当前位置: X-MOL 学术Opt. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Comparison of the effects of different ionic liquid-gels on the efficiencies of the PbSe, PbS and PbTe quantum dot sensitized solar cells
Optical Materials ( IF 3.8 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.optmat.2020.110603
S. Birdoğan , M. Karabulut

Abstract The semiconductor nanocrystal quantum dots (QD) are used in the third generation solar cells due to their high photon conversion efficiency. In this study, we investigated the effects of ionic liquid on the efficiency of lead chalcogenide (PbSe, PbTe and PbS) QD solar cells. To achieve this, we looked at the interaction between the alkyl groups (R = CH3) and the thiol bonds (SH) of the selected organic electrolytes. Two different classes of liquids were prepared based on organic (960 and SB) and inorganic (AY1-3) ionic liquid (IL) where AY1-3 liquid include LiI, NaI, I2 materials; 960 and SB type liquids include BMII, tBP and GuNCS materials. These liquids provide redox reactions. 5 different ILs were applied to each of the 3 types of QDs and 15 solar cells were produced. Particle sizes and solar cell parameters like fill factor and efficiencies were determined through optical absorption, photoluminescence, TEM, SEM, EDS and J-V measurements. It was observed that the interaction of these groups affected the fill factor (FF), open circuit voltage (Voc) and efficiency of PbX (X = Se, S, Te) QD solar cells. The AY1 was found to be compatible with the PbX QDSSCs when used alone while the AY2 was not. LiI was an effective IL when used alone which resulted in with an efficiency of 7.853 for PbS QDSSC. NaI and GuSCN introduced different pairs of redox to the system, increasing the efficiency of PbSe solar cells to 8.257.

中文翻译:

不同离子液体凝胶对 PbSe、PbS 和 PbTe 量子点敏化太阳能电池效率影响的比较

摘要 半导体纳米晶量子点(QD)由于其高光子转换效率而被用于第三代太阳能电池。在这项研究中,我们研究了离子液体对硫属元素化铅(PbSe、PbTe 和 PbS)QD 太阳能电池效率的影响。为了实现这一点,我们研究了所选有机电解质的烷基 (R = CH3) 和硫醇键 (SH) 之间的相互作用。基于有机(960和SB)和无机(AY1-3)离子液体(IL)制备了两类不同的液体,其中AY1-3液体包括LiI、NaI、I2材料;960和SB型液体包括BMII、tBP和GuNCS材料。这些液体提供氧化还原反应。将 5 种不同的 IL 应用于 3 种类型的 QD 中的每一种,并生产了 15 个太阳能电池。通过光吸收、光致发光、TEM、SEM、EDS 和 JV 测量确定粒径和太阳能电池参数,如填充因子和效率。据观察,这些基团的相互作用影响了 PbX (X = Se, S, Te) QD 太阳能电池的填充因子 (FF)、开路电压 (Voc) 和效率。发现 AY1 在单独使用时与 PbX QDSSC 兼容,而 AY2 则不兼容。当单独使用时,LiI 是一种有效的 IL,导致 PbS QDSSC 的效率为 7.853。NaI 和 GuSCN 向系统中引入了不同的氧化还原对,将 PbSe 太阳能电池的效率提高到 8.257。PbX (X = Se, S, Te) QD 太阳能电池的开路电压 (Voc) 和效率。发现 AY1 在单独使用时与 PbX QDSSC 兼容,而 AY2 则不兼容。当单独使用时,LiI 是一种有效的 IL,导致 PbS QDSSC 的效率为 7.853。NaI 和 GuSCN 向系统中引入了不同的氧化还原对,将 PbSe 太阳能电池的效率提高到 8.257。PbX (X = Se, S, Te) QD 太阳能电池的开路电压 (Voc) 和效率。发现 AY1 在单独使用时与 PbX QDSSC 兼容,而 AY2 则不兼容。当单独使用时,LiI 是一种有效的 IL,导致 PbS QDSSC 的效率为 7.853。NaI 和 GuSCN 向系统中引入了不同的氧化还原对,将 PbSe 太阳能电池的效率提高到 8.257。
更新日期:2021-01-01
down
wechat
bug