Formation of poly-crystalline BaSi2 thin films by pulsed laser deposition for solar cell applications

被引：6

作者：

Du, Rui ^{[1
]}

Yang, Kaiwen ^{[1
]}

Gao, Xudan ^{[1
]}

Shi, Wangzhou ^{[1
]}

Du, Weijie ^{[1
]}

Zhang, Yiwen ^{[1
]}

Suemasu, Takashi ^{[2
]}

机构：

[1] Shanghai Normal Univ, Key Lab Optoelect Mat & Device, Shanghai 200234, Peoples R China

[2] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

来源：

MATERIALS LETTERS | 2020年 / 260卷

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

BaSi2; Solar energy materials; Thin films; Pulsed laser deposition;

D O I：

10.1016/j.matlet.2019.126936

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new growth method for BaSi2 thin films by using pulsed laser deposition (PLD) on transparent SiO2 and CaF2 substrates has been developed. X-ray diffraction and Raman spectroscopy revealed the poly-crystalline property of the deposited films. By introducing a thin Si buffer layer on the SiO2 substrate, the crystalline quality of BaSi2 thin films were improved. BaSi2 thin films exhibited a Ba/Si ratio very close to 0.5, indicating the good stoichiometry control of PLD growth. The absorption coefficient of the poly-BaSi2 thin film reached 10(5) cm(-1) and its band gap was deduced to be 1.32 eV, which are similar to those grown by molecular beam epitaxy or sputtering. A maximum photoresponsivity of 12.5 mA/W was achieved in the BaSi2 thin film, which implies the potential of PLD-deposited BaSi2 for thin film solar cell applications. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：3

共 18 条

[11] Review of recent progress in chemical stability of perovskite solar cells [J].

Niu, Guangda ;

Guo, Xudong ;

Wang, Liduo .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (17) :8970-8980

[12] Structural, optical and morphological properties of post-growth calcined TiO2 nanopowder for opto-electronic device application: Ex-situ studies [J].

Sathyaseelan, B. ;

Manikandan, E. ;

Lakshmanan, V. ;

Baskaran, I. ;

Sivakumar, K. ;

Ladchumananandasivam, Rasiah ;

Kennedy, J. ;

Maaza, M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 671 :486-492

[13] Detection of local vibrational modes induced by intrinsic defects in undoped BaSi2 light absorber layers using Raman spectroscopy [J].

Sato, Takuma ;

Hoshida, Hirofumi ;

Takabe, Ryota ;

Toko, Kaoru ;

Terai, Yoshikazu ;

Suemasu, Takashi .

JOURNAL OF APPLIED PHYSICS, 2018, 124 (02)

[14] Exploring the potential of semiconducting BaSi2 for thin-film solar cell applications [J].

Suemasu, Takashi ;

Usami, Noritaka .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2017, 50 (02) :1-18

[15] Fabrication of BaSi2 films on transparent CaF2(111) substrates by molecular beam epitaxy for optical characterization [J].

Toh, K. ;

Saito, T. ;

Khan, M. Ajmal ;

Okada, A. ;

Usami, N. ;

Suemasu, T. .

ASIA-PACIFIC CONFERENCE ON SEMICONDUCTING SILICIDES SCIENCE AND TECHNOLOGY TOWARDS SUSTAINABLE OPTOELECTRONICS (APAC-SILICIDE 2010), 2011, 11 :189-192

[16] Optical Absorption Properties of BaSi2 Epitaxial Films Grown on a Transparent Silicon-on-Insulator Substrate Using Molecular Beam Epitaxy [J].

Toh, Katsuaki ;

Saito, Takanobu ;

Suemasu, Takashi .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2011, 50 (06)

[17] Nanocauliflower like structure of CdS thin film for solar cell photovoltaic applications: In situ tin doping by chemical bath deposition technique [J].

Wilson, K. C. ;

Manikandan, E. ;

Ahamed, M. Basheer ;

Mwakikunga, B. W. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 585 :555-560

[18] Formation of polycrystalline BaSi2 films by radio-frequency magnetron sputtering for thin-film solar cell applications [J].

Yoneyama, Takahiro ;

Okada, Atsushi ;

Suzuno, Mitsushi ;

Shibutami, Tetsuo ;

Matsumaru, Keitaro ;

Saito, Noriyuki ;

Yoshizawa, Noriko ;

Toko, Kaoru ;

Suemasu, Takashi .

THIN SOLID FILMS, 2013, 534 :116-119

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