Influence of Si doping on InAs/GaAs quantum dot solar cells with AlAs cap layers

Dongyoung Kim; Mingchu Tang; Jiang Wu; Sabina Hatch; Yurii Maidaniuk; Vitaliy Dorogan; Yuriy I. Mazur; Gregory J. Salamo; Huiyun Liu

doi:10.1117/12.2250328

23 February 2017 Influence of Si doping on InAs/GaAs quantum dot solar cells with AlAs cap layers

Dongyoung Kim, Mingchu Tang, Jiang Wu, Sabina Hatch, Yurii Maidaniuk, Vitaliy Dorogan, Yuriy I. Mazur, Gregory J. Salamo, Huiyun Liu

Author Affiliations +

Proceedings Volume 10099, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI; 100990H (2017) https://doi.org/10.1117/12.2250328
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

In this work, the effect of Si doping on InAs/GaAs quantum dot solar cells with AlAs cap layers is studied. The AlAs cap layers suppress the formation of the wetting layer during quantum dot growth. This helps achieve quantum dot state filling, which is one of the requirements for strong sub-bandgap photon absorption in the quantum dot intermediate band solar cell, at lower Si doping density. Furthermore, the passivation of defect states in the quantum dots with moderate Si doping is demonstrated, which leads to an enhancement of the carrier lifetime in the quantum dots, and hence the open-circuit voltage.

Conference Presentation

Citation Download Citation

Dongyoung Kim, Mingchu Tang, Jiang Wu, Sabina Hatch, Yurii Maidaniuk, Vitaliy Dorogan, Yuriy I. Mazur, Gregory J. Salamo, and Huiyun Liu "Influence of Si doping on InAs/GaAs quantum dot solar cells with AlAs cap layers", Proc. SPIE 10099, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI, 100990H (23 February 2017); https://doi.org/10.1117/12.2250328

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available