Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.


Selenium lowers bulk recombination

Selenium alloying has enabled record efficiency for CdTe solar cells by changing the optoelectronic properties of the CdTe absorber layer, though its role has not yet been fully understood. Now, non-radiative charge-carrier recombination in the bulk of the CdSeTe layer is revealed to be lower in grains with higher Se concentration.

Your institute does not have access to this article

Access options

Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Fig. 1: Device structure and recombination process.


  1. MacDonald, B. I. et al. ACS Nano 6, 7 (2012).

    Google Scholar 

  2. Munshi, A. H. et al. IEEE J. Photovolt. 8, 310–314 (2018).

    Article  Google Scholar 

  3. Sankin, I. & Krasikov, D. Phys. Stat. Sol. A 1800887 (2019).

  4. Fiducia, T. A. M. et al. Nat. Energy (2019).

  5. Shi., L. et al. Phys. Rev. B 91, 205315 (2015).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to Dmitry Krasikov.

Ethics declarations

Competing interests

D.K. is the development engineer in the advanced research division at First Solar, Inc., which is a PV manufacturer and a utility-scale PV power-plants provider.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Krasikov, D. Selenium lowers bulk recombination. Nat Energy 4, 442–443 (2019).

Download citation

  • Published:

  • Issue Date:

  • DOI:


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing