Beyond Perovskite Solar Cells: Tellurium Iodide as a Promising Light-Absorbing Material for Solution-Processed Photovoltaic Application

Ahmed Ali Said; Jian Xie; Kexiang Zhao; Wenbo Liu; Fei Yu; Qichun Zhang

doi:10.1002/asia.202000262

Beyond Perovskite Solar Cells: Tellurium Iodide as a Promising Light-Absorbing Material for Solution-Processed Photovoltaic Application

Ahmed Ali Said, Jian Xie, Kexiang Zhao, Wenbo Liu, Fei Yu, Qichun Zhang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

Abstract

Searching new light-absorbing materials to replace toxic lead halide in solar cells is very important and highly desirable. In this research, we firstly demonstrated that tellurium iodide (TeI₄) could be used as a light-absorbing material in solar cells due to its suitable optical band gap and the active lone-pair electron orbital in Te⁴⁺. The best power conversion efficiency (PCE=3.56%) was achieved with a concentration of 0.9 M TeI₄ in DMF:DMSO (4:1, v,v) without any heat treatment or antisolvent dripping. Our study indicates the promising potential of TeI₄ for photovoltaic and optoelectronic applications.

Original language	English
Pages (from-to)	1505-1509
Journal	Chemistry - An Asian Journal
Volume	15
Issue number	9
Online published	23 Mar 2020
DOIs	https://doi.org/10.1002/asia.202000262
Publication status	Published - 4 May 2020
Externally published	Yes

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

SDG 7 Affordable and Clean Energy

Research Keywords

beyond perovskite solar cells
lead-free solar cells
non-toxic light absorber
TeI4

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10.1002/asia.202000262

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abstract = "Searching new light-absorbing materials to replace toxic lead halide in solar cells is very important and highly desirable. In this research, we firstly demonstrated that tellurium iodide (TeI4) could be used as a light-absorbing material in solar cells due to its suitable optical band gap and the active lone-pair electron orbital in Te4+. The best power conversion efficiency (PCE=3.56%) was achieved with a concentration of 0.9 M TeI4 in DMF:DMSO (4:1, v,v) without any heat treatment or antisolvent dripping. Our study indicates the promising potential of TeI4 for photovoltaic and optoelectronic applications.",

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author = "Said, {Ahmed Ali} and Jian Xie and Kexiang Zhao and Wenbo Liu and Fei Yu and Qichun Zhang",

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language = "English",

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Beyond Perovskite Solar Cells: Tellurium Iodide as a Promising Light-Absorbing Material for Solution-Processed Photovoltaic Application. / Said, Ahmed Ali; Xie, Jian; Zhao, Kexiang et al.
In: Chemistry - An Asian Journal, Vol. 15, No. 9, 04.05.2020, p. 1505-1509.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Beyond Perovskite Solar Cells

T2 - Tellurium Iodide as a Promising Light-Absorbing Material for Solution-Processed Photovoltaic Application

AU - Said, Ahmed Ali

AU - Xie, Jian

AU - Zhao, Kexiang

AU - Liu, Wenbo

AU - Yu, Fei

AU - Zhang, Qichun

PY - 2020/5/4

Y1 - 2020/5/4

N2 - Searching new light-absorbing materials to replace toxic lead halide in solar cells is very important and highly desirable. In this research, we firstly demonstrated that tellurium iodide (TeI4) could be used as a light-absorbing material in solar cells due to its suitable optical band gap and the active lone-pair electron orbital in Te4+. The best power conversion efficiency (PCE=3.56%) was achieved with a concentration of 0.9 M TeI4 in DMF:DMSO (4:1, v,v) without any heat treatment or antisolvent dripping. Our study indicates the promising potential of TeI4 for photovoltaic and optoelectronic applications.

AB - Searching new light-absorbing materials to replace toxic lead halide in solar cells is very important and highly desirable. In this research, we firstly demonstrated that tellurium iodide (TeI4) could be used as a light-absorbing material in solar cells due to its suitable optical band gap and the active lone-pair electron orbital in Te4+. The best power conversion efficiency (PCE=3.56%) was achieved with a concentration of 0.9 M TeI4 in DMF:DMSO (4:1, v,v) without any heat treatment or antisolvent dripping. Our study indicates the promising potential of TeI4 for photovoltaic and optoelectronic applications.

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KW - lead-free solar cells

KW - non-toxic light absorber

KW - TeI4

KW - beyond perovskite solar cells

KW - lead-free solar cells

KW - non-toxic light absorber

KW - TeI4

KW - beyond perovskite solar cells

KW - lead-free solar cells

KW - non-toxic light absorber

KW - TeI4

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JO - Chemistry - An Asian Journal

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ER -

Beyond Perovskite Solar Cells: Tellurium Iodide as a Promising Light-Absorbing Material for Solution-Processed Photovoltaic Application

Abstract

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