Photovoltaic Properties of Thin Films Based on a Composite of PbS Quantum Dots and a Fullerene Derivative: A Complex Ester of Butyric Acid

Abstract

A study is made of the effect a surface ligand’s molecules have on the photoconductivity and photovoltaic effect in thin solid layers of structures based on PbS quantum dots. Thin solid layers are prepared of both quantum dots and bulk heterojunctions of a blend of quantum dots and fullerene derivative ([6,6]-phenyl-C(61)butyric acid ester (PCBM)). An exponential dependence of photoconductivity on the length of ligands is obtained for the quantum dot films, and the photovoltaic effect displays a strong dependence on the length of a ligand. In contrast, the effect the length of a ligand has on current–voltage characteristics and charge carrier mobility was not observed in bulk heterojunction structures with quantum dots. Physical reasons for the observed phenomena are discussed.

This is a preview of subscription content, log in to check access.

Fig. 1.
Fig. 2.

REFERENCES

  1. 1

    Zvaigzne, M.A., Aleksandrov, A.E., Samokhvalov, P.S., et al., Tech. Phys. Lett., 2017, vol. 43, no. 10, p. 879.

    ADS  Article  Google Scholar 

  2. 2

    Litvin, A.P., Martynenko, I.V., Purcell-Milton, F., et al., J. Mater. Chem. A, 2017, vol. 5, no. 26, p. 13252.

    Article  Google Scholar 

  3. 3

    Hickey, R.T., Jedlicka, E., Pokuri, B., et al., Org. Electron., 2018, vol. 54, p. 119.

    Article  Google Scholar 

  4. 4

    Yuan, M., Liu, M., and Sargent, E.H., Nat. Energy, 2016, vol. 1, no. 3, p. 16016.

    ADS  Article  Google Scholar 

  5. 5

    Tameev, A.R., Zvaigzne, M.A., Aleksandrov, A.E., et al., Proc. SPIE, 2018, vol. 10814, 1081406.

    Google Scholar 

  6. 6

    Armin, A., Juška, G., Ullah, M., et al., Adv. Energy Mater., 2014, vol. 4, 1300954.

    Article  Google Scholar 

  7. 7

    Tameev, A.R., Yusupov, A.R., Vannikov, A.V., et al., Prot. Met. Phys. Chem. Surf., 2018, vol. 54, p. 1076.

    Article  Google Scholar 

  8. 8

    Malov, V.V., Ghosh, T., Nair, C., et al., Mendeleev Commun., 2019, vol. 29, p. 218.

    Article  Google Scholar 

  9. 9

    Stephen, M., Genevicius, K., Juška, G., et al., Polym. Int., 2017, vol. 66, p. 13.

    Article  Google Scholar 

  10. 10

    Kozlov, M.I., Aslandukov, A.N., Vashchenko, A.A., et al., Dalton Trans., 2019, vol. 48, p. 17298.

    Article  Google Scholar 

  11. 11

    Williams, M., Tummala, N.R., Aziz, S.G., et al., J. Phys. Chem. Lett., 2014, vol. 5, no. 19, p. 3427.

    Article  Google Scholar 

Download references

Funding

Our preparation of the films and determination of their characteristics based on quantum dots were supported by the Russian Foundation for Basic Research, project no. 16‑29-09623. Our measurements of charge carrier mobility were supported by the Russian Foundation for Basic Research, project no. 19-33-90283.

Author information

Affiliations

Authors

Corresponding author

Correspondence to A. E. Aleksandrov.

Ethics declarations

The authors declare they have no conflicts of interest.

Additional information

Translated by P. Vlasov

About this article

Verify currency and authenticity via CrossMark

Cite this article

Aleksandrov, A.E., Zvaigzne, M.A., Tameev, A.R. et al. Photovoltaic Properties of Thin Films Based on a Composite of PbS Quantum Dots and a Fullerene Derivative: A Complex Ester of Butyric Acid. Bull. Russ. Acad. Sci. Phys. 84, 505–507 (2020). https://doi.org/10.3103/S1062873820050044

Download citation