[논문]실리콘 이종접합 태양전지 개발동향

이아름; 유진수; 박성은; 박주형; 안승규; 조준식

doi:10.21218/cpr.2021.9.4.111

실리콘 이종접합 태양전지 개발동향
Recent Development of High-efficiency Silicon Heterojunction Technology Solar Cells 원문보기

Current photovoltaic research = 한국태양광발전학회논문지, v.9 no.4, 2021년, pp.111 - 122

이아름 (태양광연구단, 한국에너지기술연구원) , 유진수 (태양광연구단, 한국에너지기술연구원) , 박성은 (태양광연구단, 한국에너지기술연구원) , 박주형 (태양광연구단, 한국에너지기술연구원) , 안승규 (태양광연구단, 한국에너지기술연구원) , 조준식 (태양광연구단, 한국에너지기술연구원)

Abstract ▼ AI-Helper

Silicon heterojunction technology (HJT) solar cells have received considerable attention due to advantages that include high efficiency over 26%, good performance in the real world environment, and easy application to bifacial power generation using symmetric device structure. Furthermore, ultra-highly efficient perovskite/c-Si tandem devices using the HJT bottom cells have been reported. In this paper, we discuss the unique feature of the HJT solar cells, the fabrication processes and the current status of technology development. We also investigate practical challenges and key technologies of the HJT solar cell manufacturers for reducing fabrication cost and increasing productivity.

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표/그림 (26)

그림 Fig. 1. Progress in power conversion efficiencies of HJT solar cells
그림 Fig. 2. LCOE comparison of c-Si solar cells with different device structures
그림 Fig. 3. R&D roadmap of c-Si based solar cells
그림 Fig. 4. Schematic diagram of HJT solar cell with bifacial architecture ¹¹⁾.
그림 Fig. 5. Comparison of fabrication process of PERC, TopCon, and HJT solar cells
그림 Fig. 6. BatchTex tool from Rena Corp
그림 Fig. 7. Schematic diagram of SILEX II (Singulus Corp.)²¹⁾
그림 Fig. 8. Comparison of standard textured pyramids for BSF solar cell and textured pyramids for HJT solar cell²³⁾
표 Table 1. Comparison of wafer cleaning methods for HJT cell
그림 Fig. 9. The HELiA PECVD equipment with box-in-box arrangement (Meyer Burger Corp.)²⁷⁾
표 Table 3. Characteristics of PECVD tools from different equipment vendors
표 Table 4. Overview of PECVD tools for HJT solar cells
그림 Fig. 10. Octopus III with mirror chamber system of INDEOtec²⁸⁾
그림 Fig. 11. Schematic diagram of Cat-CVD equipment²⁹⁾
그림 Fig. 12. HELiA PVD system with rotary magnetron sputters (Meyer Burger Corp.)
그림 Fig. 13. Production system of Singulus GENERIS PVD system (Singulus Corp.)
표 Table 5. Overview of TCO deposition tools for HJT solar cells²⁶⁾
표 Table 6. Screen-printed silver paste deposited mass at front and backside as busbar number³³⁾
그림 Fig. 14. Process sequence of copper plating for HJT solar cell
그림 Fig. 15. Step process costs for bifacial HJT solar cell
그림 Fig. 16. I-V curve of the recent best HJT solar cell with bifacial system from Longi Corp
그림 Fig. 17. Status of HJT solar cell production capacity
표 Table 7. Top conversion efficiencies of HJT solar cells produced by different manufacturers
표 Table 8. Top power characteristics of HJT modules produced by different manufacturers
그림 Fig. 18. Market share expectation of different solar cell technologies
표 Table 2. Overview of wet-chemical cleaning tools for HJT solar cell

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