Mechanical integrity of solution-processed perovskite solar cells

Nicholas Rolston, Brian L. Watson, Colin D. Bailie, Michael D. McGehee, João P. Bastos, Robert Gehlhaar, Jueng Eun Kim, Doojin Vak, Arun Tej Mallajosyula, Gautam Gupta, Aditya D. Mohite, Reinhold H. Dauskardt

Research output: Contribution to journalArticleResearchpeer-review

51 Citations (Scopus)

Abstract

Low-cost solar technologies such as perovskite solar cells are not only required to be efficient, but durable too, exhibiting chemical, thermal and mechanical stability. To determine the mechanical stability of perovskite solar cells, the fracture resistance of a multitude of solution-processed organometal trihalide perovskite films and cells utilizing these films were studied. The influence of stoichiometry, precursor chemistry, deposition techniques, and processing conditions on the fracture resistance of perovskite layers was investigated. In all cases, the perovskites offered negligible resistance to fracture, failing cohesively below 1.5 J/m2. The solar cells studied featured these perovskites and a variety of organic and inorganic charge transporting layers and carrier-selective contacts. These ancillary layers were found to significantly influence the overall mechanical stability of the perovskite solar cells and were repeatedly the primary source of mechanical failure, failing at values below those measured for the isolated fragile perovskite films. A detailed insight into the nature of perovskite and perovskite solar cell fracture is presented and the influence of grain size, device architecture, deposition techniques, environmental variables, and molecular additives on these fracture processes is reported. Understanding the influence of materials selection, deposition techniques and processing variables on the mechanical stability of perovskite solar cells is a crucial step in their development.

Original languageEnglish
Pages (from-to)353-358
Number of pages6
JournalExtreme Mechanics Letters
Volume9
DOIs
Publication statusPublished - 1 Dec 2016
Externally publishedYes

Keywords

  • Degradation modes
  • Fracture processes
  • Grain boundaries
  • Perovskite solar cells
  • Thermomechanical reliability

Cite this

Rolston, N., Watson, B. L., Bailie, C. D., McGehee, M. D., Bastos, J. P., Gehlhaar, R., ... Dauskardt, R. H. (2016). Mechanical integrity of solution-processed perovskite solar cells. Extreme Mechanics Letters, 9, 353-358. https://doi.org/10.1016/j.eml.2016.06.006
Rolston, Nicholas ; Watson, Brian L. ; Bailie, Colin D. ; McGehee, Michael D. ; Bastos, João P. ; Gehlhaar, Robert ; Kim, Jueng Eun ; Vak, Doojin ; Mallajosyula, Arun Tej ; Gupta, Gautam ; Mohite, Aditya D. ; Dauskardt, Reinhold H. / Mechanical integrity of solution-processed perovskite solar cells. In: Extreme Mechanics Letters. 2016 ; Vol. 9. pp. 353-358.
@article{e53445ec191147fbb35e806805451b71,
title = "Mechanical integrity of solution-processed perovskite solar cells",
abstract = "Low-cost solar technologies such as perovskite solar cells are not only required to be efficient, but durable too, exhibiting chemical, thermal and mechanical stability. To determine the mechanical stability of perovskite solar cells, the fracture resistance of a multitude of solution-processed organometal trihalide perovskite films and cells utilizing these films were studied. The influence of stoichiometry, precursor chemistry, deposition techniques, and processing conditions on the fracture resistance of perovskite layers was investigated. In all cases, the perovskites offered negligible resistance to fracture, failing cohesively below 1.5 J/m2. The solar cells studied featured these perovskites and a variety of organic and inorganic charge transporting layers and carrier-selective contacts. These ancillary layers were found to significantly influence the overall mechanical stability of the perovskite solar cells and were repeatedly the primary source of mechanical failure, failing at values below those measured for the isolated fragile perovskite films. A detailed insight into the nature of perovskite and perovskite solar cell fracture is presented and the influence of grain size, device architecture, deposition techniques, environmental variables, and molecular additives on these fracture processes is reported. Understanding the influence of materials selection, deposition techniques and processing variables on the mechanical stability of perovskite solar cells is a crucial step in their development.",
keywords = "Degradation modes, Fracture processes, Grain boundaries, Perovskite solar cells, Thermomechanical reliability",
author = "Nicholas Rolston and Watson, {Brian L.} and Bailie, {Colin D.} and McGehee, {Michael D.} and Bastos, {Jo{\~a}o P.} and Robert Gehlhaar and Kim, {Jueng Eun} and Doojin Vak and Mallajosyula, {Arun Tej} and Gautam Gupta and Mohite, {Aditya D.} and Dauskardt, {Reinhold H.}",
year = "2016",
month = "12",
day = "1",
doi = "10.1016/j.eml.2016.06.006",
language = "English",
volume = "9",
pages = "353--358",
journal = "Extreme Mechanics Letters",
issn = "2352-4316",
publisher = "Elsevier",

