2D black phosphorous nanosheets as a hole transporting material in perovskite solar cells

Subas Kumar Muduli; Eswaraiah Varrla; Sneha Avinash Kulkarni; Guifang Han; Krishnamoorthy Thirumal; Ovadia Lev; Subodh Mhaisalkar; Nripan Mathews

doi:https://doi.org/10.1016/j.jpowsour.2017.10.018

2D black phosphorous nanosheets as a hole transporting material in perovskite solar cells

Subas Kumar Muduli, Eswaraiah Varrla, Sneha Avinash Kulkarni, Guifang Han, Krishnamoorthy Thirumal, Ovadia Lev, Subodh Mhaisalkar, Nripan Mathews

Institute of Chemistry

The Hebrew University of Jerusalem

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

Abstract

We demonstrate for the first-time liquid exfoliated few layers of 2D Black phosphorus (BP) nanosheets as a hole transporting material (HTM) for perovskite based solar cells. The photoelectron spectroscopy in air (PESA) measurements confirm the low laying valence band level of BP nanosheets (−5.2 eV) favourable for hole injection from CH₃NH₃PbI₃ (MAPbI₃). Our results show that ∼25% improvement in power conversion efficiency (PCE) of η = 16.4% for BP nanosheets + Spiro-OMeTAD as an HTM as compared to spiro-OMeTAD (η = 13.1%). When BP nanosheets are exclusively utilised as an HTM, a PCE of η = 7.88% is noted, an improvement over the 4% PCE values observed for HTM free devices. Photoluminescence (PL) quenching of MAPbI₃ and impedance measurements further confirm the charge extraction ability of BP nanosheets. The structural and optical characterization of liquid exfoliated BP nanosheets is discussed in detail with the aid of transmission electron microscopy, Raman spectroscopy, absorption spectroscopy and photo-electron spectroscopy.

Original language	English
Pages (from-to)	156-161
Number of pages	6
Journal	Journal of Power Sources
Volume	371
DOIs	https://doi.org/10.1016/j.jpowsour.2017.10.018
State	Published - 15 Dec 2017

Keywords

Black phosphorus (BP)
HTM
MAPbI
Perovskite
Solar cells

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

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https://doi.org/10.1016/j.jpowsour.2017.10.018

Cite this

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title = "2D black phosphorous nanosheets as a hole transporting material in perovskite solar cells",

abstract = "We demonstrate for the first-time liquid exfoliated few layers of 2D Black phosphorus (BP) nanosheets as a hole transporting material (HTM) for perovskite based solar cells. The photoelectron spectroscopy in air (PESA) measurements confirm the low laying valence band level of BP nanosheets (−5.2 eV) favourable for hole injection from CH3NH3PbI3 (MAPbI3). Our results show that ∼25% improvement in power conversion efficiency (PCE) of η = 16.4% for BP nanosheets + Spiro-OMeTAD as an HTM as compared to spiro-OMeTAD (η = 13.1%). When BP nanosheets are exclusively utilised as an HTM, a PCE of η = 7.88% is noted, an improvement over the 4% PCE values observed for HTM free devices. Photoluminescence (PL) quenching of MAPbI3 and impedance measurements further confirm the charge extraction ability of BP nanosheets. The structural and optical characterization of liquid exfoliated BP nanosheets is discussed in detail with the aid of transmission electron microscopy, Raman spectroscopy, absorption spectroscopy and photo-electron spectroscopy.",

keywords = "Black phosphorus (BP), HTM, MAPbI, Perovskite, Solar cells",

author = "Muduli, {Subas Kumar} and Eswaraiah Varrla and Kulkarni, {Sneha Avinash} and Guifang Han and Krishnamoorthy Thirumal and Ovadia Lev and Subodh Mhaisalkar and Nripan Mathews",

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year = "2017",

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day = "15",

doi = "https://doi.org/10.1016/j.jpowsour.2017.10.018",

language = "الإنجليزيّة",

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TY - JOUR

T1 - 2D black phosphorous nanosheets as a hole transporting material in perovskite solar cells

AU - Muduli, Subas Kumar

AU - Varrla, Eswaraiah

AU - Kulkarni, Sneha Avinash

AU - Han, Guifang

AU - Thirumal, Krishnamoorthy

AU - Lev, Ovadia

AU - Mhaisalkar, Subodh

AU - Mathews, Nripan

PY - 2017/12/15

Y1 - 2017/12/15

N2 - We demonstrate for the first-time liquid exfoliated few layers of 2D Black phosphorus (BP) nanosheets as a hole transporting material (HTM) for perovskite based solar cells. The photoelectron spectroscopy in air (PESA) measurements confirm the low laying valence band level of BP nanosheets (−5.2 eV) favourable for hole injection from CH3NH3PbI3 (MAPbI3). Our results show that ∼25% improvement in power conversion efficiency (PCE) of η = 16.4% for BP nanosheets + Spiro-OMeTAD as an HTM as compared to spiro-OMeTAD (η = 13.1%). When BP nanosheets are exclusively utilised as an HTM, a PCE of η = 7.88% is noted, an improvement over the 4% PCE values observed for HTM free devices. Photoluminescence (PL) quenching of MAPbI3 and impedance measurements further confirm the charge extraction ability of BP nanosheets. The structural and optical characterization of liquid exfoliated BP nanosheets is discussed in detail with the aid of transmission electron microscopy, Raman spectroscopy, absorption spectroscopy and photo-electron spectroscopy.

AB - We demonstrate for the first-time liquid exfoliated few layers of 2D Black phosphorus (BP) nanosheets as a hole transporting material (HTM) for perovskite based solar cells. The photoelectron spectroscopy in air (PESA) measurements confirm the low laying valence band level of BP nanosheets (−5.2 eV) favourable for hole injection from CH3NH3PbI3 (MAPbI3). Our results show that ∼25% improvement in power conversion efficiency (PCE) of η = 16.4% for BP nanosheets + Spiro-OMeTAD as an HTM as compared to spiro-OMeTAD (η = 13.1%). When BP nanosheets are exclusively utilised as an HTM, a PCE of η = 7.88% is noted, an improvement over the 4% PCE values observed for HTM free devices. Photoluminescence (PL) quenching of MAPbI3 and impedance measurements further confirm the charge extraction ability of BP nanosheets. The structural and optical characterization of liquid exfoliated BP nanosheets is discussed in detail with the aid of transmission electron microscopy, Raman spectroscopy, absorption spectroscopy and photo-electron spectroscopy.

KW - Black phosphorus (BP)

KW - HTM

KW - MAPbI

KW - Perovskite

KW - Solar cells

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U2 - https://doi.org/10.1016/j.jpowsour.2017.10.018

DO - https://doi.org/10.1016/j.jpowsour.2017.10.018

M3 - مقالة

SN - 0378-7753

VL - 371

SP - 156

EP - 161

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

2D black phosphorous nanosheets as a hole transporting material in perovskite solar cells

Abstract

Keywords

All Science Journal Classification (ASJC) codes

UN SDGs

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