Transparent conducting oxides (TCO), such as indium tin oxide (ITO), fluorine doped tin oxide (FTO), and Al doped zinc oxide (ZnO), have been used as transparent electrodes in CdTe/CdS thin film solar cells. The merits of different TCOs and the properties of the CdTe/CdS solar cells in superstrate configuration have been investigated. The average transmission of CdS/FTO is 80% while CdS/ZnO window layers have a lower transmission of 40 to 60%. Effects of CdCl2 treatment on the recrystallization of CdTe have been studied with XRD and SEM. A large increase in the grain size along with the loss of the (111) preferred orientation are measured. Recrystallization is similar on ZnO and FTO but different on ITO. The performance of solar cells on different TCOs depends on the amount (thickness) of CdCl2. For higher efficiencies, more CdCl2 is required for CdTe/CdS/FTO in comparison to CdTe/CdS/ITO.

Influence of Transparent Conducting Oxides on the Properties of CdTe/CdS Solar Cells

ROMEO, Alessandro;
1998

Abstract

Transparent conducting oxides (TCO), such as indium tin oxide (ITO), fluorine doped tin oxide (FTO), and Al doped zinc oxide (ZnO), have been used as transparent electrodes in CdTe/CdS thin film solar cells. The merits of different TCOs and the properties of the CdTe/CdS solar cells in superstrate configuration have been investigated. The average transmission of CdS/FTO is 80% while CdS/ZnO window layers have a lower transmission of 40 to 60%. Effects of CdCl2 treatment on the recrystallization of CdTe have been studied with XRD and SEM. A large increase in the grain size along with the loss of the (111) preferred orientation are measured. Recrystallization is similar on ZnO and FTO but different on ITO. The performance of solar cells on different TCOs depends on the amount (thickness) of CdCl2. For higher efficiencies, more CdCl2 is required for CdTe/CdS/FTO in comparison to CdTe/CdS/ITO.
9282851796
9781901675023
thin films; PVD; CdTe; solar cells; TCO
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11562/20734
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact