Back-contact perovskite solar cells with honeycomb-like charge collecting electrodes

Qicheng Hou; Dorota Bacal; Askhat N. Jumabekov; Wei Li; Ziyu Wang; Xiongfeng Lin; Soon Hock Ng; Boer Tan; Qiaoliang Bao; Anthony S.R. Chesman; Yi Bing Cheng; Udo Bach

doi:10.1016/j.nanoen.2018.06.006

Back-contact perovskite solar cells with honeycomb-like charge collecting electrodes

Qicheng Hou, Dorota Bacal, Askhat N. Jumabekov, Wei Li, Ziyu Wang, Xiongfeng Lin, Soon Hock Ng, Boer Tan, Qiaoliang Bao, Anthony S.R. Chesman, Yi Bing Cheng, Udo Bach

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

48 Citations (Scopus)

Abstract

Back-contact electrodes have been broadly applied to silicon photovoltaics to enhance their performance and avoid parasitic absorption from window materials and charge collection grids [1,2]. Here we introduce an innovative back-contact design for perovskite solar cells (PSCs) derived from our recently described quasi-interdigitated back-contact architecture [3]. The back contact consists of a top electrode, which has a honeycomb-like grid geometry, that is separated from the underlying planar bottom electrode by a similarly shaped insulating Al ₂ O ₃ layer. This new design has higher structural robustness, as well as better defect tolerance, resulting in the highest short-circuit current (~ 16.4 mA/cm ² ) and stabilized power output (~ 4%) for a back-contact PSC to date. The improved performance was attributed to an increased charge collecting efficiency, with photocurrent mapping revealing what electrode dimensions are required for optimum efficiency.

Original language	English
Pages (from-to)	710-716
Number of pages	7
Journal	Nano Energy
Volume	50
DOIs	https://doi.org/10.1016/j.nanoen.2018.06.006
Publication status	Published - 1 Aug 2018

Keywords

Back-contact
Honeycomb-shape
Perovskite solar cells
Photolithography
Quasi-interdigitated electrodes

UN SDGs

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

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10.1016/j.nanoen.2018.06.006

Cite this

@article{09114c159a454e31982a758241916533,

title = "Back-contact perovskite solar cells with honeycomb-like charge collecting electrodes",

abstract = " Back-contact electrodes have been broadly applied to silicon photovoltaics to enhance their performance and avoid parasitic absorption from window materials and charge collection grids [1,2]. Here we introduce an innovative back-contact design for perovskite solar cells (PSCs) derived from our recently described quasi-interdigitated back-contact architecture [3]. The back contact consists of a top electrode, which has a honeycomb-like grid geometry, that is separated from the underlying planar bottom electrode by a similarly shaped insulating Al 2 O 3 layer. This new design has higher structural robustness, as well as better defect tolerance, resulting in the highest short-circuit current (~ 16.4 mA/cm 2 ) and stabilized power output (~ 4%) for a back-contact PSC to date. The improved performance was attributed to an increased charge collecting efficiency, with photocurrent mapping revealing what electrode dimensions are required for optimum efficiency. ",

keywords = "Back-contact, Honeycomb-shape, Perovskite solar cells, Photolithography, Quasi-interdigitated electrodes",

author = "Qicheng Hou and Dorota Bacal and Jumabekov, {Askhat N.} and Wei Li and Ziyu Wang and Xiongfeng Lin and Ng, {Soon Hock} and Boer Tan and Qiaoliang Bao and Chesman, {Anthony S.R.} and Cheng, {Yi Bing} and Udo Bach",

year = "2018",

month = aug,

day = "1",

doi = "10.1016/j.nanoen.2018.06.006",

language = "English",

volume = "50",

pages = "710--716",

journal = "Nano Energy",

issn = "2211-2855",

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TY - JOUR

T1 - Back-contact perovskite solar cells with honeycomb-like charge collecting electrodes

AU - Hou, Qicheng

AU - Bacal, Dorota

AU - Jumabekov, Askhat N.

AU - Li, Wei

AU - Wang, Ziyu

AU - Lin, Xiongfeng

AU - Ng, Soon Hock

AU - Tan, Boer

AU - Bao, Qiaoliang

AU - Chesman, Anthony S.R.

AU - Cheng, Yi Bing

AU - Bach, Udo

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Back-contact electrodes have been broadly applied to silicon photovoltaics to enhance their performance and avoid parasitic absorption from window materials and charge collection grids [1,2]. Here we introduce an innovative back-contact design for perovskite solar cells (PSCs) derived from our recently described quasi-interdigitated back-contact architecture [3]. The back contact consists of a top electrode, which has a honeycomb-like grid geometry, that is separated from the underlying planar bottom electrode by a similarly shaped insulating Al 2 O 3 layer. This new design has higher structural robustness, as well as better defect tolerance, resulting in the highest short-circuit current (~ 16.4 mA/cm 2 ) and stabilized power output (~ 4%) for a back-contact PSC to date. The improved performance was attributed to an increased charge collecting efficiency, with photocurrent mapping revealing what electrode dimensions are required for optimum efficiency.

AB - Back-contact electrodes have been broadly applied to silicon photovoltaics to enhance their performance and avoid parasitic absorption from window materials and charge collection grids [1,2]. Here we introduce an innovative back-contact design for perovskite solar cells (PSCs) derived from our recently described quasi-interdigitated back-contact architecture [3]. The back contact consists of a top electrode, which has a honeycomb-like grid geometry, that is separated from the underlying planar bottom electrode by a similarly shaped insulating Al 2 O 3 layer. This new design has higher structural robustness, as well as better defect tolerance, resulting in the highest short-circuit current (~ 16.4 mA/cm 2 ) and stabilized power output (~ 4%) for a back-contact PSC to date. The improved performance was attributed to an increased charge collecting efficiency, with photocurrent mapping revealing what electrode dimensions are required for optimum efficiency.

KW - Back-contact

KW - Honeycomb-shape

KW - Perovskite solar cells

KW - Photolithography

KW - Quasi-interdigitated electrodes

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U2 - 10.1016/j.nanoen.2018.06.006

DO - 10.1016/j.nanoen.2018.06.006

M3 - Article

AN - SCOPUS:85048404574

SN - 2211-2855

VL - 50

SP - 710

EP - 716

JO - Nano Energy

JF - Nano Energy

ER -

Back-contact perovskite solar cells with honeycomb-like charge collecting electrodes

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

ARC Centre of Excellence in Future Low-energy Electronics Technologies

Centre for Electron Microscopy (MCEM)

Melbourne Centre for Nanofabrication

Cite this

Back-contact perovskite solar cells with honeycomb-like charge collecting electrodes

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Projects

ARC Centre of Excellence in Future Low-energy Electronics Technologies

Equipment

Centre for Electron Microscopy (MCEM)

Melbourne Centre for Nanofabrication

Cite this