the present invention relates to a precursor comprising nanoparticles and oxygen, and to a manufacturing method thereof. The nanoparticles include: at least one III group element selected from the group consisting of indium (In) and gallium (Ga); and at least one VI group element selected from the group consisting of sulfur (S) and selenium (Se). The precursor comprises 40 at% or less of oxygen (O) which is a substance causing oxidation in the precursor, based on the total atoms of the precursor. As various types of side reaction oxidants are not generated, bonding strength at the interface between Mo and CI(G)S thin film is improved, and photoconversion efficiency is increased because uniformity of crystal size and composition of the CI(G)S thin film is improved. Also, the nanoparticles have proper sizes and shape for coating, so film density of a coating layer is increased. 본 발명은, 태양전지의 광흡수층 제조용 전구체로서, 상기 전구체는 인듐(In) 및 갈륨(Ga)으로 이루어진 군에서 선택되는 하나 이상의 III족 원소와, 황(S) 및 셀레늄(Se)으로 이루어진 군에서 선택되는 하나 이상의 VI족 원소를 함유하는 나노 입자를 포함하고, 전구체 내의 산화 원인 물질인 산소(O)를 전구체의 전체 원자들을 기준으로 40 원자%(atomic %) 이하로 포함하고 있는 것을 특징으로 하는 전구체 및 이의 제조방법에 관한 것이다.