ALEXANDRIA, Va., March 3 -- United States Patent no. 12,568,711, issued on March 3, was assigned to LONGi Green Energy Technology Co. Ltd. (Xi'an, China).
"Back-contact solar cell and preparation method therefor" was invented by Dongwei Zhang (Xi'an, China), Shuai Wu (Xi'an, China), Yunpeng Li (Xi'an, China), Feng Ye (Xi'an, China), Liang Fang (Xi'an, China) and Xixiang Xu (Xi'an, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses a back-contact solar cell and a preparation method thereof. The back-contact solar cell includes: a semiconductor substrate; a tunnel oxide layer and a doped crystalline silicon layer, where the tunnel oxide layer is located in a first region, an...