Cu4SnS4 thin films fabricated by sulfurizing thermally evaporated Cu/Sn/Cu metal layers

IF 2.8 3区物理与天体物理 Q2 PHYSICS, CONDENSED MATTER

Physica B-condensed Matter Pub Date : 2025-01-03 DOI:10.1016/j.physb.2024.416876

U. Chalapathi , Y.B. Kishore Kumar , Nandarapu Purushotham Reddy , Salh Alhammadi , Radhalayam Dhanalakshmi , Golkonda Srinivas Reddy , Adel El-marghany , Krithikaa Mohanarangam , Sambasivam Sangaraju , Vasudeva Reddy Minnam Reddy , Si-Hyun Park

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引用次数: 0

Abstract

Cu₄SnS₄ thin films show potential for photovoltaic applications due to their direct bandgap and high absorption coefficient. This study explores a two-step process for fabricating these films through thermal evaporation followed by sulfurization. Cu/Sn/Cu layers are deposited on Mo-coated glass substrates, and then sulfurized in a furnace at 550 °C for 10 to 60 min. Films sulfurized for 10 and 30 min exhibited large grain sizes, a highly crystalline structure, and uniform surface morphology, with bandgaps between 1.05–1.1 eV and electrical resistivity between 0.87 and 0.65

Ω

cm, making them suitable for solar cells. However, sulfurization for 60 min caused a reduction in thickness and pinhole formation due to material loss. This method shows promise for producing high-quality Cu₄SnS₄ films for thin-film solar cells.

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来源期刊

Physica B-condensed Matter 物理-物理：凝聚态物理

CiteScore

4.90

自引率

7.10%

发文量

703

审稿时长

44 days

期刊介绍： Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work. Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas: -Magnetism -Materials physics -Nanostructures and nanomaterials -Optics and optical materials -Quantum materials -Semiconductors -Strongly correlated systems -Superconductivity -Surfaces and interfaces