Enhanced performance and stability in DNA-perovskite heterostructure-based solar cells

Yuchen Hou, Kai Wang, Dong Yang, Yuanyuan Jiang, Neela Yennawar, Ke Wang, Mohan Sanghadasa, Congcong Wu, Shashank Priya

Research output: Contribution to journalArticle

Abstract

Deoxyribonucleic acid (DNA) has been recently recognized as hole transport material apart from its well-known generic role. The promising long-range hole transport capability in DNA make it potential "molecular wire" in optoelectronics. Here, we demonstrate a core-shell heterostructure of perovskite wrapped by cetyltrimethylammonium chloride modified DNA (DNA-CTMA) through a self-assembly process. Such a design results in enhanced extraction and transport of holes in the bio-photovoltaic device and boosts the efficiency to 20.63%. The hydrophobicity of the DNA-CTMA shell surrounding the perovskite grain boundary is also found to enhance the device stability, as the corresponding cell retained over 90% of initial efficiency after long-term ambient exposure. Building upon the hole transport characteristics of DNA-CTMA, a hole-free device is fabricated that exhibits high power conversion efficiency but has 50â»000% reduced cost. These results not only demonstrate breakthrough in designing cheap, efficient, and stable bio-photovoltaics but also open the pathway towards the exciting possibility of controlled interaction between living and artificial semiconductors.

Original languageEnglish (US)
Pages (from-to)2646-2655
Number of pages10
JournalACS Energy Letters
Volume4
Issue number11
DOIs
StatePublished - Nov 8 2019

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Perovskite
Heterojunctions
Solar cells
DNA
Beam plasma interactions
Hydrophobicity
Optoelectronic devices
Self assembly
Conversion efficiency
perovskite
Grain boundaries
Wire
Semiconductor materials
Costs

All Science Journal Classification (ASJC) codes

  • Chemistry (miscellaneous)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Materials Chemistry

Cite this

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title = "Enhanced performance and stability in DNA-perovskite heterostructure-based solar cells",
abstract = "Deoxyribonucleic acid (DNA) has been recently recognized as hole transport material apart from its well-known generic role. The promising long-range hole transport capability in DNA make it potential {"}molecular wire{"} in optoelectronics. Here, we demonstrate a core-shell heterostructure of perovskite wrapped by cetyltrimethylammonium chloride modified DNA (DNA-CTMA) through a self-assembly process. Such a design results in enhanced extraction and transport of holes in the bio-photovoltaic device and boosts the efficiency to 20.63{\%}. The hydrophobicity of the DNA-CTMA shell surrounding the perovskite grain boundary is also found to enhance the device stability, as the corresponding cell retained over 90{\%} of initial efficiency after long-term ambient exposure. Building upon the hole transport characteristics of DNA-CTMA, a hole-free device is fabricated that exhibits high power conversion efficiency but has 50{\^a}»000{\%} reduced cost. These results not only demonstrate breakthrough in designing cheap, efficient, and stable bio-photovoltaics but also open the pathway towards the exciting possibility of controlled interaction between living and artificial semiconductors.",
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Enhanced performance and stability in DNA-perovskite heterostructure-based solar cells. / Hou, Yuchen; Wang, Kai; Yang, Dong; Jiang, Yuanyuan; Yennawar, Neela; Wang, Ke; Sanghadasa, Mohan; Wu, Congcong; Priya, Shashank.

In: ACS Energy Letters, Vol. 4, No. 11, 08.11.2019, p. 2646-2655.

Research output: Contribution to journalArticle

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AU - Hou, Yuchen

AU - Wang, Kai

AU - Yang, Dong

AU - Jiang, Yuanyuan

AU - Yennawar, Neela

AU - Wang, Ke

AU - Sanghadasa, Mohan

AU - Wu, Congcong

AU - Priya, Shashank

PY - 2019/11/8

Y1 - 2019/11/8

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