DOI: 10.1002/adom.201400202. Room Temperature Electroluminescence from Mechanically Formed van der Waals III

Room Temperature Electroluminescence from Mechanically Formed van der Waals III–VI Homojunctions and Heterojunctions

10.1002/adom.201400202

Crossref journal-article

Wiley

Advanced Optical Materials (311)

Abstract

Room temperature electroluminescence from semiconductor junctions is demonstrated. The junctions are fabricated by the exfoliation and direct mechanical adhesion of InSe and GaSe van der Waals layered crystals. Homojunction diodes formed from layers of p‐ and n‐type InSe exhibit electroluminescence at energies close to the bandgap energy of InSe (Eg = 1.26 eV). In contrast, heterojunction diodes formed by combining layers of p‐type GaSe and n‐type InSe emit photons at lower energies, which is attributed to the generation of spatially indirect excitons and a staggered valence band lineup for the holes at the GaSe/InSe interface. These results demonstrate the technological potential of mechanically formed heterojunctions and homojunctions of direct‐bandgap layered GaSe and InSe compounds with an optical response over an extended wavelength range, from the near‐infrared to the visible spectrum.

Bibliography

Balakrishnan, N., Kudrynskyi, Z. R., Fay, M. W., Mudd, G. W., Svatek, S. A., Makarovsky, O., Kovalyuk, Z. D., Eaves, L., Beton, P. H., & PatanÃ¨, A. (2014). Room Temperature Electroluminescence from Mechanically Formed van der Waals IIIâVI Homojunctions and Heterojunctions. Advanced Optical Materials, 2(11), 1064â1069. Portico.

Authors 10

Nilanthy Balakrishnan (first)
Zakhar R. Kudrynskyi (additional)
Michael W. Fay (additional)
Garry W. Mudd (additional)
Simon A. Svatek (additional)
Oleg Makarovsky (additional)
Zakhar D. Kovalyuk (additional)
Laurence Eaves (additional)
Peter H. Beton (additional)
Amalia Patanè (additional)

References 25 Referenced 77

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Dates

Type	When
Created	11 years ago (Aug. 20, 2014, 12:47 p.m.)
Deposited	1 year, 10 months ago (Oct. 27, 2023, 11:55 p.m.)
Indexed	3 months, 3 weeks ago (May 13, 2025, 5:05 a.m.)
Issued	11 years ago (Aug. 20, 2014)
Published	11 years ago (Aug. 20, 2014)
Published Online	11 years ago (Aug. 20, 2014)
Published Print	10 years, 10 months ago (Nov. 1, 2014)

Funders 0

None

BibTeX

@article{Balakrishnan_2014, title={Room Temperature Electroluminescence from Mechanically Formed van der Waals III–VI Homojunctions and Heterojunctions}, volume={2}, ISSN={2195-1071}, url={http://dx.doi.org/10.1002/adom.201400202}, DOI={10.1002/adom.201400202}, number={11}, journal={Advanced Optical Materials}, publisher={Wiley}, author={Balakrishnan, Nilanthy and Kudrynskyi, Zakhar R. and Fay, Michael W. and Mudd, Garry W. and Svatek, Simon A. and Makarovsky, Oleg and Kovalyuk, Zakhar D. and Eaves, Laurence and Beton, Peter H. and Patanè, Amalia}, year={2014}, month=aug, pages={1064–1069} }

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