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RISS 인기검색어
- 검색키워드
- 저자 : Mengmeng Chu (검색결과 2 건)
- 무료
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Review of the Silicon Oxide and Polysilicon Layer as the Passivated Contacts for TOPCon Solar Cells
Mengmeng Chu,Muhammad Quddamah Khokhar,Hasnain Yousuf,Xinyi Fan,한승용,김영국,Suresh Kumar Dhungel,이준신 한국전기전자재료학회 2023 전기전자재료학회논문지 Vol.36 No.3
p-type Tunnel Oxide Passivating Contacts (TOPCon) solar cell is fabricated with a poly-Si/SiOx structure. It simultaneously achieves surface passivation and enhances the carriers’ selective collection, which is a promising technology for conventional solar cells. The quality of passivation is depended on the quality of the tunnel oxide layer at the interface with the c-Si wafer, which is affected by the bond of SiO formed during the subsequent annealing process. The highest cell efficiency reported to date for the laboratory scale has increased to 26.1%, fabricated by the Institute for Solar Energy Research. The cells used a p-type float zone silicon with an interdigitated back contact (IBC) structure that fabricates poly-Si and SiOx layer achieves the highest implied open-circuit voltage (iVoc) is 750 mV, and the highest level of edge passivation is 40%. This review presentsan overview of p-type TOPCon technologies, including the ultra-thin silicon oxide layer (SiOx) and poly-silicon layer (poly-Si), as well as the advancement of the SiOx and poly-Si layers. Subsequently, the limitations of improving efficiency are discussed in detail. Consequently, it is expected to provide a basis for the simplification of industrial mass production.
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Tianfei Chu,Mengmeng Cheng,Shifeng Hou,Yanzhao Yang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.120 No.-
Effective removal of excess manganese ions (Mn2+) from water is urgently needed to maintain humanhealth and ecological balance. To date, electrochemical deposition (ED) techniques have been widelyused for their simplicity and flexibility, while the active surface area and reliability of electrodes are stillmajor issues. Herein, modified graphite papers (MGP) fabricated by the anionic intercalation methodwere used as the working electrode to remove Mn2+ from wastewater via the electrochemical depositionmethod. The results showed that the highest removal of Mn2+ by MGP-E was achieved when the voltagewas 1.0 V, the deposition time was 6 h, and the pH value of the wastewater was 3.0. Under the aboveparameters, the removal rate of Mn2+ in simulated wastewater can reach over 99.73 %, while the removalrates in industrial wastewater and groundwater can reach 96.20 % and 99.27 %, respectively, which canmeet the standard of water treatment. The related tests confirmed that the deposition process had excellentcycling stability and low energy consumption. This study may provide an economical, sustainableand efficient electrode material for Mn2+ removal from industrial wastewater and groundwater via electrochemicaldeposition technology.
ScienceON
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