Insights into kesterite's back contact interface: A status review

Vijay Karade; Abhishek Lokhande; Pravin Babar; Myeng Gil Gang; Mahesh Suryawanshi; Pramod Patil; Jin Hyeok Kim

doi:10.1016/j.solmat.2019.04.033

Insights into kesterite's back contact interface: A status review

Vijay Karade
, Abhishek Lokhande
, Pravin Babar
, Myeng Gil Gang
, Mahesh Suryawanshi
, Pramod Patil
, Jin Hyeok Kim

Mechanical & Nuclear Engineering

Chonnam National University
Shivaji University

Research output: Contribution to journal › Article › peer-review

124 Scopus citations

Abstract

Recently, kesterite-based thin film solar cells (TFSCs) gained significant attention in the photovoltaic (PV) sector for their elemental earth abundancy and low toxicity. The emerging kesterite-based Cu₂ZnSn(S,Se)₄ (CZTSSe) TFSCs have gained a steady rise to the record power conversion efficiency (PCE) of 12.6%, which is still significantly lower than its predecessor chalcopyrite Cu(In, Ga)Se₂ (CIGS) TFSCs. Relatively the low device efficiency in kesterite-based TFSCs is mainly observed due to the instability of back interface during the high temperature thermal annealing (HTTA) process. During the HTTA process the detrimental reactions at Mo/absorber create unsolicited defects like MoS(e)₂ layer, secondary phases and voids which consequently reduce the device efficiency. The present review offers some deep insights of the back-contact interface and interface related defects, besides different solutions to overcome these defects in detail. The interfacial-defects like the formation of MoS(e)₂ layer, secondary phases and voids at Mo/absorber interface are conversed broadly with their respective reaction mechanism. Moreover, the plausible band theory of back contact interface in the presence of interfacial MoS(e)₂ layer and the criteria for ideal back contact are also addressed. In conclusion, this review envisions the contests and perception for achieving high efficiency in kesterite based TFSCs by signifying an improvement in back interface related defects.

Original language	British English
Article number	109911
Journal	Solar Energy Materials and Solar Cells
Volume	200
DOIs	https://doi.org/10.1016/j.solmat.2019.04.033
State	Published - 15 Sep 2019

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Back contact
CZTS(Se)
Interface
MoS(e)
Secondary phases
Solar cell

Access to Document

10.1016/j.solmat.2019.04.033

OpenUrl availability

Full text

Cite this

@article{143468b947ed48da9e62fc7730236e4b,

title = "Insights into kesterite's back contact interface: A status review",

abstract = "Recently, kesterite-based thin film solar cells (TFSCs) gained significant attention in the photovoltaic (PV) sector for their elemental earth abundancy and low toxicity. The emerging kesterite-based Cu2ZnSn(S,Se)4 (CZTSSe) TFSCs have gained a steady rise to the record power conversion efficiency (PCE) of 12.6\%, which is still significantly lower than its predecessor chalcopyrite Cu(In, Ga)Se2 (CIGS) TFSCs. Relatively the low device efficiency in kesterite-based TFSCs is mainly observed due to the instability of back interface during the high temperature thermal annealing (HTTA) process. During the HTTA process the detrimental reactions at Mo/absorber create unsolicited defects like MoS(e)2 layer, secondary phases and voids which consequently reduce the device efficiency. The present review offers some deep insights of the back-contact interface and interface related defects, besides different solutions to overcome these defects in detail. The interfacial-defects like the formation of MoS(e)2 layer, secondary phases and voids at Mo/absorber interface are conversed broadly with their respective reaction mechanism. Moreover, the plausible band theory of back contact interface in the presence of interfacial MoS(e)2 layer and the criteria for ideal back contact are also addressed. In conclusion, this review envisions the contests and perception for achieving high efficiency in kesterite based TFSCs by signifying an improvement in back interface related defects.",

keywords = "Back contact, CZTS(Se), Interface, MoS(e), Secondary phases, Solar cell",

author = "Vijay Karade and Abhishek Lokhande and Pravin Babar and Gang, \{Myeng Gil\} and Mahesh Suryawanshi and Pramod Patil and Kim, \{Jin Hyeok\}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = sep,

day = "15",

doi = "10.1016/j.solmat.2019.04.033",

language = "British English",

volume = "200",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Insights into kesterite's back contact interface

