通过堆叠铁氧体铋和二氧化钛薄膜的界面导电性增强铁电光伏技术

IF 2.8 3区化学 Q3 CHEMISTRY, PHYSICAL Chemical Physics Letters Pub Date : 2024-11-10 DOI:10.1016/j.cplett.2024.141751

Kun Yao Liang , Ye Feng Wang , Ke Zhen Hui , Jing Hui Zeng

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引用次数: 0

摘要

通过将铁氧体铋（BFO）薄膜与沉积在氧化氟锡（FTO）基板上的二氧化钛（TiO2）薄膜直接堆叠，组装出了铁电光伏器件。所获得的短电流密度提高到 4.06 mA/cm2。导电原子力显微镜（CAFM）证实，在 BFO 薄膜上涂覆二氧化钛后，收集电流增加了一个数量级，这主要是二氧化钛和 BFO 颗粒之间的界面造成的。得益于薄膜导电性能的增强，铁电光伏技术产生了 1.66 V 的开路电压（VOC）和 4.18 % 的功率转换效率（PCE）。

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Enhanced ferroelectric photovoltaics by interfacial conductivity by stacking of bismuth ferrite and titanium dioxide thin films

Ferroelectric photovoltaic devices were assembled by direct stacking of bismuth ferrite (BFO) thin film with titanium dioxide (TiO₂) thin film deposited on fluorine tin oxide (FTO) substrates. An enhanced short-current density of 4.06 mA/cm² was received. The conductive atomic force microscopy (CAFM) confirms one order of magnitude increase on the collecting currents after coating of TiO₂ on BFO thin film, majorly contributing from the interfaces among TiO₂ and BFO particles. The ferroelectric photovoltaics generate an open-circuit voltage (V_OC) of 1.66 V and a power conversion efficiency (PCE) of 4.18 %, benefiting from the enhanced conductivity of the thin film.

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来源期刊

Chemical Physics Letters 化学-物理：原子、分子和化学物理

CiteScore

5.70

自引率

3.60%

发文量

798

审稿时长

33 days

期刊介绍： Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.