Effects of iodine doping on carrier behavior at the interface of perovskite crystals: Efficiency and stability

Guilin Liu; Lang Liu; Xiuxiu Niu; Huanping Zhou; Qi Chen

doi:10.3390/cryst8050185

Effects of iodine doping on carrier behavior at the interface of perovskite crystals: Efficiency and stability

Guilin Liu, Lang Liu, Xiuxiu Niu, Huanping Zhou, Qi Chen^*

^*Corresponding author for this work

Advanced Research Institute of Multidisciplinary Science

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

11 Citations (Scopus)

Abstract

The interface related to the polycrystalline hybrid perovskite thin film plays an essential role in the resulting device performance. Iodine was employed as an additive to modify the interface between perovskite and spiro-OMeTAD hole transport layer. The oxidation ability of iodine significantly improved the efficiency of charge extraction for perovskite solar cells. It reveals that the Open Circuit Voltage (V_oc) and Fill Factor (FF) of perovskite solar cells were improved substantially due to the dopant, which is mainly attributed to the interfacial improvement. It was found that the best efficiency of the devices was achieved when the dopant of iodine was in equivalent mole concentration with that of spiro-OMeTAD. Moreover, the long-term stability of the corresponding device was investigated.

Original language	English
Article number	185
Journal	Crystals
Volume	8
Issue number	5
DOIs	https://doi.org/10.3390/cryst8050185
Publication status	Published - May 2018

Keywords

Interfacial interaction
Iodine doping
Perovskite solar cells

Access to Document

10.3390/cryst8050185

Cite this

@article{624a720d61344bb7bc69d3c12b643eab,

title = "Effects of iodine doping on carrier behavior at the interface of perovskite crystals: Efficiency and stability",

abstract = "The interface related to the polycrystalline hybrid perovskite thin film plays an essential role in the resulting device performance. Iodine was employed as an additive to modify the interface between perovskite and spiro-OMeTAD hole transport layer. The oxidation ability of iodine significantly improved the efficiency of charge extraction for perovskite solar cells. It reveals that the Open Circuit Voltage (Voc) and Fill Factor (FF) of perovskite solar cells were improved substantially due to the dopant, which is mainly attributed to the interfacial improvement. It was found that the best efficiency of the devices was achieved when the dopant of iodine was in equivalent mole concentration with that of spiro-OMeTAD. Moreover, the long-term stability of the corresponding device was investigated.",

keywords = "Interfacial interaction, Iodine doping, Perovskite solar cells",

author = "Guilin Liu and Lang Liu and Xiuxiu Niu and Huanping Zhou and Qi Chen",

note = "Publisher Copyright: {\textcopyright} 2018 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2018",

month = may,

doi = "10.3390/cryst8050185",

language = "English",

volume = "8",

journal = "Crystals",

issn = "2073-4352",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "5",

}

TY - JOUR

T1 - Effects of iodine doping on carrier behavior at the interface of perovskite crystals

T2 - Efficiency and stability

AU - Liu, Guilin

AU - Liu, Lang

AU - Niu, Xiuxiu

AU - Zhou, Huanping

AU - Chen, Qi

PY - 2018/5

Y1 - 2018/5

N2 - The interface related to the polycrystalline hybrid perovskite thin film plays an essential role in the resulting device performance. Iodine was employed as an additive to modify the interface between perovskite and spiro-OMeTAD hole transport layer. The oxidation ability of iodine significantly improved the efficiency of charge extraction for perovskite solar cells. It reveals that the Open Circuit Voltage (Voc) and Fill Factor (FF) of perovskite solar cells were improved substantially due to the dopant, which is mainly attributed to the interfacial improvement. It was found that the best efficiency of the devices was achieved when the dopant of iodine was in equivalent mole concentration with that of spiro-OMeTAD. Moreover, the long-term stability of the corresponding device was investigated.

AB - The interface related to the polycrystalline hybrid perovskite thin film plays an essential role in the resulting device performance. Iodine was employed as an additive to modify the interface between perovskite and spiro-OMeTAD hole transport layer. The oxidation ability of iodine significantly improved the efficiency of charge extraction for perovskite solar cells. It reveals that the Open Circuit Voltage (Voc) and Fill Factor (FF) of perovskite solar cells were improved substantially due to the dopant, which is mainly attributed to the interfacial improvement. It was found that the best efficiency of the devices was achieved when the dopant of iodine was in equivalent mole concentration with that of spiro-OMeTAD. Moreover, the long-term stability of the corresponding device was investigated.

KW - Interfacial interaction

KW - Iodine doping

KW - Perovskite solar cells

UR - http://www.scopus.com/inward/record.url?scp=85047817474&partnerID=8YFLogxK

U2 - 10.3390/cryst8050185

DO - 10.3390/cryst8050185

M3 - Article

AN - SCOPUS:85047817474

SN - 2073-4352

VL - 8

JO - Crystals

JF - Crystals

IS - 5

M1 - 185

ER -

Effects of iodine doping on carrier behavior at the interface of perovskite crystals: Efficiency and stability

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this