A new development in solar technology uses pulse-shaped light to enhance the efficiency of PbS quantum dot solar cells, promising easier production and broader application.
A research team headed by Professor Jongmin Choi from the Department of Energy Science and Engineering at Daegu Gyeongbuk Institute of Science and Technology has successfully developed a “PbS quantum dot” capable of quickly improving the electrical conductivity of solar cells. This collaborative effort involved Professor Changyong Lim of the Department of Energy Chemical Engineering at Kyungpook National University, led by President Wonhwa Hong, and Professor Jongchul Lim from the Department of Energy Engineering at Chungnam National University, under the leadership of President Jeongkyoum Kim.
The team identified a method to enhance electrical conductivity through the use of “pulse-shaped” light, which generates substantial energy in a concentrated manner at regular intervals. This method could replace the heat treatment process, which requires a significant amount of time to achieve the same result. This approach is expected to facilitate the production and commercialization of PbS quantum dot solar cells in the future.
Benefits of PbS Quantum Dots
PbS quantum dots are DOI: 10.1002/smll.202400380
This research was supported by the Creative Allied Project of The National Research Council of Science and Technology of Korea, the Basic Research Lab Project of The National Research Foundation of Korea, and the Regional Innovation Leading Research Center for Carbon-Neutral Intelligent Energy System of Kyungpook National University. The results were published online in the international journal, “Small” (co-first author: Eonji Lee, PhD student, Department of Energy Science and Engineering, DGIST, and Wonjong Lee, MSc integrated student, Department of Energy Engineering, Chungnam National University).