[2] Canham L T. Silicon quantum wire array fabrication by electrochemical and chemical dissolution of wafers［J］. Applied Physics Letters, 1990, 57(10): 1046-1046.
[3] Cullis A G, Canham L T. Visible light emission due to quantum size effects in highly porous crystalline silicon［J］. Nature, 1991, 353(6342): 335-338.
[4] Sham T K, Jiang D T, Coulthard I, et al. Origin of luminescence from porous silicon deduced by synchrotron-light-induced optical luminescence［J］. Nature, 1993, 363(6427): 331-334.
[5] Takeoka S, Fujii M, Hayashi S. Size-dependent photoluminescence from surface-oxidized Si nanocrystals in a weak confinement regime［J］. Physical Review B, 2000, 62(24): 16820-16825.
[6] Fujii M, Mimura A, Hayashi S, et al. Photoluminescence from Si nanocrystals dispersed in phosphosilicate glass thin films: improvement of photoluminescence efficiency［J］. Applied Physics Letters, 1999, 75(2): 184-186.
[7] Zhang H J, Lin L Z, Jiang S J. Fabrication of nc-Si/SiO2 structure by thermal oxidation method and its luminescence characteristics［J］. Chinese Optics Letters, 2009, 7(4): 332-334.
[8] Kim T W, Cho C H, Kim B H, et al. Quantum confinement effect in crystalline silicon quantum dots in silicon nitride grown using SiH4 and NH3［J］. Applied Physics Letters, 2006, 88(12): 123102-1-3
[9] Kim B H, Davis R F, Park S J. Optical property of silicon quantum dots embedded in silicon nitride by thermal annealing［J］. Thin Solid Films, 2010, 518(6): 1744-1746.
[10] Cho K S, Park N M, Kim T Y, et al. High efficiency visible electroluminescence from silicon nanocrystals embedded in silicon nitride using a transparent doping layer［J］. Applied Physics Letters, 2005, 86(7): 071909.
[11] Lin Juan, Yang Peizhi, Hua Qilin. Microstructure and luminous property of multilayer SiNx/Si/SiNx thin films［J］. Acta Optica Sinica, 2013, 33(2): 0231003.
[12] Song D, Cho E C, Conibeer G, et al. Fabrication and characterization of Si nanocrystals in SiC matrix produced by magnetron cosputtering［J］. Journal of Vacuum Science & Technology B, 2007, 25(4): 1327-1335.
[13] Song D, Cho E C, Cho Y H, et al. Evolution of Si (and SiC) nanocrystal precipitation in SiC matrix［J］. Thin Solid Films, 2008, 516(12): 3824-3830.
[14] Holmes J D, Ziegler K J, Doty R C, et al. Highly luminescent silicon nanocrystals with discrete optical transitions［J］. Journal of the American Chemical Society, 2001, 123(16): 3743-3748.
[15] Pettigrew K A, Liu Q, Power P P, et al. Solution synthesis of alkyl- and alkyl/alkoxy-capped silicon nanocrystals via oxidation of Mg2Si［J］. Chemistry of Materials, 2003, 15(21): 4005-4011.
[16] Mangolini L, Thimsen E, Kortshagen U. High-yield plasma synthesis of luminescent silicon nanocrystals［J］. Nano Letters, 2005, 5(4): 655-659.
[17] Niesar S, Pereira R N, Stegner A R, et al. Low-cost post-growth treatment of crystalline silicon nanoparticles improving surface and electronic properties［J］. Advanced Functional Materials, 2012, 22(6): 1190-1198.
[18] Buuren T V, Dinh L N, Chase L L, et al. Changes in the electronic properties of Si nanocrystals as a function of particle size［J］. Physical Review Letters, 1998, 80(17): 3803-3806.
[19] Heitmann J, Müller F, Zacharias M, et al. Silicon nanocrystals: size matters［J］. Advanced Materials, 2005, 17(7): 795-803.
[20] Jiang Lihua, Zeng Xianbin, Jin Weili, et al. Application of silicon quantum dots in solar cells［J］. Laser & Optoelectronics Progress, 2010, 47(8): 32-37.
