Abstract: The present invention discloses a method for preparing bendable nanopaper-based flexible solar cells by 3D aerogel jet printing. In this method, firstly all-cellulose paper is soaked in ionic liquid, and quickly partially dissolved and regenerated under the condition of hot pressing to produce nanopaper with high transmittance and high haze; and then a 3D aerogel jet printer is used to precisely print the respective layers of a solar cell on the surface of the nanopaper as a flexible substrate material, wherein the solar cell comprises an anode PFN/Ag NWs, an active layer CuPc/C60/PTCBI/BCP and a cathode MoO3/Ag/MoO3, and the thickness of each layer is precisely controlled by setting the parameters of the 3D printer. The electrode grid line on the surface of the prepared paper flexible solar cell has a width less than 10 ?m and a thickness less than 20 nm.

Abstract: The present invention discloses a method for preparing bendable nanopaper-based flexible solar cells by 3D aerogel jet printing. In this method, firstly all-cellulose paper is soaked in ionic liquid, and quickly partially dissolved and regenerated under the condition of hot pressing to produce nanopaper with high transmittance and high haze; and then a 3D aerogel jet printer is used to precisely print the respective layers of a solar cell on the surface of the nanopaper as a flexible substrate material, wherein the solar cell comprises an anode PFN/Ag NWs, an active layer CuPc/C60/PTCBI/BCP and a cathode MoO3/Ag/MoO3, and the thickness of each layer is precisely controlled by setting the parameters of the 3D printer. The electrode grid line on the surface of the prepared paper flexible solar cell has a width less than 10 ?m and a thickness less than 20 nm.

Abstract: The present invention relates to a non-toxic process and system for pilot-scale production of cellulose products, and particularly to a process and system for pilot-scale production of cellulose products by using aqueous sodium hydroxide/urea solution pre-colled to lower than ?8° C., in which cellulose could dissolved rapidly. The said process and system can be used to produce fibers, films, chromatographic packings, or nonwovens of regenerated cellulose, as well as to produce a variety of high added-value products by adding other materials such as functional materials, nano-materials, etc.

Abstract: The present invention relates to a non-toxic process and system for pilot-scale production of cellulose products, and particularly to a process and system for pilot-scale production of cellulose products by using aqueous sodium hydroxide/urea solution pre-colled to lower than ?8° C., in which cellulose could dissolved rapidly. The said process and system can be used to produce fibers, films, chromatographic packings, or nonwovens of regenerated cellulose, as well as to produce a variety of high added-value products by adding other materials such as functional materials, nano-materials, etc.