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Improved performance of quantum dots sensitized solar cells: a TiO2-nano-SiO2 hybrid photoanode modified with CdSe

RENBAO WANG1,* , HUI ZHANG1, QIONG MA2, HAIHONG NIU2, JINZHANG XU2

Affiliation

  1. Department ElectronicInformation and Electrical Engineering, Hefei University, Hefei 230601, China
  2. School of Electrical Engineering and A utomationutomation, Hefei University of Technology, Hefei 230009, China

Abstract

A new type of TiO2 nano SiO2 hybrid film was prepared by mixing TiO2 with the nano sized SiO2 powder. The size of CdSe quantum dots (QDs) was about 2.6nm The spin coating method wa was applied to prepare CdSe QDs sens itized the TiO2 nano SiO2 hybrid film for the quantum dots sensitized solar cells QDSSCs application. It is found that the introduction of SiO2 and the capped ligands show notable influence on the photovoltaic performance. The power conversion efficiency of 1.74% was achieved by using the TiO2 nano SiO2 hybrid film modified with MPA MPA-capped CdSe TiO2 nano SiO2/CdSe(MPA)) under the illumination of one sun (AM1.5, 100mW/cm 2.

Keywords

CdSe quantum d ots, TiO2 nano SiO2 hybrid photoanode, Sensitized, Solar cells.

Submitted at: Feb. 3, 2019
Accepted at: Feb. 17, 2020

Citation

RENBAO WANG, HUI ZHANG, QIONG MA, HAIHONG NIU, JINZHANG XU, Improved performance of quantum dots sensitized solar cells: a TiO2-nano-SiO2 hybrid photoanode modified with CdSe, Journal of Optoelectronics and Advanced Materials Vol. 22, Iss. 1-2, pp. 29-36 (2020)