F. Schäffler, "High-mobility Si and Ge structures," Semiconductor Science and Technology, 12, 1515 (1997).
 L. T. Ngo, D. Almécija, J. E. Sader, B. Daly, N. Petkov, J.D. Holmes, D. Erts, J.J. Boland, "Ultimate-strength germanium nanowires," Nano letters, 6, 2964-2968 (2006).
 H. C. Wu, T. C. Hou, Y. L. Chueh, L. J. Chen, H. T. Chiu, C. Y. Lee, "One-dimensional germanium nanostructures--formation and their electron field emission properties," Nanotechnology, 21, 455601 (2010).
 L. Cao, J. S. Park, P. Fan, B. Clemens, M. L. Brongersma, "Resonant germanium nanoantenna photodetectors," Nano letters, 10, 1229-1233 (2010).
 Z. Li, Q. Sun, X. D. Yao, Z. H. Zhu, G. Q. Lu, "Semiconductor nanowires for thermoelectrics," Journal of Materials Chemistry, 22, 22821 (2012).
 X. H. Sun, C. Didychuk, T. K. Sham, N. B. Wong, "Germanium nanowires: synthesis, morphology and local structure studies," Nanotechnology, 17, 2925-2930 (2006).
 E. Sutter, B. Ozturk, P. Sutter, "Selective growth of Ge nanowires by low-temperature thermal evaporation," Nanotechnology, 19, 435607 (2008).
 N. Wang, Y. Cai, R. Q. Zhang, "Growth of nanowires," Materials Science and Engineering: R: Reports, 60, 1-51 (2008).
 A. M. Morales, C. M. Lieber, "A Laser Ablation Method for the Synthesis of Crystalline Semiconductor Nanowires," Science, 279, 208-211 (1998).
 K. Kang, D. A. Kim, H. S. Lee, C. J. Kim, J. E. Yang, M. H. Jo, "Low-Temperature Deterministic Growth of Ge Nanowires Using Cu Solid Catalysts," Advanced Materials, 20, 4684-4690 (2008).
 H. J. Song, S. M. Yoon, H. J. Shin, H. Lim, C. Park, H. C. Choi, "Growth of germanium nanowires using liquid GeCl4 as a precursor: the critical role of Si impurities," Chemical communications, 5124-5126 (2009).
 T. Hanrath, B. A. Korgel, "Nucleation and growth of germanium nanowires seeded by organic monolayer-coated gold nanocrystals," Journal of the American Chemical Society, 124, 1424-1429 (2002).
 A. M. Chockla, B. A. Korgel, "Seeded germanium nanowire synthesis in solution," Journal of Materials Chemistry, 19, 996-1001 (2009).
 Y. Zhang, Y. Tang, N. Wang, C. Lee, I. Bello, S. Lee, "Germanium nanowires sheathed with an oxide layer," Physical Review B, 61, 4518 (2000).
 R. Wagner, W. Ellis, "Vapor‐liquid‐solid mechanism of single crystal growth," Applied Physics Letters, 4, 89-90 (1964).
 A. D. Gamalski, J. Tersoff, R. Sharma, C. Ducati, S. Hofmann, "Formation of metastable liquid catalyst during subeutectic growth of germanium nanowires," Nano letters, 10, 2972-2976 (2010).
 J. I. Lensch-Falk, E. R. Hemesath, D. E. Perea, L. J. Lauhon, "Alternative catalysts for VSS growth of silicon and germanium nanowires," Journal of Materials Chemistry, 19, 849-857 (2009).
 X. Lu, T. Hanrath, K. P. Johnston, B. A. Korgel, "Growth of single crystal silicon nanowires in supercritical solution from tethered gold particles on a silicon substrate," Nano letters, 3, 93-99 (2003).
 N. Bhardwaj, S. C. Kundu, "Electrospinning: a fascinating fiber fabrication technique," Biotechnol Adv, 28, 325-347 (2010).
 S. Y. Chew, J. Wen, E. K. Yim, K. W. Leong, "Sustained release of proteins from electrospun biodegradable fibers," Biomacromolecules, 6, 2017-2024 (2005).
 D. Li, Y. Wang, Y. Xia, "Electrospinning of polymeric and ceramic nanofibers as uniaxially aligned arrays," Nano letters, 3, 1167-1171 (2003).
 D. Li, Y. Wang, Y. Xia, "Electrospinning nanofibers as uniaxially aligned arrays and layer‐by‐layer stacked films," Advanced Materials, 16, 361-366 (2004).
