Fabrication of dye sensitized solar cells based on core shell structures of ZnO and TiO_2

在本研究计划中，提出了ZnO和TiO_2的核壳结构来制造高效的染料敏化太阳能电池（DSSC）。为了实现高效的DSSC性能，制备了浸涂TiO_2颗粒的ZnO纳米棒（NR）、丝网印刷TiO_2颗粒的ZnO NR以及ZnO小NR与TiO_2颗粒的混合物的核壳结构，并对其DSSC性能进行了研究。采用湿化学法在导电FTO玻璃上直接合成ZnO NR。通过在ZnO NR上浸渍TiO_2溶胶形成核壳结构，并通过丝网印刷将TiO_2颗粒浆料沉积在ZnO上。最后，通过丝网印刷将ZnO小NR和TiO_2纳米颗粒的混合物沉积在FTO衬底上。制备了DSSC电池，并对其性能进行了研究。

In the present research proposal, the core shell structures of ZnO and TiO_2 were proposed to fabricate high efficient dye sensitized solar cells (DSSC). In order to achieve the high efficiency, the core shell structures of ZnO nanorods(NR) with dip coated TiO_2 particles, ZnO NR with screen printed TiO_2 particles and the mixture of ZnO small NR and TiO_2 particles have been fabricated and studied for DSSC performance. The ZnO NR was directly synthesized on conducting FTO glass by a wet chemical method. The core shell structure was formed by dip coating a TiO_2 sol on ZnO NR. Moreover, the TiO_2 shell layer was deposited on ZnO by screen printing of the TiO_2 particles paste. Finally, the mixture of ZnO small NR and TiO_2 nanoparticles were deposited on FTO substrate by screen printing. The DSSC cell was fabricated and studied for the performance.