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Sulfur metal-organic complex Pb(S2CNEt2)2 is synthesized with Pb(NO3)2 and Na(S2CNEt2)·3H2O as reactants in deionized water. Under the protection of argon, PbS quantum dots are synthesized by pyrolysis of the precursor Pb(S2CNEt2)2 in oleic and octadecene mixed solution. Four samples a, b, c, and d of PbS quantum dots are synthesized on the condition that the reaction times are 30, 60, 90, and120 min, respectively. Infrared spectrum of the precursor Pb(S2CNEt2)2 shows that two sulfur atoms of the ligand Na(S2CNEt2)·3H2O have successfully coordinated with Pb2+. X-ray powder diffraction and transmission electron microscopy results show that the PbS nano crystals are of pure cubic phase structure, and are well-dispersed spherical particles. UV-visible absorption spectrum and photoluminescence spectra of PbS quantum dots show that absorption spectrum and photoluminescence spectra both have red-shift along with reaction time extending. This indicates that absorption spectrum and photoluminescence spectra can be modulated by optimizing the thermal decomposition reaction time. The emission peak of sample is located at 1080 nm, which is matched to the silicon solar cell. It can be used as the fluorescent material of silicon luminescent solar concentrator.
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Keywords:
- pyrolysis /
- sulfur metal-organic complex /
- PbS quantum dots /
- reaction time
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[2] Cao J, Li S, Deng D W, Gu Y Q 2010 Trans. Nanjing Univ. Aeronaut. Astronaut. 21 21
[3] Guha S, Leppert V J, Risbud S H, Kang I 1998 Solid State Commun. 105 695
[4] Ellingson R J, Beard M C, Johnson J C, Yu P R, Micic O I, Nozik A J, Shabaev A, Efros A L 2005 Nano Lett. 5 865
[5] Luther J M, Beard M C, Song Q, Law M, Ellingson R J, Nozik A J 2007 Nano Lett. 7 1779
[6] Wang G W 2010 M. S. Dissertation (Chengdu: Electronics Science and Technology University) (in Chinese) [王国伟 2010 硕士学位论文(成都: 电子科技大学)]
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[10] Liao X, Yang F, Pu M H, Zhao Y, Cheng C H 2012 J. Inorganic Mater. 27 59 (in Chinese) [廖鑫, 杨峰, 蒲明华, 赵勇, 程翠华 2012 无机材料学报 27 59]
[11] Zhang J, Zhang J, Geng J J, Zhang Y, Ding J J, Sun S, Luo Z L, Bao J, Gao C 2012 Acta Opt. Sin. 32 0123003-1 (in Chinese) [张俊, 张军, 耿俊杰, 张义, 丁建军, 孙松, 罗震林, 鲍骏, 高琛 2012 光学学报 32 0123003-1]
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[13] Yue D, Zhang J W, Zhang J B, Lin Y 2011 Acta Phys. Chim. Sin. 27 1239 (in Chinese) [岳栋, 张建文, 张敬波, 林原 2011 物理化学学报 27 1239]
[14] Wang S, Yang S 2000 Langmuir 16 389
[15] Yu D, Wang D, Zhang S, Liu X, Qian Y J 2003 Cryst. Growth 249 195
[16] Trindade T, O’Brien P, Zhang X M, Motevalli M 1997 Mater. Chem. 7 1011
[17] Wang D, Yu D, Shao M S, Liu X, Yu W, Qian Y 2003 Cryst. Growth 257 384
[18] Wang S F, Gu F, Lu M K 2006 Langmuir 22 398
