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温度对作为染料敏化太阳能电池敏化剂的热带植物色素稳定性的影响。

Impacts of temperature on the stability of tropical plant pigments as sensitizers for dye sensitized solar cells.

作者信息

Yusoff Aiman, Kumara N T R N, Lim Andery, Ekanayake Piyasiri, Tennakoon Kushan U

机构信息

Faculty of Science & Institute for Biodiversity & Environmental Research, Universiti Brunei Darussalam, Tungku Link, Gadong, BE1410, Brunei Darussalam.

Applied Physics Program, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam.

出版信息

J Biophys. 2014;2014:739514. doi: 10.1155/2014/739514. Epub 2014 Feb 23.

DOI:10.1155/2014/739514
PMID:24707286
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3953458/
Abstract

Natural dyes have become a viable alternative to expensive organic sensitizers because of their low cost of production, abundance in supply, and eco-friendliness. We evaluated 35 native plants containing anthocyanin pigments as potential sensitizers for DSSCs. Melastoma malabathricum (fruit pulp), Hibiscus rosa-sinensis (flower), and Codiaeum variegatum (leaves) showed the highest absorption peaks. Hence, these were used to determine anthocyanin content and stability based on the impacts of storage temperature. Melastoma malabathricum fruit pulp exhibited the highest anthocyanin content (8.43 mg/L) followed by H. rosa-sinensis and C. variegatum. Significantly greater stability of extracted anthocyanin pigment was shown when all three were stored at 4°C. The highest half-life periods for anthocyanin in M. malabathricum, H. rosa-sinensis, and C. variegatum were 541, 571, and 353 days at 4°C. These were rapidly decreased to 111, 220, and 254 days when stored at 25°C. The photovoltaic efficiency of M. malabathricum was1.16%, while the values for H. rosa-sinensis and C. variegatum were 0.16% and 1.08%, respectively. Hence, M. malabathricum fruit pulp extracts can be further evaluated as an alternative natural sensitizer for DSSCs.

摘要

由于生产成本低、供应充足且环保，天然染料已成为昂贵有机敏化剂的可行替代品。我们评估了35种含有花青素色素的本土植物作为染料敏化太阳能电池（DSSCs）的潜在敏化剂。紫毛野牡丹（果实果肉）、朱槿（花朵）和变叶木（叶子）显示出最高的吸收峰。因此，基于储存温度的影响，使用这些植物来测定花青素含量和稳定性。紫毛野牡丹果实果肉的花青素含量最高（8.43毫克/升），其次是朱槿和变叶木。当这三种植物提取物都储存在4°C时，提取的花青素色素表现出显著更高的稳定性。在4°C下，紫毛野牡丹、朱槿和变叶木中花青素的半衰期最长分别为541天、571天和353天。当储存在25°C时，这些半衰期迅速缩短至111天、220天和254天。紫毛野牡丹的光电效率为1.16%，而朱槿和变叶木的光电效率分别为0.16%和1.08%。因此，紫毛野牡丹果实果肉提取物可作为染料敏化太阳能电池的替代天然敏化剂进行进一步评估。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/ec714b6c298b/JBP2014-739514.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/10cf897a1ee3/JBP2014-739514.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/dd3bd5e49512/JBP2014-739514.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/b6230104b115/JBP2014-739514.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/ec714b6c298b/JBP2014-739514.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/10cf897a1ee3/JBP2014-739514.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/dd3bd5e49512/JBP2014-739514.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/b6230104b115/JBP2014-739514.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3c11/3953458/ec714b6c298b/JBP2014-739514.004.jpg

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