Zinc Porphyrin-Ethynylaniline Conjugates as Novel Hole-Transporting Materials for Perovskite Solar Cells with Power Conversion Efficiency of 16.6%

Hsien Hsin Chou; Yu Hsien Chiang; Ming Hsien Li; Po Shen Shen; Hsiang Jung Wei; Chi Lun Mai; Peter Chen; Chen Yu Yeh

doi:10.1021/acsenergylett.6b00432

Zinc Porphyrin-Ethynylaniline Conjugates as Novel Hole-Transporting Materials for Perovskite Solar Cells with Power Conversion Efficiency of 16.6%

Hsien Hsin Chou, Yu Hsien Chiang, Ming Hsien Li, Po Shen Shen, Hsiang Jung Wei, Chi Lun Mai, Peter Chen, Chen Yu Yeh

Department of Photonics

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

89 Citations (Scopus)

Abstract

New zinc porphyrins Y2 and Y2A2 have been utilized in perovskite solar cells specifically as hole-transporting materials (HTMs) rather than photosensitizers. The combination of MAPbI₃ as photosensitizer and porphyrins as HTMs is a potential alternative to well-known MAPbI₃/Spiro-OMeTAD hybrids owing to high performance and versatility toward molecular engineering of porphyrin families. A high efficiency of 16.60% is achieved by n-butyl tethered Y2 HTM (V_OC = 0.99 V; J_SC = 22.82 mA cm^-2) which is comparable to that of Spiro-OMeTAD of 18.03% (V_OC = 1.06 V; J_SC = 22.79 mA cm^-2). Both materials possess similar highest occupied molecular orbital level and the same order of magnitude of hole mobility at 10^-4 cm² V^-1 s^-1. The slightly poorer performance of 10.55% (V_OC = 1.01 V; J_SC = 17.80 mA cm^-2) is obtained for n-dodecyl tethered Y2A2 HTM. This is believed to stem from more surface pinholes when deposited on perovskite leading to an order of magnitude slower mobility.

Original language	English
Pages (from-to)	956-962
Number of pages	7
Journal	ACS Energy Letters
Volume	1
Issue number	5
DOIs	https://doi.org/10.1021/acsenergylett.6b00432
Publication status	Published - 2016 Nov 11

All Science Journal Classification (ASJC) codes

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

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10.1021/acsenergylett.6b00432

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title = "Zinc Porphyrin-Ethynylaniline Conjugates as Novel Hole-Transporting Materials for Perovskite Solar Cells with Power Conversion Efficiency of 16.6%",

abstract = "New zinc porphyrins Y2 and Y2A2 have been utilized in perovskite solar cells specifically as hole-transporting materials (HTMs) rather than photosensitizers. The combination of MAPbI3 as photosensitizer and porphyrins as HTMs is a potential alternative to well-known MAPbI3/Spiro-OMeTAD hybrids owing to high performance and versatility toward molecular engineering of porphyrin families. A high efficiency of 16.60% is achieved by n-butyl tethered Y2 HTM (VOC = 0.99 V; JSC = 22.82 mA cm-2) which is comparable to that of Spiro-OMeTAD of 18.03% (VOC = 1.06 V; JSC = 22.79 mA cm-2). Both materials possess similar highest occupied molecular orbital level and the same order of magnitude of hole mobility at 10-4 cm2 V-1 s-1. The slightly poorer performance of 10.55% (VOC = 1.01 V; JSC = 17.80 mA cm-2) is obtained for n-dodecyl tethered Y2A2 HTM. This is believed to stem from more surface pinholes when deposited on perovskite leading to an order of magnitude slower mobility.",

author = "Chou, {Hsien Hsin} and Chiang, {Yu Hsien} and Li, {Ming Hsien} and Shen, {Po Shen} and Wei, {Hsiang Jung} and Mai, {Chi Lun} and Peter Chen and Yeh, {Chen Yu}",

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AU - Li, Ming Hsien

AU - Shen, Po Shen

AU - Wei, Hsiang Jung

AU - Mai, Chi Lun

AU - Chen, Peter

AU - Yeh, Chen Yu

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Zinc Porphyrin-Ethynylaniline Conjugates as Novel Hole-Transporting Materials for Perovskite Solar Cells with Power Conversion Efficiency of 16.6%

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