Photovoltaic effect in metal foils and crystals of topological insulators

Kozhemyakin, G. N.; Bendryshev, Ylii Nikolaevich; Churilov, Alexei Vyacheslavovich

doi:10.1039/d2ce00948j

CrystEngComm

2023

DOI: 10.1039/d2ce00948j

|View full text |Cite

Photovoltaic effect in metal foils and crystals of topological insulators

G. N. Kozhemyakin

Ylii Nikolaevich Bendryshev

Alexei Vyacheslavovich Churilov

Abstract: We report that the photovoltaic effect can be produced in metals, semimetals, and semiconductor 3D topological insulators with crystalline and nanostructured states. The behavior of charge carriers in topological insulator...

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi_1−xSb_x)₂Te₃ topological insulator thin films

Chen,

Yu,

Hong

et al. 2023

Photon. Res.

View full text Add to dashboard Cite

Optical helicity provides us with an effective means to control the helicity-dependent photocurrent in the spin-momentum-locked surface states of topological insulators (TIs). Also, the TIs show potential in polarization detection as an intrinsic solid-state optical chirality detector for easier integration and fabrication. However, the complex photoresponses with the circular photogalvanic effect, the linear photogalvanic effect, and the photon drag effect in the TIs prevent them from direct chirality detection of the elliptically polarized light. Here, by fitting with the theoretical models to the measured photocurrents, the microscopic origin of different components of the helicity-dependent photocurrent has been demonstrated. We show a comprehensive study of the helicity-dependent photocurrent in (Bi1−xSb x )2Te3 thin films of different thicknesses as a function of the light incident angle and the gate-tuned chemical potential. The observation of the light incident angle dependence of the helicity-dependent photocurrent provides us with a polarization detection strategy using a TI thin film without the use of any additional optical elements, and the detection accuracy can be enhanced by gate tuning. Additionally, the Stokes parameters can be extracted by arithmetic operation of photocurrents measured with different incident angles and gating voltages for complete characterization of the polarization states of a light beam. Using this means, we realize the polarization detection and the Stokes parameters analysis with a single device. Our work provides an alternative solution to develop miniaturized intrinsic polarization-sensitive photodetectors.

show abstract

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi_1−xSb_x)₂Te₃ topological insulator thin films

Chen,

Yu,

Hong

et al. 2023

Photon. Res.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Photovoltaic effect in metal foils and crystals of topological insulators

Abstract: We report that the photovoltaic effect can be produced in metals, semimetals, and semiconductor 3D topological insulators with crystalline and nanostructured states. The behavior of charge carriers in topological insulator...

Cited by 1 publication

References 60 publications

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi_1−xSb_x)₂Te₃ topological insulator thin films

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi_1−xSb_x)₂Te₃ topological insulator thin films

Contact Info

Product

Resources

About

Photovoltaic effect in metal foils and crystals of topological insulators

Abstract: We report that the photovoltaic effect can be produced in metals, semimetals, and semiconductor 3D topological insulators with crystalline and nanostructured states. The behavior of charge carriers in topological insulator...

Cited by 1 publication

References 60 publications

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi1−xSbx)2Te3 topological insulator thin films

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi1−xSbx)2Te3 topological insulator thin films

Contact Info

Product

Resources

About

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi_1−xSb_x)₂Te₃ topological insulator thin films

Gate voltage control of helicity-dependent photocurrent and polarization detection in (Bi_1−xSb_x)₂Te₃ topological insulator thin films