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

在本研究方案中，提出了利用氧化锌和二氧化钛的核壳结构来制备高效染料敏化太阳能电池。为了实现高效率，制备了浸渍包覆的二氧化钛纳米棒、丝网印刷二氧化钛的氧化锌纳米棒以及氧化锌纳米棒与二氧化钛的混合物的核壳结构，并对其性能进行了研究。采用湿化学法在导电FTO玻璃上直接合成了氧化锌天然橡胶。将二氧化钛溶胶浸渍在氧化锌天然橡胶上形成核壳结构。此外，采用丝网印刷法在氧化锌表面沉积了二氧化钛壳层。最后，采用丝网印刷的方法在FTO衬底上沉积了纳米粒子和纳米粒子的混合物。制作了该电池，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.