Enhanced the efficiency of carbon based perovskite solar cells via g-C3N4 as functional additives

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-11-09 DOI:10.1016/j.jphotochem.2024.116145

Xiaojie Yang , Xiandong Zhao , Li Zhao , Shimin Wang

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Abstract

The quality of perovskite layer plays an important role in the performance of perovskite solar cells. Various defects can arise during the crystal growth process of Perovskite thin film. However, by using additives. It is possible to effectively enhance crystallize and form high-quality perovskite films with improved morphology. g-C₃N₄, a carbon–nitrogen ring with delocalized π electrons and certain conductivity, facilitates the transport of charge carriers. When it is utilized as an additive in perovskite solar cells, g-C₃N₄ not only improves the quality and crystallinity of perovskite films, but also passivates defects. As a result of these improvements, the optimal efficiency for preparing carbon-based perovskite solar cells is 13.74 %. This represents a significant increase in photoelectric conversion efficiency from 10.39 % to 13.74 %, corresponding to a remarkable enhancement of 32.24 %. These findings provide valuable insights into the potential application of two-dimensional materials and carbon nitrogen ring for enhancing the performance of perovskite solar cells.

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通过 g-C3N4 作为功能添加剂提高碳基过氧化物太阳能电池的效率

过氧化物层的质量对过氧化物太阳能电池的性能起着重要作用。在包光体薄膜的晶体生长过程中，可能会出现各种缺陷。然而，通过使用添加剂g-C3N4 是一种碳氮环，具有π电子分散和一定的导电性，有利于电荷载流子的传输。将 g-C3N4 用作包晶体太阳能电池的添加剂时，它不仅能提高包晶体薄膜的质量和结晶度，还能钝化缺陷。由于这些改进，制备碳基包晶石太阳能电池的最佳效率为 13.74%。这意味着光电转换效率从 10.39% 大幅提高到 13.74%，相当于显著提高了 32.24%。这些发现为二维材料和碳氮环在提高过氧化物太阳能电池性能方面的潜在应用提供了宝贵的见解。

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.