Effect of uniaxial-strain on Ge p-i-n photodiodes integrated on Si

Hyun-Yong Yu, Donghyun Kim, Shen Ren, Masaharu Kobayashi, David A B Miller, Yoshio Nishi, Krishna C. Saraswat

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We demonstrate the effect of uniaxial tensile and compressive strain in Ge p-i-n photodiode integrated on Si using four-point bending structures. Responsivity at 1550 nm is increased from 0.67 to 0.75 A/W by tensile strain in the 〈 110 〉 direction while for compressive strain it decreases from 0.67 to 0.477 A/W. These uniaxial tensile and compressive strains also effectively result in shifts of the absorption spectra toward longer and shorter wavelength as they reduce or increase the direct bandgap energy of the Ge layer, respectively.

Original languageEnglish
Article number161106
JournalApplied Physics Letters
Volume95
Issue number16
DOIs
Publication statusPublished - 2009 Nov 2
Externally publishedYes

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axial strain
photodiodes
absorption spectra
shift
wavelengths
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Yu, H-Y., Kim, D., Ren, S., Kobayashi, M., Miller, D. A. B., Nishi, Y., & Saraswat, K. C. (2009). Effect of uniaxial-strain on Ge p-i-n photodiodes integrated on Si. Applied Physics Letters, 95(16), [161106]. https://doi.org/10.1063/1.3254181

Effect of uniaxial-strain on Ge p-i-n photodiodes integrated on Si. / Yu, Hyun-Yong; Kim, Donghyun; Ren, Shen; Kobayashi, Masaharu; Miller, David A B; Nishi, Yoshio; Saraswat, Krishna C.

In: Applied Physics Letters, Vol. 95, No. 16, 161106, 02.11.2009.

Research output: Contribution to journalArticle

Yu, H-Y, Kim, D, Ren, S, Kobayashi, M, Miller, DAB, Nishi, Y & Saraswat, KC 2009, 'Effect of uniaxial-strain on Ge p-i-n photodiodes integrated on Si', Applied Physics Letters, vol. 95, no. 16, 161106. https://doi.org/10.1063/1.3254181
Yu H-Y, Kim D, Ren S, Kobayashi M, Miller DAB, Nishi Y et al. Effect of uniaxial-strain on Ge p-i-n photodiodes integrated on Si. Applied Physics Letters. 2009 Nov 2;95(16). 161106. https://doi.org/10.1063/1.3254181
Yu, Hyun-Yong ; Kim, Donghyun ; Ren, Shen ; Kobayashi, Masaharu ; Miller, David A B ; Nishi, Yoshio ; Saraswat, Krishna C. / Effect of uniaxial-strain on Ge p-i-n photodiodes integrated on Si. In: Applied Physics Letters. 2009 ; Vol. 95, No. 16.
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