Minimized surface deficiency on wide-bandgap perovskite for efficient indoor photovoltaics

Zhen LI; Jie ZHANG; Shengfan WU; Xiang DENG; Fengzhu LI; Danjun Liu; Chia‐Chen C. LEE; Francis LIN; Dangyuan LEI; Chu Chen CHUEH; Zonglong ZHU; Alex K.Y. JEN

doi:10.1016/j.nanoen.2020.105377

Minimized surface deficiency on wide-bandgap perovskite for efficient indoor photovoltaics

Zhen LI, Jie ZHANG, Shengfan WU, Xiang DENG, Fengzhu LI, Danjun Liu, Chia‐Chen C. LEE, Francis LIN, Dangyuan LEI, Chu Chen CHUEH, Zonglong ZHU^*, Alex K.Y. JEN^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

83 Citations (Scopus)

Abstract

Wide-bandgap perovskite solar cells (PVSCs) possess significant potential in providing reliable power sources for applications in the Internet of Things (IoT) ecosystem under indoor light illumination. However, the wide-bandgap PVSCs usually suffer from photo-induced phase segregation and non-radiative energy loss caused by the Shockley-Read-Hall (SRH) type trap-assisted recombination at the interfaces in the devices. To address these issues, a simple strategy by applying phenethylammonium halides to reduce the energy loss and suppress the phase segregation of wide-bandgap PVSCs is developed. The devices incorporated with phenethylammonium chloride (PEACl) is revealed to achieve a high open-circuit voltage (V_OC) of 1.26 V, leading to a merit power conversion efficiency (PCE) of 18.3%, which is the best performance among the inverted wide-bandgap PVSCs (~1.75 eV) under one sun illumination. Meanwhile, the photovoltaic performance of the device is also significantly enhanced, especially under a white light-emitting diode (LED) with an illumination of 1000 lux, showing a PCE of 35.6% with a high V_OC of 1.08 V. Impressively, the device delivers a minimum energy loss of 670 meV, which is among the smallest value reported for perovskite-based indoor photovoltaics.

Original language	English
Article number	105377
Journal	Nano Energy
Volume	78
Early online date	21 Sept 2020
DOIs	https://doi.org/10.1016/j.nanoen.2020.105377
Publication status	Published - Dec 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd

Funding

The authors thank D. Shen and Prof. C. S. Lee from Department of Chemistry, City University of Hong Kong, for their kind help with UPS measurements. The work was supported by APRC Grant of the City University of Hong Kong (9380086, 9610421), Teaching Start-Up Grant of City University of Hong Kong (6000672), Innovation and Technology Support Programme (ITS/497/18FP, GHP/021/18SZ), Guangdong-Hong Kong-Macao joint laboratory of optoelectronic and magnetic functional materials (No. 2019B121205002), the Office of Naval Research (N00014-20-1-2191), the ECS grant (CityU 21301319) and Collaborative Research Fund grant (C5037-18G) from the Research Grants Council of Hong Kong, Natural Science Foundation of Guangdong Province (2019A1515010761), Guangdong Major Project of Basic and Applied Basic Research (No. 2019B030302007), and the Ministry of Science and Technology in Taiwan (MOST 109-2628-E-002-008-MY3).

Keywords

Defect passivation
Indoor light application
Minimized energy loss
Phase segregation suppression
Wide-bandgap perovskite photovoltaic

UN SDGs

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

Access to Document

10.1016/j.nanoen.2020.105377

Cite this

@article{ebeb98f8dc06446885d60ec7c6a81e75,

title = "Minimized surface deficiency on wide-bandgap perovskite for efficient indoor photovoltaics",

abstract = "Wide-bandgap perovskite solar cells (PVSCs) possess significant potential in providing reliable power sources for applications in the Internet of Things (IoT) ecosystem under indoor light illumination. However, the wide-bandgap PVSCs usually suffer from photo-induced phase segregation and non-radiative energy loss caused by the Shockley-Read-Hall (SRH) type trap-assisted recombination at the interfaces in the devices. To address these issues, a simple strategy by applying phenethylammonium halides to reduce the energy loss and suppress the phase segregation of wide-bandgap PVSCs is developed. The devices incorporated with phenethylammonium chloride (PEACl) is revealed to achieve a high open-circuit voltage (VOC) of 1.26 V, leading to a merit power conversion efficiency (PCE) of 18.3%, which is the best performance among the inverted wide-bandgap PVSCs (~1.75 eV) under one sun illumination. Meanwhile, the photovoltaic performance of the device is also significantly enhanced, especially under a white light-emitting diode (LED) with an illumination of 1000 lux, showing a PCE of 35.6% with a high VOC of 1.08 V. Impressively, the device delivers a minimum energy loss of 670 meV, which is among the smallest value reported for perovskite-based indoor photovoltaics.",