 D. Yang, B. Lu, Y. Zhao, X. Jiang, "Fabrication of Aligned Fibrous Arrays by Magnetic Electrospinning," Advanced Materials, 19, 3702-3706 (2007).
 C. S. Kumar, "Raman Spectroscopy for Nanomaterials Characterization," Springer, (2012).
 H. Wang, X. Han, X. Ou, C. S. Lee, X. Zhang, S. T. Lee, "Silicon nanowire based single-molecule SERS sensor," Nanoscale, 5, 8172-8176 (2013).
 A. M. Gabudean, D. Biro, S. Astilean, "Localized surface plasmon resonance (LSPR) and surface-enhanced Raman scattering (SERS) studies of 4-aminothiophenol adsorption on gold nanorods," Journal of Molecular Structure, 993, 420-424 (2011).
 J. Flipse, F. Bakker, A. Slachter, F. Dejene, B. van Wees, "Cooling and heating with electron spins: Observation of the spin Peltier effect," arXiv preprint arXiv:1109.6898, (2011).
 J. Chen, Z. Yan, L. Wu, "The influence of Thomson effect on the maximum power output and maximum efficiency of a thermoelectric generator," Journal of applied physics, 79, 8823-8828 (1996).
 A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J. K. Yu, W. A. Goddard, J. R. Heath, "Silicon nanowires as efficient thermoelectric materials," Nature, 451, 168-171 (2008).
 A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, P. Yang, "Enhanced thermoelectric performance of rough silicon nanowires," Nature, 451, 163-167 (2008).
 M. C. Wingert, Z. C. Chen, E. Dechaumphai, J. Moon, J. H. Kim, J. Xiang, R. Chen, "Thermal conductivity of ge and ge-si core-shell nanowires in the phonon confinement regime," Nano letters, 11, 5507-5513 (2011).
 N. Bhardwaj, S. C. Kundu, "Electrospinning: a fascinating fiber fabrication technique," Biotechnology advances, 28, 325-347 (2010).
 N. Fukata, K. Sato, M. Mitome, Y. Bando, T. Sekiguchi, M. Kirkham, J. I. Hong, Z. L. Wang, R. L. Snyder, "Doping and Raman characterization of boron and phosphorus atoms in germanium nanowires," ACS nano, 4, 3807-3816 (2010).
 N. Fukata, "Impurity doping in silicon nanowires," Advanced Materials, 21, 2829-2832 (2009).
 M. Asen-Palmer, K. Bartkowski, E. Gmelin, M. Cardona, A. Zhernov, A. Inyushkin, A. Taldenkov, V. Ozhogin, K. Itoh, E. Haller, "Thermal conductivity of germanium crystals with different isotopic compositions," Physical Review B, 56, 9431 (1997).
 G. Kumar, G. Prasad, R. Pohl, "Experimental determinations of the Lorenz number," Journal of materials science, 28, 4261-4272 (1993).
 C. Kittel, "Introduction to Solid State Physics," Wiley, 8th edn, (2004).
 M. Holland, "Analysis of lattice thermal conductivity," Physical Review, 132, 2461 (1963).
 K. Hippalgaonkar, B. Huang, R. Chen, K. Sawyer, P. Ercius, A. Majumdar, "Fabrication of microdevices with integrated nanowires for investigating low-dimensional phonon transport," Nano letters, 10, 4341-4348 (2010).
 Z. Wang, J. E. Alaniz, W. Jang, J. E. Garay, C. Dames, "Thermal conductivity of nanocrystalline silicon: importance of grain size and frequency-dependent mean free paths," Nano letters, 11, 2206-2213 (2011).
 J. K. Yu, S. Mitrovic, D. Tham, J. Varghese, J. R. Heath, "Reduction of thermal conductivity in phononic nanomesh structures," Nature nanotechnology, 5, 718-721 (2010).
 S. K. Bux, R. G. Blair, P. K. Gogna, H. Lee, G. Chen, M. S. Dresselhaus, R. B. Kaner, J. P. Fleurial, "Nanostructured Bulk Silicon as an Effective Thermoelectric Material," Advanced Functional Materials, 19, 2445-2452 (2009).
 D. K. Brice, K. B. Winterbon, "Ion implantation range and energy deposition distributions," Ifi/Plenum, New York, (1975).
 A. Shakouri, "Recent Developments in Semiconductor Thermoelectric Physics and Materials," Annual Review of Materials Research, 41, 399-431 (2011).
 J. Kim, J. H. Bahk, J. Hwang, H. Kim, H. Park, W. Kim, "Thermoelectricity in semiconductor nanowires," physica status solidi (RRL) - Rapid Research Letters, 7, 767-780 (2013).
