Lead-Free Perovskite Semiconductors Based on Germanium-Tin Solid Solutions: Structural and Optoelectronic Properties

Satyawan Nagane; Dibyajyoti Ghosh; Robert L.Z. Hoye; Baodan Zhao; Shahab Ahmad; Alison B. Walker; M. Saiful Islam; Satishchandra Ogale; Aditya Sadhanala

doi:10.1021/acs.jpcc.8b00480

Lead-Free Perovskite Semiconductors Based on Germanium-Tin Solid Solutions: Structural and Optoelectronic Properties

Satyawan Nagane, Dibyajyoti Ghosh, Robert L.Z. Hoye, Baodan Zhao, Shahab Ahmad, Alison B. Walker, M. Saiful Islam, Satishchandra Ogale, Aditya Sadhanala

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

88 Citations (SciVal)

287 Downloads (Pure)

Abstract

Solar cells and optoelectronics based on lead halide perovskites are generating considerable interest but face challenges with the use of toxic lead. In this study, we fabricate and characterize lead-free perovskites based on germanium and tin solid solutions, CH₃NH₃Sn_(1-x)Ge_xI₃ (0 ≤ x ≤ 1). We show that these perovskite compounds possess band gaps from 1.3 to 2.0 eV, which are suitable for a range of optoelectronic applications, from single junction devices and top cells for tandems to light-emitting layers. Their thermodynamic stability and electronic properties are calculated for all compositions and agree well with our experimental measurements. Our findings demonstrate an attractive family of lead-free perovskite semiconductors with a favorable band-gap range for efficient single-junction solar cells.

Original language	English
Pages (from-to)	5940-5947
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	122
Issue number	11
Early online date	28 Feb 2018
DOIs	https://doi.org/10.1021/acs.jpcc.8b00480
Publication status	Published - 22 Mar 2018

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

Access to Document

10.1021/acs.jpcc.8b00480

MASnGeI3 Main text 19_2 (PDF)
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal fo Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.8b00480.
Accepted author manuscript, 1.88 MB
MASnGeI3_SI_19_2 Supplementary Information (PDF)
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal fo Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.8b00480.
Accepted author manuscript, 2.81 MB

Cite this

@article{fcc854eaa8644a2a996c744c668991f2,

title = "Lead-Free Perovskite Semiconductors Based on Germanium-Tin Solid Solutions: Structural and Optoelectronic Properties",

abstract = "Solar cells and optoelectronics based on lead halide perovskites are generating considerable interest but face challenges with the use of toxic lead. In this study, we fabricate and characterize lead-free perovskites based on germanium and tin solid solutions, CH3NH3Sn(1-x)GexI3 (0 ≤ x ≤ 1). We show that these perovskite compounds possess band gaps from 1.3 to 2.0 eV, which are suitable for a range of optoelectronic applications, from single junction devices and top cells for tandems to light-emitting layers. Their thermodynamic stability and electronic properties are calculated for all compositions and agree well with our experimental measurements. Our findings demonstrate an attractive family of lead-free perovskite semiconductors with a favorable band-gap range for efficient single-junction solar cells.",

author = "Satyawan Nagane and Dibyajyoti Ghosh and Hoye, {Robert L.Z.} and Baodan Zhao and Shahab Ahmad and Walker, {Alison B.} and {Saiful Islam}, M. and Satishchandra Ogale and Aditya Sadhanala",

year = "2018",

month = mar,

day = "22",

doi = "10.1021/acs.jpcc.8b00480",

language = "English",

volume = "122",

pages = "5940--5947",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "11",

}

TY - JOUR

T1 - Lead-Free Perovskite Semiconductors Based on Germanium-Tin Solid Solutions

T2 - Structural and Optoelectronic Properties

AU - Nagane, Satyawan

AU - Ghosh, Dibyajyoti

AU - Hoye, Robert L.Z.

AU - Zhao, Baodan

AU - Ahmad, Shahab

AU - Walker, Alison B.

AU - Saiful Islam, M.

AU - Ogale, Satishchandra

AU - Sadhanala, Aditya

PY - 2018/3/22

Y1 - 2018/3/22

N2 - Solar cells and optoelectronics based on lead halide perovskites are generating considerable interest but face challenges with the use of toxic lead. In this study, we fabricate and characterize lead-free perovskites based on germanium and tin solid solutions, CH3NH3Sn(1-x)GexI3 (0 ≤ x ≤ 1). We show that these perovskite compounds possess band gaps from 1.3 to 2.0 eV, which are suitable for a range of optoelectronic applications, from single junction devices and top cells for tandems to light-emitting layers. Their thermodynamic stability and electronic properties are calculated for all compositions and agree well with our experimental measurements. Our findings demonstrate an attractive family of lead-free perovskite semiconductors with a favorable band-gap range for efficient single-junction solar cells.

AB - Solar cells and optoelectronics based on lead halide perovskites are generating considerable interest but face challenges with the use of toxic lead. In this study, we fabricate and characterize lead-free perovskites based on germanium and tin solid solutions, CH3NH3Sn(1-x)GexI3 (0 ≤ x ≤ 1). We show that these perovskite compounds possess band gaps from 1.3 to 2.0 eV, which are suitable for a range of optoelectronic applications, from single junction devices and top cells for tandems to light-emitting layers. Their thermodynamic stability and electronic properties are calculated for all compositions and agree well with our experimental measurements. Our findings demonstrate an attractive family of lead-free perovskite semiconductors with a favorable band-gap range for efficient single-junction solar cells.

UR - http://www.scopus.com/inward/record.url?scp=85044393792&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.8b00480

DO - 10.1021/acs.jpcc.8b00480

M3 - Article

AN - SCOPUS:85044393792

SN - 1932-7447

VL - 122

SP - 5940

EP - 5947

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 11

ER -

Lead-Free Perovskite Semiconductors Based on Germanium-Tin Solid Solutions: Structural and Optoelectronic Properties

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this