Abstract

Nanoparticle-based ink printing may offer excellent manufacturing scalability at very low cost relative to conventional approaches. In the present study, we prepared CZTS thin film by screen printing using CZTSe nanoparticle ink. Replacing the counter electrode of quantum dot sensitized solar cell (QDSSC) with CZTS photocathode, we demonstrate a novel tandem solar cell with enhanced photoelectrochemical performances. The enhancement can be attributed to the secondary photon absorption by CZTS photocathode.

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