Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor

Hiroyuki Kanda; Naoyuki Shibayama; Aron Joel Huckaba; Yonghui Lee; Sanghyun Paek; Nadja Klipfel; Cristina Roldán-Carmona; Valentin Ianis Emmanuel Queloz; Giulia Grancini; Yi Zhang; Mousa Abuhelaiqa; Kyung Taek Cho; Mo Li; Mounir Driss Mensi; Sachin Kinge; Mohammad Khaja Nazeeruddin

doi:10.1039/c9ee02028d

Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor

Hiroyuki Kanda, Naoyuki Shibayama, Aron Joel Huckaba, Yonghui Lee, Sanghyun Paek, Nadja Klipfel, Cristina Roldán-Carmona, Valentin Ianis Emmanuel Queloz, Giulia Grancini, Yi Zhang, Mousa Abuhelaiqa, Kyung Taek Cho, Mo Li, Mounir Driss Mensi, Sachin Kinge, Mohammad Khaja Nazeeruddin

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

134 Scopus citations

Abstract

Surface passivation of the perovskite photo absorber is a key factor to improve the photovoltaic performance. So far robust passivation strategies have not yet been revealed. Here, we demonstrate a successful passivation strategy which controls the Fermi-level of the perovskite surface by improving the surface states. Such Fermi-level control caused band-bending between the surface and bulk of the perovskite, which enhanced the hole-extraction from the absorber bulk to the HTM side. As an added benefit, the inorganic passivation layer improved the device light stability. By depositing a thick protection layer on the complete device, a remarkable waterproofing effect was obtained. As a result, an enhancement of V_OC and the conversion efficiency from 20.5% to 22.1% was achieved. We revealed these passivation mechanisms and used perhydropoly(silazane) (PHPS) derived silica to control the perovskite surface states.

Original language	English
Pages (from-to)	1222-1230
Number of pages	9
Journal	Energy and Environmental Science
Volume	13
Issue number	4
DOIs	https://doi.org/10.1039/c9ee02028d
State	Published - Apr 2020

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

ASJC Scopus subject areas

Environmental Chemistry
Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Pollution

UN SDGs

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

Access to Document

10.1039/c9ee02028d

Cite this

Kanda, H., Shibayama, N., Huckaba, A. J., Lee, Y., Paek, S., Klipfel, N., Roldán-Carmona, C., Queloz, V. I. E., Grancini, G., Zhang, Y., Abuhelaiqa, M., Cho, K. T., Li, M., Mensi, M. D., Kinge, S., & Nazeeruddin, M. K. (2020). Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor. Energy and Environmental Science, 13(4), 1222-1230. https://doi.org/10.1039/c9ee02028d

@article{39e5777d8cea4d7ba76eee454c908bde,

title = "Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor",

abstract = "Surface passivation of the perovskite photo absorber is a key factor to improve the photovoltaic performance. So far robust passivation strategies have not yet been revealed. Here, we demonstrate a successful passivation strategy which controls the Fermi-level of the perovskite surface by improving the surface states. Such Fermi-level control caused band-bending between the surface and bulk of the perovskite, which enhanced the hole-extraction from the absorber bulk to the HTM side. As an added benefit, the inorganic passivation layer improved the device light stability. By depositing a thick protection layer on the complete device, a remarkable waterproofing effect was obtained. As a result, an enhancement of VOC and the conversion efficiency from 20.5% to 22.1% was achieved. We revealed these passivation mechanisms and used perhydropoly(silazane) (PHPS) derived silica to control the perovskite surface states.",

author = "Hiroyuki Kanda and Naoyuki Shibayama and Huckaba, {Aron Joel} and Yonghui Lee and Sanghyun Paek and Nadja Klipfel and Cristina Rold{\'a}n-Carmona and Queloz, {Valentin Ianis Emmanuel} and Giulia Grancini and Yi Zhang and Mousa Abuhelaiqa and Cho, {Kyung Taek} and Mo Li and Mensi, {Mounir Driss} and Sachin Kinge and Nazeeruddin, {Mohammad Khaja}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2020",

month = apr,

doi = "10.1039/c9ee02028d",

language = "English",

volume = "13",

pages = "1222--1230",

number = "4",

}

Kanda, H, Shibayama, N, Huckaba, AJ, Lee, Y, Paek, S, Klipfel, N, Roldán-Carmona, C, Queloz, VIE, Grancini, G, Zhang, Y, Abuhelaiqa, M, Cho, KT, Li, M, Mensi, MD, Kinge, S & Nazeeruddin, MK 2020, 'Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor', Energy and Environmental Science, vol. 13, no. 4, pp. 1222-1230. https://doi.org/10.1039/c9ee02028d

TY - JOUR

T1 - Band-bending induced passivation

T2 - High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor

AU - Kanda, Hiroyuki

AU - Shibayama, Naoyuki

AU - Huckaba, Aron Joel

AU - Lee, Yonghui

AU - Paek, Sanghyun

AU - Klipfel, Nadja

AU - Roldán-Carmona, Cristina

AU - Queloz, Valentin Ianis Emmanuel

AU - Grancini, Giulia

AU - Zhang, Yi

AU - Abuhelaiqa, Mousa

AU - Cho, Kyung Taek

AU - Li, Mo

AU - Mensi, Mounir Driss

AU - Kinge, Sachin

AU - Nazeeruddin, Mohammad Khaja

PY - 2020/4

Y1 - 2020/4

N2 - Surface passivation of the perovskite photo absorber is a key factor to improve the photovoltaic performance. So far robust passivation strategies have not yet been revealed. Here, we demonstrate a successful passivation strategy which controls the Fermi-level of the perovskite surface by improving the surface states. Such Fermi-level control caused band-bending between the surface and bulk of the perovskite, which enhanced the hole-extraction from the absorber bulk to the HTM side. As an added benefit, the inorganic passivation layer improved the device light stability. By depositing a thick protection layer on the complete device, a remarkable waterproofing effect was obtained. As a result, an enhancement of VOC and the conversion efficiency from 20.5% to 22.1% was achieved. We revealed these passivation mechanisms and used perhydropoly(silazane) (PHPS) derived silica to control the perovskite surface states.

AB - Surface passivation of the perovskite photo absorber is a key factor to improve the photovoltaic performance. So far robust passivation strategies have not yet been revealed. Here, we demonstrate a successful passivation strategy which controls the Fermi-level of the perovskite surface by improving the surface states. Such Fermi-level control caused band-bending between the surface and bulk of the perovskite, which enhanced the hole-extraction from the absorber bulk to the HTM side. As an added benefit, the inorganic passivation layer improved the device light stability. By depositing a thick protection layer on the complete device, a remarkable waterproofing effect was obtained. As a result, an enhancement of VOC and the conversion efficiency from 20.5% to 22.1% was achieved. We revealed these passivation mechanisms and used perhydropoly(silazane) (PHPS) derived silica to control the perovskite surface states.

UR - http://www.scopus.com/inward/record.url?scp=85082036047&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85082036047&partnerID=8YFLogxK

U2 - 10.1039/c9ee02028d

DO - 10.1039/c9ee02028d

M3 - Article

AN - SCOPUS:85082036047

SN - 1754-5692

VL - 13

SP - 1222

EP - 1230

JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 4

ER -

Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this