通过掺杂金属离子提高染料敏化二氧化钛太阳能电池（DSSC）的效率。

Enhanced efficiency of dye-sensitized TiO2 solar cells (DSSC) by doping of metal ions.

作者信息

Ko Kyung Hyun, Lee Young Cheol, Jung Young Jin

机构信息

Department of Materials Science and Engineering, Ajou University, Suwon 442-749, South Korea.

出版信息

J Colloid Interface Sci. 2005 Mar 15;283(2):482-7. doi: 10.1016/j.jcis.2004.09.009.

DOI:10.1016/j.jcis.2004.09.009

PMID:15721923

Abstract

Doped TiO(2) semiconductor powders were synthesized using Al and W as photovoltaic property-enhancing impurities. Al-doped TiO(2) electrodes increased open-circuit voltage (V(oc)), but reduced short-circuit current (I(sc)). In contrast, W-doped TiO(2) had an opposite effect. However, dye-sensitized solar cell efficiency fabricated with doped TiO(2) was remarkably better than that of undoped TiO(2). It seems that these phenomena were related to electrical surface-state modifications induced by metal-ion dopants. These modifications led to significant changes in powder aggregation, charge transfer kinetics, and dye adsorption characteristics. The highest efficiency was found by using (Al+W)-doped TiO(2) nanopowders.

摘要

使用铝（Al）和钨（W）作为增强光伏性能的杂质合成了掺杂二氧化钛（TiO₂）半导体粉末。铝掺杂的TiO₂电极增加了开路电压（V(oc)），但降低了短路电流（I(sc)）。相比之下，钨掺杂的TiO₂则有相反的效果。然而，用掺杂TiO₂制造的染料敏化太阳能电池效率明显优于未掺杂的TiO₂。这些现象似乎与金属离子掺杂剂引起的表面电态变化有关。这些变化导致粉末聚集、电荷转移动力学和染料吸附特性发生显著变化。使用（Al+W）掺杂的TiO₂纳米粉末时效率最高。