T2 - A status review

AU - Karade, Vijay

AU - Lokhande, Abhishek

AU - Babar, Pravin

AU - Gang, Myeng Gil

AU - Suryawanshi, Mahesh

AU - Patil, Pramod

AU - Kim, Jin Hyeok

PY - 2019/9/15

Y1 - 2019/9/15

N2 - Recently, kesterite-based thin film solar cells (TFSCs) gained significant attention in the photovoltaic (PV) sector for their elemental earth abundancy and low toxicity. The emerging kesterite-based Cu2ZnSn(S,Se)4 (CZTSSe) TFSCs have gained a steady rise to the record power conversion efficiency (PCE) of 12.6%, which is still significantly lower than its predecessor chalcopyrite Cu(In, Ga)Se2 (CIGS) TFSCs. Relatively the low device efficiency in kesterite-based TFSCs is mainly observed due to the instability of back interface during the high temperature thermal annealing (HTTA) process. During the HTTA process the detrimental reactions at Mo/absorber create unsolicited defects like MoS(e)2 layer, secondary phases and voids which consequently reduce the device efficiency. The present review offers some deep insights of the back-contact interface and interface related defects, besides different solutions to overcome these defects in detail. The interfacial-defects like the formation of MoS(e)2 layer, secondary phases and voids at Mo/absorber interface are conversed broadly with their respective reaction mechanism. Moreover, the plausible band theory of back contact interface in the presence of interfacial MoS(e)2 layer and the criteria for ideal back contact are also addressed. In conclusion, this review envisions the contests and perception for achieving high efficiency in kesterite based TFSCs by signifying an improvement in back interface related defects.

AB - Recently, kesterite-based thin film solar cells (TFSCs) gained significant attention in the photovoltaic (PV) sector for their elemental earth abundancy and low toxicity. The emerging kesterite-based Cu2ZnSn(S,Se)4 (CZTSSe) TFSCs have gained a steady rise to the record power conversion efficiency (PCE) of 12.6%, which is still significantly lower than its predecessor chalcopyrite Cu(In, Ga)Se2 (CIGS) TFSCs. Relatively the low device efficiency in kesterite-based TFSCs is mainly observed due to the instability of back interface during the high temperature thermal annealing (HTTA) process. During the HTTA process the detrimental reactions at Mo/absorber create unsolicited defects like MoS(e)2 layer, secondary phases and voids which consequently reduce the device efficiency. The present review offers some deep insights of the back-contact interface and interface related defects, besides different solutions to overcome these defects in detail. The interfacial-defects like the formation of MoS(e)2 layer, secondary phases and voids at Mo/absorber interface are conversed broadly with their respective reaction mechanism. Moreover, the plausible band theory of back contact interface in the presence of interfacial MoS(e)2 layer and the criteria for ideal back contact are also addressed. In conclusion, this review envisions the contests and perception for achieving high efficiency in kesterite based TFSCs by signifying an improvement in back interface related defects.

KW - Back contact

KW - CZTS(Se)

KW - Interface

KW - MoS(e)

KW - Secondary phases

KW - Solar cell

UR - https://www.scopus.com/pages/publications/85065650683

U2 - 10.1016/j.solmat.2019.04.033

DO - 10.1016/j.solmat.2019.04.033

M3 - Article

AN - SCOPUS:85065650683

SN - 0927-0248

VL - 200

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

M1 - 109911

ER -

Insights into kesterite's back contact interface: A status review

Abstract

UN SDGs

Keywords

Access to Document

OpenUrl availability

Other files and links

Fingerprint

Cite this