 A. X. Levander, T. Tong, K. M. Yu, J. Suh, D. Fu, R. Zhang, H. Lu, W. J. Schaff, O. Dubon, W. Walukiewicz, D. G. Cahill, J. Wu, "Effects of point defects on thermal and thermoelectric properties of InN," Applied Physics Letters, 98, 012108 (2011).
 A. Dhawan, Y. Du, F. Yan, M. D. Gerhold, V. Misra, T. Vo-Dinh, "Methodologies for developing surface-enhanced Raman scattering (SERS) substrates for detection of chemical and biological molecules," Sensors Journal, IEEE, 10, 608-616 (2010).
 K. C. Bantz, A. F. Meyer, N. J. Wittenberg, H. Im, Ö. Kurtuluş, S. H. Lee, N. C. Lindquist, S. H. Oh, C. L. Haynes, "Recent progress in SERS biosensing," Physical Chemistry Chemical Physics, 13, 11551-11567 (2011).
 A. Lahiri, R. Wen, S. Kuimalee, S. I. Kobayashi, H. Park, "One-step growth of needle and dendritic gold nanostructures on silicon for surface enhanced Raman scattering," CrystEngComm, 14, 1241 (2012).
 T. Wang, Z. Zhang, F. Liao, Q. Cai, Y. Li, S. T. Lee, M. Shao, "The effect of dielectric constants on noble metal/semiconductor SERS enhancement: FDTD simulation and experiment validation of Ag/Ge and Ag/Si substrates," Scientific reports, 4, 4052 (2014).
 G. Meng, J. Paulose, D. R. Nelson, V. N. Manoharan, "Elastic instability of a crystal growing on a curved surface," Science, 343, 634-637 (2014).
 P. Etchegoin, L. F. Cohen, H. Hartigan, R. J. C. Brown, M. J. T. Milton, J. C. Gallop, "Electromagnetic contribution to surface enhanced Raman scattering revisited," The Journal of Chemical Physics, 119, 5281 (2003).
 P. G. Etchegoin, E. C. Le Ru, "A perspective on single molecule SERS: current status and future challenges," Physical chemistry chemical physics : PCCP, 10, 6079-6089 (2008).
 X. Deng, G. B. Braun, S. Liu, P. F. Sciortino, B. Koefer, T. Tombler, M. Moskovits, "Single-order, subwavelength resonant nanograting as a uniformly hot substrate for surface-enhanced Raman spectroscopy," Nano letters, 10, 1780-1786 (2010).
 K. L. Kelly, E. Coronado, L. L. Zhao, G. C. Schatz, "The optical properties of metal nanoparticles: the influence of size, shape, and dielectric environment," The Journal of Physical Chemistry B, 107, 668-677 (2003).
 B. K. Gu, M. K. Shin, K. W. Sohn, S. I. Kim, S. J. Kim, S. K. Kim, H. Lee, J. S. Park, "Direct fabrication of twisted nanofibers by electrospinning," Applied Physics Letters, 90, 263902 (2007).
 C. L. Zhang, K. P. Lv, N. Y. Hu, L. Yu, X. F. Ren, S. L. Liu, S. H. Yu, "Macroscopic-scale alignment of ultralong Ag nanowires in polymer nanofiber mat and their hierarchical structures by magnetic-field-assisted electrospinning," Small, 8, 2936-2940 (2012).
 R. Gunawidjaja, S. Peleshanko, H. Ko, V. V. Tsukruk, "Bimetallic Nanocobs: Decorating Silver Nanowires with Gold Nanoparticles," Advanced Materials, 20, 1544-1549 (2008).
 Y. Zhao, M. Shao, R. Que, Z. Zhang, "The surface-enhanced Raman scattering for monitoring histidine and tyrosine using silver vanadate nanoribbons as substrates," Journal of Physics and Chemistry of Solids, 74, 255-258 (2013).
 B. Yu, M. Zebarjadi, H. Wang, K. Lukas, H. Wang, D. Wang, C. Opeil, M. Dresselhaus, G. Chen, Z. Ren, "Enhancement of thermoelectric properties by modulation-doping in silicon germanium alloy nanocomposites," Nano letters, 12, 2077-2082 (2012).
 K. D. Osberg, M. Rycenga, G. R. Bourret, K. A. Brown, C. A. Mirkin, "Dispersible Surface‐Enhanced Raman Scattering Nanosheets," Advanced Materials, 24, 6065-6070 (2012).