[21] Liu X K, Zhang Y H, Yu T, et al. Optimum quantum yield of the light emission from 2 to 10 nm hydrosilylated silicon quantum dots［J］. Particle & Particle Systems Characterization, 2016, 33(1): 44-52.
[22] Mastronardi M L, Maier-Flaig F, Faulkner D, et al. Size-dependent absolute quantum yields for size-separated colloidally-stable silicon nanocrystals［J］. Nano Letters, 2011, 12(1): 337-342.
[23] Buuren T V, Dinh L N, Chase L L, et al. Changes in the electronic properties of Si nanocrystals as a function of particle size［J］. Physical Review Letters, 1998, 80(17): 3803-3806.
[24] Pi X D, Liptak R W, Campbell S A, et al. In-flight dry etching of plasma-synthesized silicon nanocrystals［J］. Applied Physics Letters, 2007, 91(8): 083112.
[25] Pi X D, Liptak R W, Nowak J D, et al. Air-stable full-visible-spectrum emission from silicon nanocrystals synthesized by an all-gas-phase plasma approach［J］. Nanotechnology, 2008, 19(24): 245603.
[26] Dasog M, De los Reyes G B, Titova L V, et al. Size vs surface: tuning the photoluminescence of freestanding silicon nanocrystals across the visible spectrum via surface groups［J］. ACS Nano, 2014, 8(9): 9636-9648.
[27] Ma Y S, Chen X B, Pi X D, et al. Theoretical study of chlorine for silicon nanocrystals［J］. The Journal of Physical Chemistry C, 2011, 115(26): 12822-12825.
[28] Ma Y S, Pi X D, Yang D R. Fluorine-passivated silicon nanocrystals: surface chemistry versus quantum confinement［J］. Journal of Physical Chemistry C, 2012, 116(9): 5401-5406.
[29] Wang R, Pi X D, Yang D R. First-principles study on the surface chemistry of 1.4 nm silicon nanocrystals: case of hydrosilylation［J］. Journal of Physical Chemistry C, 2012, 116(36): 19434-19443.
[30] Wang R, Pi X D, Yang D R. Surface modification of chlorine-passivated silicon nanocrystals［J］. Physical Chemistry Chemical Physics, 2013, 15(6): 1815-1820.
[31] Cheng K Y, Anthony R, Kortshagen U R, et al. Hybrid silicon nanocrystal-organic light-emitting devices for infrared electroluminescence［J］. Nano Letters, 2010, 10(4): 1154-1157.
[32] Puzzo D P, Henderson E J, Helander M G, et al. Visible colloidal nanocrystal silicon light-emitting diode［J］. Nano Letters, 2011, 11(4): 1585-1590.
[33] Cheng K Y, Anthony R, Kortshagen U R, et al. High-efficiency silicon nanocrystal light-emitting devices［J］. Nano Letters, 2011, 11(5): 1952-1956.
[34] Maier-Flaig F, Rinck J, Stephan M, et al. Multicolor silicon light-emitting diodes (SiLEDs)［J］. Nano Letters, 2013, 13(2): 475-480.
[35] Yao L, Yu T, Ba L, et al. Efficient silicon quantum dots light emitting diodes with an inverted device structure［J］. Journal of Materials Chemistry C, 2015, 4(4): 673-677.
[36] Anthony R J, Cheng K Y, Holman Z C, et al. An all-gas-phase approach for the fabrication of silicon nanocrystal light-emitting devices［J］. Nano letters, 2012, 12(6): 2822-2825.
[37] Ghosh B, Masuda Y, Wakayama Y, et al. Hybrid white light emitting diode based on silicon nanocrystals［J］. Advanced Functional Materials, 2014, 24(45): 7151-7160.
[38] Maier-Flaig F, Kübel C, Rinck J, et al. Looking inside a working SiLED［J］. Nano Letters, 2013, 13(8): 3539-3545.
[39] Mastronardi M L, Henderson E J, Puzzo D P, et al. Silicon nanocrystal oleds: Effect of organic capping group on performance［J］. Small, 2012, 8(23): 3647-3654.
