公开(公告)号：EP3985751A1

公开(公告)日：2022-04-20

申请号：EP20822015.2

申请日：2020-06-10

申请人： Kyungpook National University Industry-Academic Cooperation Foundation ,  Seoul National University R&DB Foundation

发明人： HEO, Young Woo ,  KIM, Hyeok ,  LEE, Joon Hyung ,  KIM, Jeong Joo ,  LEE, Sang Wook ,  HAN, Jeong Woo ,  KIM, Sang Hyub ,  LEE, Chang Hee

IPC分类号： H01L51/50 ,  H01L51/00 ,  H01L51/56

摘要： A quantum dot light emitting diode according to various embodiments of the present disclosure includes a first electrode and a second electrode that are opposite to each other; a light emitting layer that is located between the first electrode and the second electrode and includes a quantum dot; and an electron transport layer that is arranged between the first electrode and the light emitting layer and includes a metal oxide thin film, wherein the metal oxide thin film has a composition including at least one selected from the group consisting of In 2 O 3 , ZnO, SiO 2 and SnO 2 .

公开(公告)号：EP4083048A2

公开(公告)日：2022-11-02

申请号：EP20906729.7

申请日：2020-12-24

申请人： Kyungpook National University Industry-Academic Cooperation Foundation

发明人： JOO, Jin ,  LEE, Sang Wook ,  MIN, Gyeong Uk ,  YUN, Yeong Hun

IPC分类号： C07F13/00 ,  H01L51/42

摘要： The present invention relates to a preparation method for an organic halide used for preparation of perovskite, perovskite prepared thereby, and a solar cell. According to the present invention, an organic halide used for perovskite may be prepared by an ion-exchange method using alkali metal iodide or alkali metal bromide.

公开(公告)号：EP4177006A1

公开(公告)日：2023-05-10

申请号：EP20943007.3

申请日：2020-07-10

申请人： Seoul National University R & DB Foundation ,  Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： AHN, Sung Hoon ,  MIN, Soo Hong ,  LEE, Gil Yong ,  LEE, Tae Hun ,  LEE, Sang Wook ,  ZONTAR, Daniel

IPC分类号： B23Q17/09 ,  B23Q17/12 ,  G01B7/16

摘要： Strain sensors are attached to a workpiece, and resistance values of the strain sensors are measured with time while cutting the workpiece with a milling cutting machine. A power spectrum in a frequency domain is obtained by Fourier-transforming the resistance values measured with time. A power peak is found in the power spectrum to be outputted as a magnitude of vibration occurring during machining the workpiece. By attaching a strain sensor to a stamper of a plastic working machine, a resistance value of the strain sensor is measured while pressing a workpiece on a die with the stamper. A magnitude of the strain corresponding to the measured resistance value is used to obtain a corresponding plastic working force. By attaching the strain sensor directly to the workpiece, it is possible to monitor the state of the plastic working and/or cutting process of the workpiece with high precision at low cost.