The Academy, in cooperation with Juelich Research Center, (Forschungszentrum Jülich (FZJ)), hosted on Wednesday 19 February 2020, a scientific symposium on “High-efficiency crystalline silicon solar cells”, presented by Mohammed Jaber who got a Palestinian German Science Bridge PGSB scholarship in 2019, the researcher at the Institute of Energy and Climate Research IEK-5 (Photovoltaics) at Juelich Research Center (Forschungszentrum Jülich FZJ) in Germany, under the supervision of Prof. Dr. Uwe Rau and Dr. Stefan Haas from IEK-5 at FZJ and Dr. Abdelrahim Abusafa from An-Najah National University/Faculty Of Engineering.
This Seminar was attended by academics, researchers, and interested students from various Palestinian universities to explore the mechanism of crystalline silicon solar cells.
this seminar, have been presented an overview of German research organizations and research orientation and last update. furthermore, have been introduced Helmholtz Association and 19 Helmholtz Centers in Germany, and Forschungszentrum Jülich as one of them. Research fields, facilities, projects, and opportunities which offer by Forschungszentrum Jülich for Ph.D. candidates have been presented.
During the seminar of high-efficiency crystalline silicon solar cells have been discussed an overview of approaches and mechanisms used in high-efficiency crystalline silicon solar cells. Moreover, a comparison between commercial and lab-scale solar cells and what are criteria taken into account from both sides, and how to transfer the high-efficiency solar cells from lab-scale to industry by apply cost reduction concept. losses analyses and classification have been discussed and shown as a method to find out the reasons behind it, and then discussed common techniques to minimize it. Interdigitated back contact (IBC) structure which suggested as a solution for optical losses due to surface reflection and front contact shading. In the IBC structure, the front contact moved to the backside, and creates two meshings gride there. To minimize electrical losses due to recombination in contacts, the passivated contact (PC) approach is used to cover recombination centers at the silicon-metal interface. PC-IBC solar cells approaches are very promising, and solve the problem of low efficiency. On the other hand, PC-IBC solar cells facing high production costs; because of the large and complex manufacturing steps. Implement low-temperature processes and dispensing clean-room, can lead to minimizing the cost production. Hence speed up transferring this technology to an industrial scale.
The researcher, Mohammed Jaber, concluded the seminar with the importance of implementing these methods in the Palestinian research centers, using the local capabilities, and encouraging attendees from different Palestinian universities to engage in the PGSB program.
For information in Arabic, please check our Facebook page , also with Mohammad Jaber Seminar lecture.