[40] Tu C C, Tang L, Huang J, et al. Visible electroluminescence from hybrid colloidal silicon quantum dot-organic light-emitting diodes［J］. Applied Physics Letters, 2011, 98(21): 213102.
[41] Xin Y, Nishio K, Saitow K. White-blue electroluminescence from a Si quantum dot hybrid light-emitting diode［J］. Applied Physics Letters, 2015, 106(20): 201102.
[42] vrcˇek V, Slaoui A, Muller J C. Silicon nanocrystals as light converter for solar cells［J］. Thin Solid Films, 2004, (s451-452): 384-388.
[43] Stupca M, Alsalhi M, Al Saud T, et al. Enhancement of polycrystalline silicon solar cells using ultrathin films of silicon nanoparticle［J］. Applied Physics Letters, 2007, 91(6): 063107.
[44] Pi X D, Li Q, Li D, et al. Spin-coating silicon-quantum-dot ink to improve solar cell efficiency［J］. Solar Energy Materials & Solar Cells, 2011, 95(10): 2941-2945.
[45] Pi X, Zhang L, Yang D. Enhancing the efficiency of multicrystalline silicon solar cells by the inkjet printing of silicon-quantum-dot ink［J］. Journal of Physicsal Chemistry C, 2012, 116(40): 21240-21243.
[46] Yuan Z, Pucker G, Marconi A, et al. Silicon nanocrystals as a photoluminescence down shifter for solar cells［J］. Solar Energy Materials & Solar Cells, 2011, 95(4): 1224-1227.
[47] Sgrignuoli F, Ingenhoven P, Pucker G, et al. Purcell effect and luminescent downshifting in silicon nanocrystals coated back-contact solar cells［J］. Solar Energy Materials & Solar Cells, 2015, 132: 267-274.
[48] Liu C Y, Holman Z C, Kortshagen U R. Hybrid solar cells from P3HT and silicon nanocrystals［J］. Nano Letters, 2009, 9(1): 449-452.
[49] Liu C Y, Holman Z C, Kortshagen U R. Optimization of Si NC/P3HT hybrid solar cells［J］. Advanced Functional Materials, 2010, 20(13): 2157-2164.
[50] Ding Y, Gresback R, Liu Q, et al. Silicon nanocrystal conjugated polymer hybrid solar cells with improved performance［J］. Nano Energy, 2014, 9: 25-31.
[51] Ding Y, Sugaya M, Liu Q, et al. Oxygen passivation of silicon nanocrystals: influences on trap states, electron mobility, and hybrid solar cell performance［J］. Nano Energy, 2014, 10: 322-328.
[52] Ding Y, Gresback R, Yamada R. Hybrid silicon nanocrystal/poly(3-hexylthiophene-2, 5-diyl) solar cells from a chlorinated silicon precursor［J］. Japanese Journal of Applied Physics, 2013, 52(11S): 11NM04.
[53] Zhao S, Pi X D, Mercier C, et al. Silicon-nanocrystal-incorporated ternary hybrid solar cells［J］. Nano Energy, 2016, 26: 305-312.
[54] Tu C C, Tang L, Huang J, et al. Solution-processed photodetectors from colloidal silicon nano/micro particle composite［J］. Optics Express, 2010, 18 (21): 21622-21627.
[55] Lin T, Liu X, Zhou B, et al. A solution-processed UV-sensitive photodiode produced using a new silicon nanocrystal ink［J］. Advanced Functional Materials, 2014, 24(38): 6016-6022.
[56] Lu P, Mu W, Xu J, et al. Phosphorus doping in Si nanocrystals/SiO2 multilayers and light emission with wavelength compatible for optical telecommunication［J］. Scientific Reports, 2016, 6: 22888.
[57] Sun H C, Xu J, Liu Y, et al. Subband light emission from phosphorous-doped amorphous Si/SiO2 multilayers at room temperature［J］. Chinese Physics Letters, 2011, 28(6): 067802.
[58] Chen X B, Pi X D, Yang D R. Critical role of dopant location for P-doped Si nanocrystals［J］. Journal of Physical Chemistry C, 2011, 115(3): 661-666.