}

Rolston, N, Watson, BL, Bailie, CD, McGehee, MD, Bastos, JP, Gehlhaar, R, Kim, JE, Vak, D, Mallajosyula, AT, Gupta, G, Mohite, AD & Dauskardt, RH 2016, 'Mechanical integrity of solution-processed perovskite solar cells', Extreme Mechanics Letters, vol. 9, pp. 353-358. https://doi.org/10.1016/j.eml.2016.06.006

Mechanical integrity of solution-processed perovskite solar cells. / Rolston, Nicholas; Watson, Brian L.; Bailie, Colin D.; McGehee, Michael D.; Bastos, João P.; Gehlhaar, Robert; Kim, Jueng Eun; Vak, Doojin; Mallajosyula, Arun Tej; Gupta, Gautam; Mohite, Aditya D.; Dauskardt, Reinhold H.

In: Extreme Mechanics Letters, Vol. 9, 01.12.2016, p. 353-358.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Mechanical integrity of solution-processed perovskite solar cells

AU - Rolston, Nicholas

AU - Watson, Brian L.

AU - Bailie, Colin D.

AU - McGehee, Michael D.

AU - Bastos, João P.

AU - Gehlhaar, Robert

AU - Kim, Jueng Eun

AU - Vak, Doojin

AU - Mallajosyula, Arun Tej

AU - Gupta, Gautam

AU - Mohite, Aditya D.

AU - Dauskardt, Reinhold H.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - Low-cost solar technologies such as perovskite solar cells are not only required to be efficient, but durable too, exhibiting chemical, thermal and mechanical stability. To determine the mechanical stability of perovskite solar cells, the fracture resistance of a multitude of solution-processed organometal trihalide perovskite films and cells utilizing these films were studied. The influence of stoichiometry, precursor chemistry, deposition techniques, and processing conditions on the fracture resistance of perovskite layers was investigated. In all cases, the perovskites offered negligible resistance to fracture, failing cohesively below 1.5 J/m2. The solar cells studied featured these perovskites and a variety of organic and inorganic charge transporting layers and carrier-selective contacts. These ancillary layers were found to significantly influence the overall mechanical stability of the perovskite solar cells and were repeatedly the primary source of mechanical failure, failing at values below those measured for the isolated fragile perovskite films. A detailed insight into the nature of perovskite and perovskite solar cell fracture is presented and the influence of grain size, device architecture, deposition techniques, environmental variables, and molecular additives on these fracture processes is reported. Understanding the influence of materials selection, deposition techniques and processing variables on the mechanical stability of perovskite solar cells is a crucial step in their development.

AB - Low-cost solar technologies such as perovskite solar cells are not only required to be efficient, but durable too, exhibiting chemical, thermal and mechanical stability. To determine the mechanical stability of perovskite solar cells, the fracture resistance of a multitude of solution-processed organometal trihalide perovskite films and cells utilizing these films were studied. The influence of stoichiometry, precursor chemistry, deposition techniques, and processing conditions on the fracture resistance of perovskite layers was investigated. In all cases, the perovskites offered negligible resistance to fracture, failing cohesively below 1.5 J/m2. The solar cells studied featured these perovskites and a variety of organic and inorganic charge transporting layers and carrier-selective contacts. These ancillary layers were found to significantly influence the overall mechanical stability of the perovskite solar cells and were repeatedly the primary source of mechanical failure, failing at values below those measured for the isolated fragile perovskite films. A detailed insight into the nature of perovskite and perovskite solar cell fracture is presented and the influence of grain size, device architecture, deposition techniques, environmental variables, and molecular additives on these fracture processes is reported. Understanding the influence of materials selection, deposition techniques and processing variables on the mechanical stability of perovskite solar cells is a crucial step in their development.

KW - Degradation modes

KW - Fracture processes

KW - Grain boundaries

KW - Perovskite solar cells

KW - Thermomechanical reliability

UR - http://www.scopus.com/inward/record.url?scp=84977085544&partnerID=8YFLogxK

U2 - 10.1016/j.eml.2016.06.006

DO - 10.1016/j.eml.2016.06.006

M3 - Article

AN - SCOPUS:84977085544

VL - 9

SP - 353

EP - 358

JO - Extreme Mechanics Letters

JF - Extreme Mechanics Letters

SN - 2352-4316

ER -

Rolston N, Watson BL, Bailie CD, McGehee MD, Bastos JP, Gehlhaar R et al. Mechanical integrity of solution-processed perovskite solar cells. Extreme Mechanics Letters. 2016 Dec 1;9:353-358. https://doi.org/10.1016/j.eml.2016.06.006