Growth and characterization of highly mismatched Zn1-xCdxTe1-yOy alloys for intermediate band solar cells

T. Tanaka; K. Mizoguchi; T. Terasawa; Y. Okano; K. Saito; Q. Guo; M. Nishio; K. M. Yu; W. Walukiewicz

doi:10.1109/PVSC.2015.7355915

Growth and characterization of highly mismatched Zn1-xCdxTe1-yOy alloys for intermediate band solar cells

T. Tanaka
, K. Mizoguchi
, T. Terasawa
, Y. Okano
, K. Saito
, Q. Guo
, M. Nishio
, K. M. Yu
, W. Walukiewicz

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

1 Citation (Scopus)

Abstract

We report the growth and characterization of the Zn1-xCdxTe1-yOy (ZnCdTeO) layers on ZnTe substrates by molecular beam epitaxy technique for the application of intermediate band solar cells. ZnCdTeO layers with a wide range of Cd and O contents of 0-0.7 and 0.005-0.02, respectively, were grown by changing Cd/(Cd+Zn) flux ratio and O radical supply. The decrease of the transition energy from valence band (VB) to E- band with increasing Cd content was observed by photoreflectance measurements and the variation was consistent with the theoretical calculations based on the band anticrossing model. The magnitude of the optical absorption near the transition energy from VB to E- band depended on the Cd content because of the change of the E- band character.

Original language	English
Title of host publication	2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
Publisher	IEEE
ISBN (Print)	9781479979448
DOIs	https://doi.org/10.1109/PVSC.2015.7355915
Publication status	Published - 14 Dec 2015
Event	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States Duration: 14 Jun 2015 → 19 Jun 2015

Conference

Conference	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
Place	United States
City	New Orleans
Period	14/06/15 → 19/06/15

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

II-VI semiconductor materials
intermediate band solar cells
Photovoltaic cells
ZnTeO

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10.1109/PVSC.2015.7355915

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@inproceedings{6f06976e7dcc4ebc83119556121690d5,

title = "Growth and characterization of highly mismatched Zn1-xCdxTe1-yOy alloys for intermediate band solar cells",

abstract = "We report the growth and characterization of the Zn1-xCdxTe1-yOy (ZnCdTeO) layers on ZnTe substrates by molecular beam epitaxy technique for the application of intermediate band solar cells. ZnCdTeO layers with a wide range of Cd and O contents of 0-0.7 and 0.005-0.02, respectively, were grown by changing Cd/(Cd+Zn) flux ratio and O radical supply. The decrease of the transition energy from valence band (VB) to E- band with increasing Cd content was observed by photoreflectance measurements and the variation was consistent with the theoretical calculations based on the band anticrossing model. The magnitude of the optical absorption near the transition energy from VB to E- band depended on the Cd content because of the change of the E- band character.",

keywords = "II-VI semiconductor materials, intermediate band solar cells, Photovoltaic cells, ZnTeO",

author = "T. Tanaka and K. Mizoguchi and T. Terasawa and Y. Okano and K. Saito and Q. Guo and M. Nishio and Yu, \{K. M.\} and W. Walukiewicz",

year = "2015",

month = dec,

day = "14",

doi = "10.1109/PVSC.2015.7355915",

language = "English",

isbn = "9781479979448",

booktitle = "2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015",

publisher = "IEEE",

address = "United States",

note = "42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 ; Conference date: 14-06-2015 Through 19-06-2015",

}

Tanaka, T, Mizoguchi, K, Terasawa, T, Okano, Y, Saito, K, Guo, Q, Nishio, M, Yu, KM & Walukiewicz, W 2015, Growth and characterization of highly mismatched Zn1-xCdxTe1-yOy alloys for intermediate band solar cells. in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015., 7355915, IEEE, 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States, 14/06/15. https://doi.org/10.1109/PVSC.2015.7355915

Growth and characterization of highly mismatched Zn1-xCdxTe1-yOy alloys for intermediate band solar cells. / Tanaka, T.; Mizoguchi, K.; Terasawa, T. et al.
2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. IEEE, 2015. 7355915.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Growth and characterization of highly mismatched Zn1-xCdxTe1-yOy alloys for intermediate band solar cells

AU - Tanaka, T.

AU - Mizoguchi, K.

AU - Terasawa, T.

AU - Okano, Y.

AU - Saito, K.

AU - Guo, Q.

AU - Nishio, M.

AU - Yu, K. M.

AU - Walukiewicz, W.

PY - 2015/12/14

Y1 - 2015/12/14

N2 - We report the growth and characterization of the Zn1-xCdxTe1-yOy (ZnCdTeO) layers on ZnTe substrates by molecular beam epitaxy technique for the application of intermediate band solar cells. ZnCdTeO layers with a wide range of Cd and O contents of 0-0.7 and 0.005-0.02, respectively, were grown by changing Cd/(Cd+Zn) flux ratio and O radical supply. The decrease of the transition energy from valence band (VB) to E- band with increasing Cd content was observed by photoreflectance measurements and the variation was consistent with the theoretical calculations based on the band anticrossing model. The magnitude of the optical absorption near the transition energy from VB to E- band depended on the Cd content because of the change of the E- band character.

AB - We report the growth and characterization of the Zn1-xCdxTe1-yOy (ZnCdTeO) layers on ZnTe substrates by molecular beam epitaxy technique for the application of intermediate band solar cells. ZnCdTeO layers with a wide range of Cd and O contents of 0-0.7 and 0.005-0.02, respectively, were grown by changing Cd/(Cd+Zn) flux ratio and O radical supply. The decrease of the transition energy from valence band (VB) to E- band with increasing Cd content was observed by photoreflectance measurements and the variation was consistent with the theoretical calculations based on the band anticrossing model. The magnitude of the optical absorption near the transition energy from VB to E- band depended on the Cd content because of the change of the E- band character.

KW - II-VI semiconductor materials

KW - intermediate band solar cells

KW - Photovoltaic cells

KW - ZnTeO

UR - https://www.scopus.com/pages/publications/84961629215

UR - https://www.scopus.com/pages/publications/84961629215#tab=impact

U2 - 10.1109/PVSC.2015.7355915

DO - 10.1109/PVSC.2015.7355915

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781479979448

BT - 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015

PB - IEEE

T2 - 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015

Y2 - 14 June 2015 through 19 June 2015

ER -

Growth and characterization of highly mismatched Zn1-xCdxTe1-yOy alloys for intermediate band solar cells

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