利用高分子包覆法(Polymer Capping Method)在Si衬底上生长了颗粒分布均匀、致密的纳米ZnO薄膜.样品的形貌和光学性能分别使用SEM,AFM和PL谱进行表征.实验发现,前驱体溶液的pH值对纳米颗粒的分散性和尺寸有很大影响,进而影响紫外发光峰位.在本实验条件下,随纳米颗粒尺寸增大,PL谱的紫外发光峰红移,符合量子尺寸效应.
参考文献
| [1] | Yang H;Li Y;Norton DP;Pearton SJ;Jung S;Ren F;Boatner LA .Characteristics of unannealed ZnMgO/ZnO p-n junctions on bulk (100) ZnO substrates[J].Applied physics letters,2005(17):2103-1-2103-3-0. |
| [2] | Sato Y;Yodogawa M;Yamamoto T;Shibata N;Ikuhara Y .Dopant-segregation-controlled ZnO single-grain-boundary varistors[J].Applied physics letters,2005(15):2112-1-2112-3-0. |
| [3] | Emanetoglu NW;Zhu J;Chen Y;Zhong J;Chen YM;Lu YC .Surface acoustic wave ultraviolet photodetectors using epitaxial ZnO multilayers grown on r-plane sapphire[J].Applied physics letters,2004(17):3702-3704. |
| [4] | Q. H. Li;Y. X. Liang;Q. Wan;T. H. Wang .Oxygen sensing characteristics of individual ZnO nanowire transistors[J].Applied physics letters,2004(26):6389-6391. |
| [5] | NASUNO Y;KOHAMA N;NISHIMURA K et al.Effect of perforated transparent electrodes on light transmittance and light scattering in substrates used for microcrystalline silicon thin-film solar cells[J].Applied Physics Letters,2006,88:071909-071911. |
| [6] | Li LP;Qiu XQ;Li GS .Correlation between size-induced lattice variations and yellow emission shift in ZnO nanostructures[J].Applied physics letters,2005(12):4101-1-4101-3-0. |
| [7] | Jing LQ.;Xu ZL.;Shang J.;Sun XJ.;Cai WM.;Guo HC. .The preparation and characterization of ZnO ultrafine particles[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):356-361. |
| [8] | F. K. SHAN;Z. F. LIU;G. X. LIU;W. J. LEE;G. H. LEE;I. S. KIM;B. C. SHIN;Y. S. YU .Studies of ZnO Thin Films On Sapphire (0001) Substrates Deposited by Pulsed Laser Deposition[J].Journal of electroceramics,2004(1/3):189-194. |
| [9] | DEMANGEOT F;PAILLARD V et al.Experimental study of LO phonons and excitons in ZnO nanoparticles produced by room-temperature organometallic synthesis[J].Applied Physics Letters,2006,88:071921-071923. |
| [10] | SPANHEL L;AADERSON M .Semiconductor clusters in the sol-gel process:quantized aggregation,gelation,and crystal growth in concentrated zinc oxide colloids[J].Journal of the American Chemical Society,1991,113:2826-2833. |
| [11] | C. L. Yang;J. N. Wang;W. K. Ge;L. Guo;S. H. Yang;D. Z. Shen .Enhanced ultraviolet emission and optical properties in polyvinyl pyrrolidone surface modified ZnO quantum dots[J].Journal of Applied Physics,2001(9):4489-4493. |
| [12] | NAPPER DH .Flocculation studies of sterically stabilized dispersions[J].Journal of Colloid and Interface Science,1970,32(01):106-114. |
| [13] | PAUL H C.Principles of Colloid and Surface Chemistry[M].New York Marcel Dekker Inc,1986:710-730. |
| [14] | Zhang Y;Lin BX;Sun XK;Fu ZX .Temperature-dependent photoluminescence of nanocrystalline ZnO thin films grown on Si (100) substrates by the sol-gel process[J].Applied physics letters,2005(13):1910-1-1910-3-0. |
| [15] | Shan W;Walukiewicz W;Ager JW;Yu KM;Yuan HB;Xin HP;Cantwell G;Song JJ .Nature of room-temperature photoluminescence in ZnO[J].Applied physics letters,2005(19):1911-1-1911-3-0. |
| [16] | Li Shi;Qing Hao;Choongho Yu;Natalio Mingo;Xiangyang Kong;Z. L. Wang .Thermal conductivities of individual tin dioxide nanobelts[J].Applied physics letters,2004(14):2638-2640. |
| [17] | Ozgur U;Alivov YI;Liu C;Teke A;Reshchikov MA;Dogan S;Avrutin V;Cho SJ;Morkoc H .A comprehensive review of ZnO materials and devices - art. no. 041301[J].Journal of Applied Physics,2005(4):41301-0. |
| [18] | BRUS L .Electronic wavefunctions in semiconductor ckusters-experiment and theory[J].Journal of Physical Chemistry,1986,90:2555-2560. |
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