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Trivalent Eu3+-doped CdS quantum dot (CdS: Eu3+ QD)-sensitized TiO2 nanotube arrays (TNTAs) solar cells are prepared by using the direct adsorption method. The influences of sensitization time, sensitization temperature, and Eu3+ ion concentrations are investigated systematically. The photo-current of the CdS: Eu3+ QDs/TiO2 nanotubes appear at the main absorption region of 320–480nm, and the maximum...
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