Industry Applicable Future Texturing Process for Diamond wire sawed Multi-crystalline Silicon Solar Cells: A review

다국어 초록 (Multilingual Abstract)

Current major photovoltaic (PV) market share (> 60%) is being occupied by the multicrystalline (mc)-silicon solar cells despite of low efficiency compared to single crystalline silicon solar cells. The diamond wire sawing technology reduces the production cost of crystalline silicon solar cells, it increases the optical loss for the existing mc-silicon solar cells and hence its efficiency is low in the current mass production line. To overcome the optical loss in the mc-crystalline silicon, caused by the diamond wire sawing, next generation texturing process is being investigated by various research groups for the PV industry. In this review, the limitation of surface structure and optical loss due to the reflectivity of conventional mc-silicon solar cells are explained by the typical texturing mechanism. Various texturing technologies that could minimize the optical loss of mc-silicon solar cells are explained. Finally, next generation texturing technology to survive in the fierce cost competition of photovoltaic market is discussed.

목차 (Table of Contents)

• ABSTRACT
• 1. Introduction
• 2. Conventional Texturing Technology for Multi-crystalline Silicon Cells
• 3. Next Generation Texturing Technology for Multi-silicon Solar Cells
• 4. Conclusion
• References

참고문헌 (Reference)

1 윤명수, "공정가스와 RF 주파수에 따른 웨이퍼 표면 텍스쳐 처리 공정에서 저반사율에 관한 연구" 한국진공학회 19 (19): 114-120, 2010

2 H. Wu, "Wire sawing technology : A state-of-the-art review" 43 : 1-9, 2016

3 M. Saadoun, "Vapour-etching-based porous silicon : a new approach" 405 : 29-34, 2002

4 PHOTON Consulting, LLC, "The true cost of solar power, how low can you go?"

5 B. Meinel, "Textural development of SiC and diamond wire sawed sc-silicon wafer" 27 : 330-336, 2012

6 C. Park, "Technology trends and prospects of silicon solar cells" 1 (1): 11-16, 2013

7 K. Fukui, "Surface texturing using reactive ion etching for multicrystalline silicon solar cells" 1997

8 L. A. Dobrazanski, "Surface texturing of multicrystalline silicon solar cells" 31 : 77-82, 2008

9 X. Gu, "Seed-assisted cast quasi-single crystalline silicon for photovoltaic application : Towards high efficiency and low cost silicon solar cells" 101 : 95-101, 2012

10 Michael J, "Sailor, Porous Silicon in Practice: Preparation, Characterization and Applications" Wiley-VCH Verlag GmbH & Co. KGaA 2012

11 M. Steinert, "Reactive Species Generated during Wet Chemical Etching of Silicon in HF/HNO3 Mixtures" 110 : 11377-11382, 2006

12 Fraunhofer Institute for Solar Energy Systems, ISE, "Photovoltaics Report" 2015

13 C. Pacholski, "Photonic crystal sensors based on porous silicon" 13 : 4694-4713, 2013

14 M. Abbott, "Optical and electrical properties of laser texturing for high effciency solar cells" 14 : 225-235, 2006

15 Z. G. Huang, "One-step-MACE nano/microstructures for high-efficient large-size multicrystalline Si solar cells" 143 : 302-310, 2015

16 K. Chen, "Novel texturing process for diamond-wire-sawn single-crystalline silicon solar cell" 133 : 148-155, 2015

17 F. Cao, "Next-generation multi-crystalline silicon solar cells : Diamond-wire sawing, nano-texture and high efficiency" 141 : 132-138, 2015

18 B. Kafle, "Nanotextured multicrystalline Al-BSF solar cells reaching 18% conversion efficiency using industrially viable solar cell processes" 9 (9): 448-452, 2015

19 B. Kafle, "Nanostructuring of c-Si surface by F2-based atmospheric pressure dry texturing process applications and materials science" 212 (212): 307-311, 2015

20 R. R. Bilyalov, "Multicrystalline silicon solar cells with porous silicon emitter" 60 : 391-420, 2000

21 Z. Huang, "Metal-Assisted Chemical Etching of Silicon : A Review" 23 : 285-308, 2011

22 G. W. Trucks, "Mechanism of HF etching of silicon surfaces: A theoretical understanding of hydrogen passivation" 65 (65): 504-507,

23 C. Gerhards, "Mechanically V-textured low cost multicrystalline silicon solar cells with a novel printing metallization" 1997

24 W. Neu, "Low-cost multicrystalline back-contact silicon solar cells with screen printed metallization" 74 : 139-146, 2002

25 P. Feng, "Improving the blue response and efficiency of multicrystalline silicon solar cells by surface nanotexturing" 37 : 306-309, 2016

26 W. Chen, "Improvement of conversion effi ciency of multi-crystalline silicon solar cells using reactive ion etching with surface pre-etching" 597 : 50-56, 2015

27 A. Volk, "Honeycomb structure on multicrystalline silicon Al-BSF solar cell with 17. 8% efficiency" 5 (5): 1027-1033, 2015

28 M. Steinert, "Experimental studies on the mechanism of wet chemical etching of silicon in HF/HNO3 mixtures" 152 (152): C843-C850, 2005

29 최평호, "Enhanced Efficiency of Multicrystalline Silicon Solar Cells Made via UV Laser Texturing" 한국물리학회 67 (67): 991-994, 2015

30 B. Bhushan, "Encyclopedia of Nanotechnology"

31 V. Benda, "Crystalline silicon cells and modules in present photovoltaics" 7 (7): 7-15, 2014

32 V. Y. Yerokhov, "Cost-effective methods of texturing for silicon solar cells" 72 : 291-298, 2002

33 H. Robbins, "Chemical etching of silicon" 107 (107): 108-111,

34 H. Robbins, "Chemical etching of silicon" 106 (106): 505-508, 1959

35 M. M. Hilali, "Bow in screen-printed back-contact industrial silicon solar cells" 91 : 1228-1233, 2007

36 H. Savin, "Black silicon solar cells with interdigitated backcontacts achieve 22. 1% efficiency" 10 : 624-629, 2015

37 M. B. Rabha, "Application of the chemical vapor-etching inpolycrystalline silicon solar cells" 252 : 488-493, 2005

38 S. K. Srivastava, "Antireflective ultra-fast nanoscale texturing for efficient multi-crystalline silicon solar cells" 115 : 656-666, 2015

39 S. Gatz, "Analysis of local Al-doped back surface fields for high efficiency screen-printed solar cells" 8 : 318-323, 2011

40 J. Oh, "An 18. 2%-efficient black-silicon solar cell achieved through control of carrier recombination in nanostructures" 7 : 743-748, 2012

41 E. Lohmuller, "Advanced metallization of rear surface passivated metal wrap through silicon solar cells" 8 : 546-551, 2011

42 A. Goodrich, "A wafer-based monocrystalline silicon photovoltaics road map : Utilizing known technology improvement opportunities for further reductions in manufacturing costs" 114 : 110-135, 2013

43 D. J. Monk, "A review of the chemical reaction mechanism and kinetics for hydrofluoric acid etching of silicon dioxide for surface micromachining applications" 232 : 1-12, 1993

44 M. Ju, "A new vapor texturing method for multicrystalline silicon solar cell applications" 153 : 66-69, 2008

45 J. Zhao, "19. 8% efficient ‘‘honeycomb’’ textured multicrystalline and 24. 4% monocrystalline silicon solar cells" 73 (73): 1991-1993, 1998