[59] Pi X D, Chen X B, Yang D R. First-principles study of 2.2 nm silicon nanocrystals doped with boron［J］. Journal of Physical Chemistry C, 2011, 115(20): 9838-9843.
[60] Pi X D, Ni Z Y, Yang D R, et al. Ab initio study on the effect of structural relaxation on the electronic and optical properties of P-doped Si nanocrystals［J］. Journal of Applied Physics, 2014, 116(19): 194304.
[61] Ni Z Y, Pi X D, Zhou S, et al. Size-dependent structures and optical absorption of boron-hyperdoped silicon nanocrystals［J］. Advanced Optical Materials, 2016, 4(5): 700-707.
[62] Norris D J, Efros A L, Erwin S C. Doped nanocrystals［J］. Science, 2008, 319(5871): 1176-1779.
[63] Chen T, Reich K V, Kramer N J, et al. Metal-insulator transition in films of doped semiconductor nanocrystals［J］. Nature Materials, 2016, 114(15): 299-303.
[64] Chen T, Skinner B, Xie W, et al. Carrier transport in films of alkyl-ligand-terminated silicon nanocrystals［J］. The Journal of Physical Chemistry C, 2014, 118(34): 19580-19588.
[65] Pi X D, Zalloum O H Y, Knights A P, et al. Electrical conduction of silicon oxide containing silicon quantum dots［J］. Journal of Physics Condensed Matter, 2006, 18(43): 9943-9950.
[66] Yu T, Wang F, Xu Y, et al. Graphene coupled with silicon quantum dots for high-performance bulk-silicon-based Schottky-junction photodetectors［J］. Advanced Materials, 2016, 28(24): 4912-4919.
[67] Kovalev D, Diener J, Heckler H, et al. Optical absorption cross sections of Si nanocrystals［J］. Physics Review B, 2000, 61(7): 4485-4487.
[68] Sychugov I, Pevere F, Luo J W, et al Single-dot absorption spectroscopy and theory of silicon nanocrystals［J］. Physics Review B, 2016, 93(16): 161413.
[69] Hessel C M, Reid D, Panthani M G, et al. Synthesis of ligand-stabilized silicon nanocrystals with size-dependent photoluminescence spanning visible to near-infrared wavelengths［J］. Chemistry of Materials, 2012, 24(2): 393-401.
[70] Comedi D, Zalloum O H Y, Wojcik J, et al. Light emission from hydrogenated and unhydrogenated Si-nanocrystal/Si dioxide composites based on PECVD-grown Si-rich Si oxide films［J］. IEEE Journal of Selected Topics in Quantum Electronics, 2006, 6(12): 1561-1569.
[71] Pavesi L, Dal N L, Mazzoleni C, et al. Optical gain in silicon nanocrystals［J］. Nature, 2000, 408(6811): 440-444.
[72] Ma K, Feng J Y, Zhang Z J. Improved photoluminescence of silicon nanocrystals in silicon nitride prepared by ammonia sputtering［J］. Nanotechnology, 2006, 17(18): 4650-4653.
[73] Jurbergs D, Rogojina E, Manolini L, et al. Silicon nanocrycrystals with ensemble quantum yields exceeding 60%［J］. Applied Physics Letters, 2006, 88(23): 233116.
[74] Gupta A, Swihart M T, Wiggers H. Luminescent colloidal dispersion of silicon quantum dots from microwave plasma synthesis: exploring the photoluminescence behavior across the visible spectrum［J］. Advanced Functional Materials, 2009, 19(5): 696-703.
[75] Mangolini L, Kortshagen U. Plasma-assisted synthesis of silicon nanocrystals inks［J］. Advanced Materials, 2007, 19(18): 2513-2519.
[76] Kelly J A, Veinot J G C. An investigation into near-UV hydrosilylation of freestanding silicon nanocrystals［J］. ACS Nano, 2010, 4(8): 4645-4656.
[77] Dasog M, Yang Z, Regli S, et al. Chemical insight into the origin of red and blue photoluminescence arising from freestanding silicon nanocrystals［J］. ACS Nano, 2013, 7(3): 2676-2685.
