How do I confirm a heterojunction is formed between the semiconductor oxide nanoparticles?

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Ahmadreza Afraz

UV-vis spectroscopy

Satyabrata Mohapatra

You should analyze using HRTEM. XPS will give you supporting evidence.

Pradeep kumar L N V Dammala

thank you for your answers

Wanfeng Xie

In my opinion, you can do AES to analysis the element of the particles.

Sayan Dey

Try out I-V measurement. You should find some non-linearity (non-ohmic nature) being established due to the formation of heterojunction.