Printing photoactive ink for containing additive and method for manufacturing photoactive layer the same

• Main Authors: LEE, KWANG HEE, LEE, SEON GYU
• Format: Patent
• Language: English; Korean
• Published: 04.06.2018
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; ELECTRICITY; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

Provided are a TCB additive capable of performing a printing process in forming a photoactive layer of an organic solar cell and a method for manufacturing a photoactive ink using the TCB additive. The TCB additive having a resonance structure is mixed with a photoactive ink in air, and a photoactive film is produced through the printing process to form the photoactive layer. The formed photoactive layer has a uniform inner shape using the TCB additive having the resonance structure. In addition, the TCB additive is self-removed after the formation of the photoactive layer due to high vapor pressure and low boiling point, so no additional additive removal process is required. Therefore, it is possible to maintain the life of a solar cell and reduce the process cost, thereby improving the productivity. 유기태양전지의 광활성층을 형성함에 있어서 인쇄공정이 가능한 TCB 첨가제의 구조 및 TCB 첨가제를 이용하여 광활성 잉크를 제조하는 제조방법이 제공된다. 공명구조를 가지는 TCB 첨가제는 공기 중에 광활성 잉크와 혼합되어 인쇄공정을 통해 광활성 필름이 제조되어 광활성층이 형성된다. 형성된 광활성층은 공명구조를 가지는 TCB 첨가제를 사용하여 내부의 형상이 균일하다. 또한, TCB 첨가제는 높은 증기압과 낮은 끓는점으로 광활성층 형성 후에 자가 제거되어 추가적인 첨가제 제거공정이 필요하지 않다. 따라서, 태양전지의 수명유지 및 공정비가 절감되어 생산성을 향상시킬 수 있다.