[78] Kulakci M, Serincan U, Turan R. Electroluminescence generated by a metal oxide semiconductor light emitting diode (MOS-LED) with Si nanocrystals embedded in SiO2 layers by ion implantation［J］. Semiconductor Science and Technology, 2006, 21(12): 1527-1532.
[79] Marconi A, Anopchenko A, Wang M, et al. High power efficiency in Si-nc/SiO2 multilayer light emitting devices by bipolar direct tunneling［J］. Applied Physics Letters, 2009, 94(22): 221110.
[80] Anopchenko A, Marconi A, Moser E, et al. Low-voltage onset of electroluminescence in nanocrystalline-Si/SiO2 multilayers［J］. Journal of Applied Physics, 2009, 106(3): 033104.
[81] Anopchenko A, Marconi A, Wang M, et al. Graded-size Si quantum dot ensembles for efficient light-emitting diodes［J］. Applied Physics Letters, 2011, 99(18): 181108.
[82] Cho K S, Park N M, Kim T Y, et al. High efficiency visible electroluminescence from silicon nanocrystals embedded in silicon nitride using a transparent doping layer［J］. Applied Physics Letters, 2005, 86(7): 071909.
[83] Chen L Y, Chen W H, Hong F C N. Visible electroluminescence from silicon nanocrystals embedded in amorphous silicon nitride matrix［J］. Applied Physics Letters, 2005, 86(19): 19350-19356.
[84] Sung G Y, Park N M, Shin J H, et al. Physics and device structures of highly efficient silicon quantum dots based silicon nitride light-emitting diodes［J］. IEEE Journal of Selected Topics in Quantum Electronics, 2006, 12(6): 1545-1555.
[85] Xu Wei, Yan Minyi, Xu Jie, et al. Electroluminescence from amorphous SiN/Si quantum dots/amorphous SiN sandwiched structures［J］. Chinese J Lasers, 2012, 39(7): 0706003.
[86] Huh C, Choi C J, Kim W, et al. Enhancement in light emission efficiency of Si nanocrystal light-emitting diodes by a surface plasmon coupling［J］. Applied Physics Letters, 2012, 100(18): 181108.
[87] Rui Y, Li S, Xu J, et al. Size-dependent electroluminescence from Si quantum dots embedded in amorphous SiC matrix［J］. Journal of Applied Physics, 2011, 110(6): 064322.
[88] Rui Y, Li S, Cao Y, et al. Structural and electroluminescent properties of Si quantum dots/SiC multilayers［J］. Applied Surface Science, 2013, 269(11): 37-40.
[89] Xu X, Cao Y Q, Lu P, et al. Electroluminescence devices based on Si quantum dots/SiC multilayers embedded in PN junction［J］. IEEE Photonics Journal, 2014, 6(1): 2200207.
[90] Liu C Y, Kortshagen U R. A silicon nanocrystal Schottky junction solar cell produced from colloidal silicon nanocrystals［J］. Nanoscale Research Letters, 2010, 5(8): 1253-1256.
[91] Cho E C, Park S, Hao X, et al. Silicon quantum dot/crystalline silicon solar cells［J］. Nanotechnology, 2008, 19(24): 245201.
[92] Cho E C, Green M A, Conibeer G, et al. Silicon quantum dots in a dielectric matrix for all-silicon tandem solar cells［J］. Advances in Optoelectronics, 2007, 2007: 69578.
[93] Hao X J, Cho E C, Flynn C, et al. Synthesis and characterization of boron-doped Si quantum dots for all-Si quantum dot tandem solar cells［J］. Solar Energy Materials and Solar Cells, 2009, 93(2): 273-279.
[94] Perez-Wurfl I, Hao X, Gentle A, et al. Si nanocrystal p-i-n diodes fabricated on quartz substrates for third generation solar cell applications［J］. Applied Physics Letters, 2009, 95(15): 153506.
[95] Kim S K, Cho C H, Kim B H, et al. Electrical and optical characteristics of silicon nanocrystal solar cell［J］. Applied Physics Letters, 2009, 95(14): 143120.
