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MAC Etch를 이용한 Si 나노 구조 제조

Silicon Nanostructures Fabricated by Metal-Assisted Chemical Etching of Silicon

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참고문헌

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초록

본 총설에서는 Si 비등방성 식각(anisotropic etching) 공정인 metal-assisted chemical etching (MAC etch 혹은 MACE) 분야 기본 원리, 중요 변수, 그리고 최근 연구 성과들을 정리하였다. 1990년에 최초로 Si 표면에 금속 촉매를 증착한 후 H2O2/HF 기반 식각을 진행하면 용액 중에서도 비등방성 식각을 통해 다양한 고종횡비(high aspect ratio) 나노구조를 형성할 수 있다는 것이 밝혀 졌다. 고가의 진공기반 장비가 필요한 건식 식각에 비해, 습식 식각을 통해서도 상대적으로 간편하고 경제적으로 종횡비가 큰 Si 마이크로/나노 구조를 만들 수 있게 되었다. 초기 연구들을 통해 MAC etch중 산화제가 촉매에 의해 환원되고, 촉매/Si 계면 근처의 Si 원자들이 선택적으로 식각/용해되어 수직 방향으로 촉매가 Si 기판을 파고 들어가며 비등방성 식각이 발생함이 밝혀졌다. MAC etch에 영향을 미치는 중요 변수로는 금속 촉매의 종류 및 모양, 식각액의 조성, Si기판의 도핑 농도이다. 또한 본 총설은 MAC etch에 의해 형성된 Si 나노 구조를 이용한 태양전지, 수소 연료, 리튬 이온 전지 등의 응용 분야를 다루었다.

Abstract

This review article summarizes metal-assisted chemical etching (MAC etch or MACE), an anisotropic etching method for Si, and describes principles, main factors, and recent achievements in literature. In 1990, it was discovered that, with metal catalyst on surface and H2O2/HF as etchant, Si substrate can be etched anisotropically, in even in solution. In contrast to high-cost vacuum-based dry etching methods, MAC etch enables to fabricate a variety of high aspect ratio nanostructures through wet etching process.

참고문헌 (28)

  1. X. G. Zhang, "Electrochemistry of Silicon and Its Oxide" (2001), Kluwer
  2. X. L. Li, "Metal Assisted Chemical Etching for High Aspect Ratio Nanostructures: A Review of Characteristics and Applications in Photovoltaics’", Curr. Opin. Sol. State & Mater. Sci, 16, pp.71~ (2012)
  3. Z. P. Huang, "Metal-Assisted Chemical Etching of Silicon: A Review", Adv. Mater, pp.285~ (2011)
  4. N. Geyer, "Model for the Mass Transport during Metal-Assisted Chemical Etching with Contiguous Metal Films As Catalysts", J. Phys. Chem., C, 116, pp.13446~ (2012)
  5. K. Peng, "Dendrite-Assisted Growth of Silicon Nanowires in Electroless Metal Deposition", Adv. Funct. Mater., 13, pp.127~ (2003)
  6. K. Tsujino, "Boring Deep Cylindrical Nanoholes in Silicon Using Silver Nanoparticles as a Catalyst", Adv. Mater, 17, pp.1045~ (2005)
  7. O. J. Hildreth, "Effect of Catalyst Shape and Etchant Composition on Etching Direction in Metal-Assisted Chemical Etching of Silicon to Fabricate 3D Nanostructures", Acs Nano, 3, pp.4033~ (2009)
  8. K. Rykaczewski, "Mask less and Resist-Free Rapid Prototyping of Three-Dimensional Structures Through Electron Beam Induced Deposition (EBID) of Carbon in Combination with Metal-Assisted Chemical Etching (MaCE) of Silicon", ACS App. Mater. & Inter, 2, pp.969~ (2010)
  9. O. J. Hildreth, "3D Out-of- Plane Rotational Etching with Pinned Catalysts in Metal- Assisted Chemical Etching of Silicon", Adv. Funct. Mater, 21, pp.3119~ (2011)
  10. K. Rykaczewski, "Guided Three-Dimensional Catalyst Folding during Metal-Assisted Chemical Etching of Silicon", Nano Lett, 11, pp.2369~ (2011)
  11. K. Rykaczewski, "Directed 2D-to-3D Pattern Transfer Method for Controlled Fabrication of Topologically Complex 3D Features in Silicon", Adv. Mater., 23, pp.659~ (2011)
  12. C. Chartier, "Metal- Assisted Chemical Etching of Silicon in HF", H2O2’, 2008, pp.53, 5509~
  13. Y. Q. Qu, "Electrically Conductive and Optically Active Porous Silicon Nanowires", Nano Lett, 9, pp.4539~ (2009)
  14. X. Zhong, "Unveiling the Formation Pathway of Single Crystalline Porous Silicon Nanowires", ACS Appl. Mater. & Inter, 3, pp.261~ (2011)
  15. S. Cruz, "Fabrication and Optimization of Porous Silicon Substrates for Diffusion Membrane Applications", J. Electrochem. Soc, 152, pp.C418~ (2005)
  16. M.-L. Zhang, "Preparation of Large-Area Uniform Silicon Nanowires Arrays through Metal- Assisted Chemical Etching", J. Phys. Chem. C, 112, pp.4444~ (2008)
  17. A. I. Hochbaum, "Enhanced Thermoelectric Performance of Rough Silicon Nanowires", Nature, 451, pp.163~ (2008)
  18. A. I. Hochbaum, "Single Crystalline Mesoporous Silicon Nanowires", Nano Lett, 9, pp.3550~ (2009)
  19. R. Chaoui, "Porous Silicon Antireflection Layer for Solar Cells Using Metal- Assisted Chemical Etching", Phys. Status Solidia, 205, pp.1724~ (2008)
  20. M. Lipinski, "Macroporous Texturing of Multicrystalline Silicon for Solar Cells", Arch. Metal. Mater, 53, pp.185~ (2008)
  21. D. H. Wan, "Using Self-Assembled Nanoparticles to Fabricate and Optimize Subwavelength Textured Structures in Solar Cells", J. Phys. Chem. C, 112, pp.20567~ (2008)
  22. K.-Q. Peng, "Platinum Nanoparticle Decorated Silicon Nanowires for Efficient Solar Energy Conversion", Nano Lett, 9, pp.3704~ (2009)
  23. X. W. Geng, "Metal-Assisted Chemical Etching Using Tollen’s Reagent to Deposit Silver Nanoparticle Catalysts for Fabrication of Quasi-ordered Silicon Micro", Nanostructures, 2011, pp.40, 2480~
  24. K.-Q. Peng, "Silicon Nanowires for Photovoltaic Solar Energy Conversion", Adv. Mater., 23, pp.198~ (2011)
  25. I. Oh, "Enhanced Photoelectrochemical Hydrogen Production from Silicon Nanowire Array Photocathode", Nano Lett, 12, pp.298~ (2012)
  26. B. M. Bang, "Scalable Approach to Multi-dimensional Bulk Si Anodes via Metal-assisted Chemical Etching", Energy & Environ. Sci, 4, pp.5013~ (2011)
  27. Y. M. Liu, "One-pot Synthesis of Three-dimensional Silver-embedded Porous Silicon Micronparticles for Lithium-ion Batteries", J. Mater. Chem, 21, pp.17083~ (2011)
  28. X. Zhong, "High-Capacity Silicon-Air Battery in Alkaline Solution", ChemSusChem, 5, pp.177~ (2012)

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