Synthesis, characterization and application of CdSe quantum dots

Karan Surana; Pramod K Singh; Hee-Woo Rhee; B. Bhattacharya

Journal of Industrial and Engineering Chemistry, Vol.20, No.6, 4188-4193, November, 2014

DOI10.1016/j.jiec.2014.01.019 Export Citation

Synthesis, characterization and application of CdSe quantum dots

Karan Surana, Pramod K Singh, Hee-Woo Rhee¹, and B. Bhattacharya^†

Material Research Laboratory, School of Basic Sciences and Research, Sharda University, Greater Noida 201310, India
¹Department of Chemical & Biomolecular Engineering, Sogang University, Seoul, South Korea

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Contrary to popularly prepared cadmium selenide (CdSe) quantum dots (QDs) at temperatures above 200 ℃, we here report synthesis of CdSe QDs at room temperature and above using wet-chemical method. Also we have used a much safer binder than the commonly used TOPO/TBPO. Controlling the size and shape of the nanocrystals allows us to control their bandgap over a wide range and thus, QDs can be prepared that can absorb and emit light over the entire frequency range of the solar spectrum. The prepared CdSe QDs were characterized by UV-Vis absorption, PL spectra, XRD and TEM. Particle size was also calculated according to the Brus equation. We have fabricated a dye sensitized solar cell using our CdSe QDs which shows a maximum efficiency of 0.22% at 1 Sun condition.

Keywords:Quantum dot;SEM;TEM;Dye sensitized solar cell

[References]

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Rosetti R, Brus L, J. Phys. Chem., 86, 4470 (1982)
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Peng XG, Manna L, Yang WD, Wickham J, Scher E, Kadavanich A, Alivisatos AP, Nature, 404(6773), 59 (2000)
Shukla N, Nigra MM, Luminescence, 25, 14 (2010)
Parak WJ, Pellegrino T, Plank C, Nanotechnology, 16, 9 (2005)
Klein DL, Roth R, Lim AK, Alivisatos AP, Mceuen PL, Nature, 389(6652), 699 (1997)
Jeon SO, Lee JY, J. Ind. Eng. Chem., 17(1), 105 (2011)
Chen J, Song JL, Sun XW, Deng WQ, Jiang CY, Lei W, Huang JH, Liu RS, Appl. Phys. Lett., 94, 153115 (2009)
Lu J, Xie Y, Xu F, Zhu L, J. Mater. Chem., 12, 2755 (2002)
Ma XD, Qian XF, Yin J, Xi HA, Zhu ZK, J. Colloid Interface Sci., 252(1), 77 (2002)
Singh PK, Nagrale RK, Pandey SP, Rhee HW, Bhattacharya B, Adv. Nat. Sci. -Nanosci. Nanotechnol., 2, 023002 (2011)
Tauc J, Amorphous and Liquid Semiconductors, Plenum Press, New York, NY, 1974.
Mahmoud WE, Al-Amri AM, Yaghmour SJ, Opt. Mater., 34, 1082 (2012)
Brus L, J. Phys. Chem., 90, 2555 (1986)
Kippeny T, Swafford LA, Rosenthal SJ, J. Chem. Educ., 79, 1094 (2002)
Baskoutas S, Terzis AF, J. Appl. Phys., 99, 013708 (2006)
Talapin DV, Shevchenko EV, Kornowski A, Gaponik N, Haase M, Rogach AL, Weller H, Adv. Mater., 13(24), 1868 (2001)
Murray CB, Kagan CR, Bawendi MG, Science, 270(5240), 1335 (1995)
Loef R, Joutepen AJ, Talgorn E, Schoonman J, Goossens A, Nano Lett., 9, 856 (2009)

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[1] Ekimov AI, Onushchenko AA, Tsekhomskii VA, Fiz. Khim. Stekla, 6, 511 (1980)

[2] Rosetti R, Brus L, J. Phys. Chem., 86, 4470 (1982)

[3] El-Sayed MA, Acc. Chem. Res., 37, 326 (2004)

[4] Peng XG, Manna L, Yang WD, Wickham J, Scher E, Kadavanich A, Alivisatos AP, Nature, 404(6773), 59 (2000)

[5] Shukla N, Nigra MM, Luminescence, 25, 14 (2010)

[6] Parak WJ, Pellegrino T, Plank C, Nanotechnology, 16, 9 (2005)

[7] Klein DL, Roth R, Lim AK, Alivisatos AP, Mceuen PL, Nature, 389(6652), 699 (1997)

[8] Jeon SO, Lee JY, J. Ind. Eng. Chem., 17(1), 105 (2011)

[9] Chen J, Song JL, Sun XW, Deng WQ, Jiang CY, Lei W, Huang JH, Liu RS, Appl. Phys. Lett., 94, 153115 (2009)

[10] Lu J, Xie Y, Xu F, Zhu L, J. Mater. Chem., 12, 2755 (2002)

[11] Ma XD, Qian XF, Yin J, Xi HA, Zhu ZK, J. Colloid Interface Sci., 252(1), 77 (2002)

[12] Singh PK, Nagrale RK, Pandey SP, Rhee HW, Bhattacharya B, Adv. Nat. Sci. -Nanosci. Nanotechnol., 2, 023002 (2011)

[13] Tauc J, Amorphous and Liquid Semiconductors, Plenum Press, New York, NY, 1974.

[14] Mahmoud WE, Al-Amri AM, Yaghmour SJ, Opt. Mater., 34, 1082 (2012)

[15] Brus L, J. Phys. Chem., 90, 2555 (1986)

[16] Kippeny T, Swafford LA, Rosenthal SJ, J. Chem. Educ., 79, 1094 (2002)

[17] Baskoutas S, Terzis AF, J. Appl. Phys., 99, 013708 (2006)

[18] Talapin DV, Shevchenko EV, Kornowski A, Gaponik N, Haase M, Rogach AL, Weller H, Adv. Mater., 13(24), 1868 (2001)

[19] Murray CB, Kagan CR, Bawendi MG, Science, 270(5240), 1335 (1995)

[20] Loef R, Joutepen AJ, Talgorn E, Schoonman J, Goossens A, Nano Lett., 9, 856 (2009)