Bulk Photovoltaic Effect in Single Ferroelectric Domain of SnS Crystal and Control of Local Polarization by Strain

Author:

Nanae Ryo1,Kitamura Satsuki1,Chang Yih‐Ren2,Kanahashi Kaito1,Nishimura Tomonori1,Moqbel Redhwan3,Lin Kung‐Hsuan3,Maruyama Mina4,Gao Yanlin4,Okada Susumu4,Qi Kai5,Fu Jui‐Han5,Tung Vincent5,Taniguchi Takashi6,Watanabe Kenji7,Nagashio Kosuke1ORCID

Affiliation:

1. Department of Materials Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo Tokyo 113‐8656 Japan

2. Nanoscale Quantum Photonics Laboratory RIKEN Cluster for Pioneering Research 2‐1 Hirosawa Wako Saitama 351‐0198 Japan

3. Institute of Physics Academia Sinica No. 128, Sec. 2, Academia Rd. Nangang Dist. Taipei 115201 Taiwan

4. Department of Physics University of Tsukuba 1‐1‐1 Tennodai Tsukuba Ibaraki 305‐8571 Japan

5. Department of Chemical System Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo Tokyo 113‐8656 Japan

6. Research Center for Materials Nanoarchitectonics National Institute of Materials Science 1‐1 Namiki Tsukuba Ibaraki 305‐0044 Japan

7. Research Center for Electronic and Optical Materials National Institute of Materials Science 1‐1 Namiki Tsukuba Ibaraki 305‐0044 Japan

Abstract

AbstractThe bulk photovoltaic effect (BPVE) in ferroelectrics, wherein spontaneous polarization can be reversed within crystals lacking centrosymmetry, encompasses the significant contribution of ferroelectric domain walls (DWs), known as DW‐PVE. Nevertheless, the separation between intrinsic BPVE within the domain and DW‐PVE remains unexplored in 2D ferroelectrics, notwithstanding its significant importance. In this study, sizable crystals of 2D ferroelectric SnS are successfully grown, facilitating a comprehensive yet intricate examination of domain configurations utilizing polarized optical microscopy and piezoresponse force microscopy. By properly selecting the large ferroelectric single domain within SnS crystals, uniform intrinsic BPVE across the domain is unequivocally demonstrated. Furthermore, to further enhance intrinsic BPVE, manipulation of strain poling increased photocurrent, suggesting that locally distributed polarizations due to imperfection introduced in SnS crystals are aligned by strain. These results will offer a new avenue for rigorous comprehension of DW‐PVE in 2D ferroelectrics.

Funder

National Institute of Information and Communications Technology

National Science and Technology Council

Publisher

Wiley

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3