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Post-annealing Effect on Optical and Electronic Properties of Thermally Evaporated MoOX Thin Films as Hole-Selective Contacts for p-Si Solar Cells.

ABSTRACT: Owing to its large work function, MoOX has been widely used for hole-selective contact in both thin film and crystalline silicon solar cells. In this work, thermally evaporated MoOX films are employed on the rear sides of p-type crystalline silicon (p-Si) solar cells, where the optical and electronic properties of the MoOX films as well as the corresponding device performances are investigated as a function of post-annealing treatment. The MoOX film annealed at 100 °C shows the highest work function and proves the best hole selectivity based on the results of energy band simulation and contact resistivity measurements. The full rear p-Si/MoOX/Ag-contacted solar cells demonstrate the best performance with an efficiency of 19.19%, which is the result of the combined influence of MoOX's hole selectivity and passivation ability.

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC8134614 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Post-annealing Effect on Optical and Electronic Properties of Thermally Evaporated MoO<sub>X</sub> Thin Films as Hole-Selective Contacts for p-Si Solar Cells.

Jiang Yuanwei Y   Cao Shuangying S   Lu Linfeng L   Du Guanlin G   Lin Yinyue Y   Wang Jilei J   Yang Liyou L   Zhu Wenqing W   Li Dongdong D  

Nanoscale research letters 20210519 1

Owing to its large work function, MoO<sub>X</sub> has been widely used for hole-selective contact in both thin film and crystalline silicon solar cells. In this work, thermally evaporated MoO<sub>X</sub> films are employed on the rear sides of p-type crystalline silicon (p-Si) solar cells, where the optical and electronic properties of the MoO<sub>X</sub> films as well as the corresponding device performances are investigated as a function of post-annealing treatment. The MoO<sub>X</sub> film an  ...[more]

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