Abstract:
The present invention provides a device having superior solar cell properties by fabricating a thin film of a photoactive layer of a dense solar cell, in which the generation of cracks of the thin film may be prevented by using an ink composition for a photoactive layer of a solar cell including chalcogen compound particles, poly(vinyl pyrrolidone), and a solvent.
Abstract:
The present invention relates to a method for fabricating electronic devices using electrohydrodynamic (EHD) printing, which comprises the steps of: heating and stirring a first solution consisting of a metal precursor, an acid, an ammine, and a reducing agent to synthesize metal nanoparticles of which surface-oxide formation is controlled; making the metal nanoparticles formed in the previous step be dispersed in a non-aqueous solvent to prepare a conductive electrohydrodynamic-jet printable metal nano-ink composite; printing the conductive electrohydrodynamic-jet printable metal nano-ink composite on an insulating substrate; and heat-treating the insulating substrate on which the conductive electrohydrodynamic-jet printable metal nano-ink composite is printed.
Abstract:
본 발명은 캡핑된 나노 결정 실리콘의 제조방법에 관한 것으로, 자세하게는 환원제 및 캡핑제를 유기 용매에 투입하고, 실리콘 원료로서 테트라에톡시실란(TEOS) 또는 테트라메톡시실란(TMOS)을 사용함으로써 불순물이 없고, 재분산성이 우수하며, 합성방법이 단순하고, 환경 부담이 적은 캡핑된 나노 결정 실리콘의 제조방법에 관한 것이다.
Abstract:
The present invention relates to a method for preparing silicon nanoparticles. The preparation method according to the present invention is more simple than a known preparation method and economically prepares silicon nanoparticles. Silicon nanoparticles prepared by the method of the present invention have small and uniform sizes, and provide excellent electrical characteristics during the formation of a silicon thin film.
Abstract:
PURPOSE: A manufacturing method of a solar battery is provided to manufacture a photoactive layer based on a single phase semiconductor compound, which has dense and coarse grains, through a low temperature heat treatment of 550 °C or less. CONSTITUTION: An ink comprises a copper nanoparticle and a chalcogen compound particle of one or more elements selected from group 12-14. A manufacturing method of a solar cell photoactive layer comprises a step of forming a coating film by spreading ink which contains the copper nanoparticle and the chalcogen compound particle; and a step of manufacturing a copper and chalcogen compound layer by heat-treating the coating layer. The group 12 includes Zn, the group 13 is one or more selected from indium and gallium, the group 14 includes Sn, and the chalcogen element is one or more selected from sulfur and selenium.
Abstract:
본 발명은, 태양전지용 흡수층(CIS층)으로 사용하는데 적합한 흡수막 조성물 및 그 제조 방법과 이를 이용한 태양전지 셀 및 태양전지 모듈에 관한 것으로, 이를 위하여 본 발명은, 구리 화합물, 인듐 화합물 및 셀레늄 화합물을 0.8 ∼ 1.3 : 0.8 ∼ 1.3 : 1.7 ∼ 2.3의 화학양론비로 혼합한 흡수층 입자를 포함하는 태양전지용 흡수막 조성물 및 그 제조 방법을 제공함으로써, 상대적으로 치밀도가 우수한 CIS 조성물 및 그 막을 제조할 수 있으며, 별도의 추가 공정 없이 합성 단계에서 Cu : In : Se의 화학양론비를 원하는 조성으로 조절할 수 있는 것이다.
Abstract:
PURPOSE: An absorber film composition for a solar cell, a manufacturing method thereof, a solar cell using the same, and a solar cell using the same are provided to manufacture an absorption layer composition with relatively high density by synthesizing CIS particles including CuSe or CuSe2 of a low melting point to form a film. CONSTITUTION: A rear metal layer(104) is formed on a substrate(102). An absorbing layer(106) is formed on the rear metal layer. A buffer layer(108) is formed on the absorbing layer. A window layer(110) is formed on the buffer layer. A front electrode layer(112) is formed on the window layer.
Abstract:
본 발명은 친수성으로 표면 개질한 평균입경이 100nm 이하의 구리 나노입자 20 ~ 70 중량%, 물 10 ~ 45 중량%, 다가알콜 15 ~ 40 중량% 및 수계분산제 0.1 ~ 2 중량%를 포함하는 디지털프린팅용 수계 구리잉크 조성물 및 이의 제조방법에 관한 것이다. 본 발명에 따른 고농도 수계 구리잉크 조성물은 우수한 내산화성을 가지며 수계 조성물이므로 환경친화적이다. 또한, 유연기판과의 접착성이 우수하며, 잉크 젯팅성 및 배선의 선폭 제어가 용이하여 디지털인쇄용으로 적합하다.
Abstract:
PURPOSE: A method for controlling crystallization for an oxide semiconductor for a solution process at a low temperature is provided to promote crystallization by controlling the thickness of a thin film. CONSTITUTION: A metal oxide precursor solution is coated on a substrate with the thickness of a thin film between 1 and 10 nm. The coated thin film is processed at a temperature of 200 to 350 degrees. The diluted solutions of the metal oxide precursor are made to control the thickness of the thin film between 1 and 10 nm by the coating of the metal oxide precursor solution. The diluted solutions of the metal oxide precursor include the metal oxide precursor of 0.01 to 0.09M.
Abstract:
PURPOSE: A method for manufacturing low temperature water-based copper-indium-gallium-selenium(CuIn_xGa_1-xSe_2) nano particles is provided to control the particle of the copper-indium-gallium-selenium in a nano scale by controlling the size of an intermediate complex. CONSTITUTION: A complex solution containing copper and indium is prepared by reacting a copper compound, an indium compound, and a polymer electrolyte represented by chemical formula 1. A selenium compound is introduced into the complex solution, and copper-indium-(gallium-)selenium nano particles are prepared at low temperature. In chemical formula 1, R1 represents C6 to C30 aryl group, C1 to C18 alkyl group, C2 to C18 alkenyl group, or C3 to C18 cycloalkyl group. R2 is selected from a group including carboxylic acid, sulfonate, sulfate, ester sulfate, and phosphate. M1 is selected from sodium, ammonium, potassium, and amine. n represents an integer of 1 to 1000, and m represents an integer of 1 to 1000.