[19] Ding Y H, Liu X X, Guo R J 2007 Cryst. Growth 307 145
[20] Ding Y H, Liu X X, Guo R 2007 Colloid. Surf. A: Physicochem. Eng. Asp. 296 8
[21] Hines M A, Scholes G D 2003 Adv. Mater. 15 1844
[22] Rogach A L, Eychmller A, Hickey S G 2007 Small 3 536
[23] Nakamoto K, Fujita J, Condrate R A 1963 J. Chem. Phys. 39 423
[24] Chatt J, Duncanson L A, Venanzi L M 1956 Recueil des Travaux Chimiques des Pays-Bas 75 681
[25] Sargent E H 2005 Adv. Mater. 17 515
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[1] Zhao X S, Gan J Q, Liu G H, Chen A M 2008 Acta Chim. Sin. 66 1869 (in Chinese) [赵旭升, 干建群, 刘光华, 陈爱民 2008 化学学报 66 1869]
[2] Cao J, Li S, Deng D W, Gu Y Q 2010 Trans. Nanjing Univ. Aeronaut. Astronaut. 21 21
[3] Guha S, Leppert V J, Risbud S H, Kang I 1998 Solid State Commun. 105 695
[4] Ellingson R J, Beard M C, Johnson J C, Yu P R, Micic O I, Nozik A J, Shabaev A, Efros A L 2005 Nano Lett. 5 865
[5] Luther J M, Beard M C, Song Q, Law M, Ellingson R J, Nozik A J 2007 Nano Lett. 7 1779
[6] Wang G W 2010 M. S. Dissertation (Chengdu: Electronics Science and Technology University) (in Chinese) [王国伟 2010 硕士学位论文(成都: 电子科技大学)]
[7] McDonald S A, Konstantatos G, Zhang S G, Cyr P W, Klem E J D, Levina L, Sargent E H 2005 Nature Mater. 4 138
[8] Ghosh S, Shcherbatyuk G, Inman R, Clayton J 2010 SPIE Newsroom DOI:10.1117/2.1201005.002959.
[9] Shcherbatyuk G V, Inman R H, Wang C, Winston R, Ghosh S 2010 Appl. Phys. Lett. 96 191901
[10] Liao X, Yang F, Pu M H, Zhao Y, Cheng C H 2012 J. Inorganic Mater. 27 59 (in Chinese) [廖鑫, 杨峰, 蒲明华, 赵勇, 程翠华 2012 无机材料学报 27 59]
[11] Zhang J, Zhang J, Geng J J, Zhang Y, Ding J J, Sun S, Luo Z L, Bao J, Gao C 2012 Acta Opt. Sin. 32 0123003-1 (in Chinese) [张俊, 张军, 耿俊杰, 张义, 丁建军, 孙松, 罗震林, 鲍骏, 高琛 2012 光学学报 32 0123003-1]
[12] Tang S S, Zhang X Y, Zhang Y H, Xiang W D, Yang X Y 2008 Acta Phys. Sin. 57 4607 (in Chinese) [唐珊珊, 张希艳, 张延华, 向卫东, 杨昕宇 2008 57 4607]
[13] Yue D, Zhang J W, Zhang J B, Lin Y 2011 Acta Phys. Chim. Sin. 27 1239 (in Chinese) [岳栋, 张建文, 张敬波, 林原 2011 物理化学学报 27 1239]
[14] Wang S, Yang S 2000 Langmuir 16 389
[15] Yu D, Wang D, Zhang S, Liu X, Qian Y J 2003 Cryst. Growth 249 195
[16] Trindade T, O’Brien P, Zhang X M, Motevalli M 1997 Mater. Chem. 7 1011
[17] Wang D, Yu D, Shao M S, Liu X, Yu W, Qian Y 2003 Cryst. Growth 257 384
[18] Wang S F, Gu F, Lu M K 2006 Langmuir 22 398
[19] Ding Y H, Liu X X, Guo R J 2007 Cryst. Growth 307 145
[20] Ding Y H, Liu X X, Guo R 2007 Colloid. Surf. A: Physicochem. Eng. Asp. 296 8
[21] Hines M A, Scholes G D 2003 Adv. Mater. 15 1844
[22] Rogach A L, Eychmller A, Hickey S G 2007 Small 3 536
[23] Nakamoto K, Fujita J, Condrate R A 1963 J. Chem. Phys. 39 423
[24] Chatt J, Duncanson L A, Venanzi L M 1956 Recueil des Travaux Chimiques des Pays-Bas 75 681
[25] Sargent E H 2005 Adv. Mater. 17 515
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