[96] Song D, Cho E C, Conibeer G, et al. Structural, electrical and photovoltaic characterization of Si nanocrystals embedded SiC matrix and Si nanocrystals/c-Si heterojunction devices［J］. Solar Energy Materials and Solar Cells, 2008, 92(4): 474-481.
[97] Lper P, Canino M, Qazzazie D, et al. Silicon nanocrystals embedded in silicon carbide: investigation of charge carrier transport and recombination［J］. Applied Physics Letters, 2013, 102(3): 033507.
[98] Guha S, Yang J, Yan B. High efficiency multi-junction thin film silicon cells incorporating nanocrystalline silicon［J］. Solar Energy Materials & Solar Cells, 2013, 119(8): 1-11.
[99] Sai H, Saito K, Hozuki N, et al. Relationship between the cell thickness and the optimum period of textured back reflectors in thin-film microcrystalline silicon solar cells［J］. Applied Physics Letters, 2013, 102(5): 053509.
[100] Yue G, Yan B, Sivec L, et al. Effect of impurities on performance of hydrogenated nanocrystalline silicon solar cells［J］. Solar Energy Materials & Solar Cells, 2012, 104(9): 109-112.
[101] Sderstrm K, Bugnon G, Biron R, et al. Thin-film silicon triple-junction solar cell with 12.5% stable efficiency on innovative flat light-scattering substrate［J］. Journal of Applied Physics, 2012, 112(11): 114503.
[102] Mai Y, Klein S, Carius R, et al. Open circuit voltage improvement of high-deposition-rate microcrystalline silicon solar cells by hot wire interface layers［J］. Applied Physics Letters, 2005, 87(7): 073503.
[103] Yan B, Yue G, Sivec L, et al. Innovative dual function nc-SiOx:H layer leading to a >16% efficient multi-junction thin-film silicon solar cell［J］. Applied Physics Letters, 2011, 99(11): 113512.
[104] vrcˇek V, Mariotti D, Shibata Y, et al. A hybrid heterojunction based on fullerenes and surfactant-free, self-assembled, closely packed silicon nanocrystals［J］. Journal of Physics D: Applied Physics, 2010, 43(41): 415402.
[105] vrcˇek V, Cook S, Kazaoui S, et al. Silicon nanocrystals and semiconducting single-walled carbon nanotubes applied to photovoltaic cells［J］. Journal of Physical Chemistry Letters, 2011, 2(14): 1646-1650.
[106] Kim Y, Kim C H, Lee Y, et al. Enhanced performance of dye-sensitized TiO2 solar cells incorporating COOH-functionalized Si nanoparticles［J］. Chemistry of Materials, 2010, 22(1): 207-211.
[107] Wang Rong, Pi Xiaodong, Yang Deren. Stduy on silicon quantum dots sensitized solar cells［J］. Acta Energiae Solaris Sinica, 2013, 34(12): 2228-2231.
[108] An X, Liu F, Jung Y J, et al. Tunable graphene-silicon heterojunctions for ultrasensitive photodetection［J］. Nano Letters, 2013, 13(3): 909-916.
[109] Zhu M, Li X, Guo Y, et al. Vertical junction photodetectors based on reduced graphene oxide/silicon Schottky diodes［J］. Nanoscale, 2014, 6(9): 4909-4914.
[110] Lü P, Zhang X J, Zhang X W, et al. High-sensitivity and fast-response graphene/crystalline silicon Schottky junction-based near-IR photodetectors［J］. IEEE Electron Device Letters, 2013, 34(10): 1337-1339.
[111] Kim J, Joo S S, Lee K W, et al. Near-ultraviolet-sensitive graphene/porous silicon photodetectors［J］. Applied Materials Interfaces, 2014, 6(23): 20880-20886.
[112] Shin D H, Kim S, Kim J M, et al. Graphene/Si-quantum-dot heterojunction diodes showing high photosensitivity compatible with quantum confinement effect［J］. Advanced Materials, 2015, 27(16): 2614-2620.
[113] Wang L, Jie J, Shao Z, et al. MoS2/Si heterojunction with vertically standing layered structure for ultrafast, high-detectivity, self-driven visible-near infrared photodetectors［J］. Advanced Functional Materials, 2015, 25(19): 2910-2919.
