PDF(Pubmed)
Abstract：
The sensitizer is one of the most essential dye-sensitized solar cell (DSSC) components. In the present research, a Zn-astaxanthin complex was investigated as a sensitizer, compared to pure astaxanthin. The complex with a 1:1 mole ratio between astaxanthin and Zn2+ was synthesized in a reflux reactor at 37-60 °C. The product was analyzed using Proton Nuclear Resonance (1H-NMR), which indicates the presence of chelate formation between Zn2+ with two atoms of oxygen on the terminal cyclohexane ring of astaxanthin. The interaction of sensitizers (astaxanthin and Zn-astaxanthin) on the photoelectrode surface in this study was analyzed using a Fourier Transform Infra-Red (FTIR) and Ultraviolet-Visible Diffuse Reflectance Spectroscopy (UV-Vis DRS). The FTIR spectra of photoelectrode immersed in Zn-astaxanthin show peaks of C=O stretching and vibration -OH group at 1730 and 1273 cm-1, respectively, and H-C-H stretching vibration with high intensity in 2939, 2923, and 2853 cm-1. The UV-Vis DRS analysis shows the band gap of photoelectrode (PE), photoelectrode immersed in astaxanthin (PE/astaxanthin), and Zn-astaxanthin (PE/Zn-astaxanthin) are 3.19, 1.65, and 1.59 eV, respectively. Under illumination intensity of 300 W/m2, the maximum energy conversion efficiency of DSSC with Zn-astaxanthin as sensitizer is (0.03 ± 0.0022)%, higher than DSSC with astaxanthin as sensitizer ((0.12 ± 0.0052)%). Up to 70 h of illumination, DSSC with Zn-astaxanthin as a sensitizer also has better stability than astaxanthin-based DSSC.
摘要：
敏化剂是最重要的染料敏化太阳能电池（DSSC）组件之一。在目前的研究中,研究了一种锌-虾青素配合物作为敏化剂，与纯虾青素相比。在37-60°C的回流反应器中合成虾青素和Zn2+摩尔比为1:1的络合物。使用质子核磁共振(1H-NMR)分析产物,这表明在虾青素的末端环己烷环上，Zn2与两个氧原子之间存在螯合物。使用傅立叶变换红外光谱（FTIR）和紫外可见漫反射光谱（UV-VisDRS）分析了本研究中敏化剂（虾青素和Zn-虾青素）在光电极表面的相互作用。浸入Zn-虾青素中的光电极的FTIR光谱分别在1730和1273cm-1处显示C=O拉伸和振动-OH基团的峰，在2939、2923和2853cm-1中具有高强度的H-C-H拉伸振动。UV-VisDRS分析显示光电极（PE）的带隙，光电极浸入虾青素（PE/虾青素），Zn-虾青素(PE/Zn-虾青素)分别为3.19、1.65和1.59eV，分别。在300W/m2的光照强度下，以Zn-虾青素为敏化剂的DSSC的最大能量转换效率为（0.03±0.0022）％，高于以虾青素为敏化剂的DSSC（（0.12±0.0052）％）。长达70小时的照明，以Zn-虾青素为敏化剂的DSSC也比基于虾青素的DSSC具有更好的稳定性。
