New naphthalenediimides as potential dyes for TiO2-sensitized solar cells

IF 3.6 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials for Renewable and Sustainable Energy Pub Date : 2021-01-28 DOI:10.1007/s40243-021-00190-0

Christian L. Castro-Riquelme, Adrián Ochoa-Terán, J. C. Calva-Yáñez, E. A. Reynoso-Soto, R. M. Félix-Navarro

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Abstract

In this work new naphthalenediimides (NDIs) were synthesized and used as dyes in DSSC. The efficiency (η) of the DSSC is influenced by NDIs electronic and structural characteristics. It was found a better cell performance with the NDIs which have a broader absorption band shifted to the red color, high ? values, and more adsorption in the anode surface. The band gaps were determinate by UV–vis and cyclic voltammetry. The LUMO orbitals of most of the NDIs are above of the conduction band (CB) energy for TiO₂ allowing the electron transfer process from the NDI to the photoanode, especially in those with a significant LUMO^NDI-CB^Ti energetic difference. Also, NDIs with polar groups in their structure presented higher η values due to a better adsorption on the photoanode surface, which allows a better energy capture compared with those with lower adsorption.

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新型萘二亚胺作为tio2敏化太阳能电池的潜在染料

本文合成了新型萘二亚胺并将其作为DSSC染料。DSSC的效率(η)受NDIs的电子特性和结构特性的影响。研究发现，具有较宽吸收带的ndi具有较好的电池性能，其吸收带移至红色，高?值，且在阳极表面吸附较多。带隙用紫外可见法和循环伏安法测定。大多数NDI的LUMO轨道都高于TiO2的传导带(CB)能量，使得电子从NDI转移到光阳极，特别是那些LUMONDI-CBTi能量差异显著的NDI。此外，结构中含有极性基团的ndi由于在光阳极表面有更好的吸附而具有更高的η值，与低吸附的ndi相比，具有更好的能量捕获能力。

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来源期刊

Materials for Renewable and Sustainable Energy MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

7.90

自引率

2.20%

发文量

审稿时长

13 weeks

期刊介绍： Energy is the single most valuable resource for human activity and the basis for all human progress. Materials play a key role in enabling technologies that can offer promising solutions to achieve renewable and sustainable energy pathways for the future. Materials for Renewable and Sustainable Energy has been established to be the world''s foremost interdisciplinary forum for publication of research on all aspects of the study of materials for the deployment of renewable and sustainable energy technologies. The journal covers experimental and theoretical aspects of materials and prototype devices for sustainable energy conversion, storage, and saving, together with materials needed for renewable fuel production. It publishes reviews, original research articles, rapid communications, and perspectives. All manuscripts are peer-reviewed for scientific quality. Topics include: 1. MATERIALS for renewable energy storage and conversion: Batteries, Supercapacitors, Fuel cells, Hydrogen storage, and Photovoltaics and solar cells. 2. MATERIALS for renewable and sustainable fuel production: Hydrogen production and fuel generation from renewables (catalysis), Solar-driven reactions to hydrogen and fuels from renewables (photocatalysis), Biofuels, and Carbon dioxide sequestration and conversion. 3. MATERIALS for energy saving: Thermoelectrics, Novel illumination sources for efficient lighting, and Energy saving in buildings. 4. MATERIALS modeling and theoretical aspects. 5. Advanced characterization techniques of MATERIALS Materials for Renewable and Sustainable Energy is committed to upholding the integrity of the scientific record. As a member of the Committee on Publication Ethics (COPE) the journal will follow the COPE guidelines on how to deal with potential acts of misconduct. Authors should refrain from misrepresenting research results which could damage the trust in the journal and ultimately the entire scientific endeavor. Maintaining integrity of the research and its presentation can be achieved by following the rules of good scientific practice as detailed here: https://www.springer.com/us/editorial-policies