keywords = "Defect passivation, Indoor light application, Minimized energy loss, Phase segregation suppression, Wide-bandgap perovskite photovoltaic",

author = "Zhen LI and Jie ZHANG and Shengfan WU and Xiang DENG and Fengzhu LI and Danjun Liu and LEE, {Chia‐Chen C.} and Francis LIN and Dangyuan LEI and CHUEH, {Chu Chen} and Zonglong ZHU and JEN, {Alex K.Y.}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = dec,

doi = "10.1016/j.nanoen.2020.105377",

language = "English",

volume = "78",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Minimized surface deficiency on wide-bandgap perovskite for efficient indoor photovoltaics

AU - LI, Zhen

AU - ZHANG, Jie

AU - WU, Shengfan

AU - DENG, Xiang

AU - LI, Fengzhu

AU - Liu, Danjun

AU - LEE, Chia‐Chen C.

AU - LIN, Francis

AU - LEI, Dangyuan

AU - CHUEH, Chu Chen

AU - ZHU, Zonglong

AU - JEN, Alex K.Y.

PY - 2020/12

Y1 - 2020/12

N2 - Wide-bandgap perovskite solar cells (PVSCs) possess significant potential in providing reliable power sources for applications in the Internet of Things (IoT) ecosystem under indoor light illumination. However, the wide-bandgap PVSCs usually suffer from photo-induced phase segregation and non-radiative energy loss caused by the Shockley-Read-Hall (SRH) type trap-assisted recombination at the interfaces in the devices. To address these issues, a simple strategy by applying phenethylammonium halides to reduce the energy loss and suppress the phase segregation of wide-bandgap PVSCs is developed. The devices incorporated with phenethylammonium chloride (PEACl) is revealed to achieve a high open-circuit voltage (VOC) of 1.26 V, leading to a merit power conversion efficiency (PCE) of 18.3%, which is the best performance among the inverted wide-bandgap PVSCs (~1.75 eV) under one sun illumination. Meanwhile, the photovoltaic performance of the device is also significantly enhanced, especially under a white light-emitting diode (LED) with an illumination of 1000 lux, showing a PCE of 35.6% with a high VOC of 1.08 V. Impressively, the device delivers a minimum energy loss of 670 meV, which is among the smallest value reported for perovskite-based indoor photovoltaics.

AB - Wide-bandgap perovskite solar cells (PVSCs) possess significant potential in providing reliable power sources for applications in the Internet of Things (IoT) ecosystem under indoor light illumination. However, the wide-bandgap PVSCs usually suffer from photo-induced phase segregation and non-radiative energy loss caused by the Shockley-Read-Hall (SRH) type trap-assisted recombination at the interfaces in the devices. To address these issues, a simple strategy by applying phenethylammonium halides to reduce the energy loss and suppress the phase segregation of wide-bandgap PVSCs is developed. The devices incorporated with phenethylammonium chloride (PEACl) is revealed to achieve a high open-circuit voltage (VOC) of 1.26 V, leading to a merit power conversion efficiency (PCE) of 18.3%, which is the best performance among the inverted wide-bandgap PVSCs (~1.75 eV) under one sun illumination. Meanwhile, the photovoltaic performance of the device is also significantly enhanced, especially under a white light-emitting diode (LED) with an illumination of 1000 lux, showing a PCE of 35.6% with a high VOC of 1.08 V. Impressively, the device delivers a minimum energy loss of 670 meV, which is among the smallest value reported for perovskite-based indoor photovoltaics.

KW - Defect passivation

KW - Indoor light application

KW - Minimized energy loss

KW - Phase segregation suppression

KW - Wide-bandgap perovskite photovoltaic

UR - http://www.scopus.com/inward/record.url?scp=85091206671&partnerID=8YFLogxK

U2 - 10.1016/j.nanoen.2020.105377

DO - 10.1016/j.nanoen.2020.105377

M3 - Journal Article (refereed)

SN - 2211-2855

VL - 78

JO - Nano Energy

JF - Nano Energy

M1 - 105377

ER -

Minimized surface deficiency on wide-bandgap perovskite for efficient indoor photovoltaics

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this