Large-area 23%-efficient monolithic perovskite/homojunction-silicon tandem solar cell with enhanced UV stability using down-shifting material

Jianghui Zheng; Hamid Mehrvarz; Chwenhaw Liao; Jueming Bing; Xin Cui; Yang Li; Vinicius R. Gonçales; Cho Fai Jonathan Lau; Da Seul Lee; Yong Li; Meng Zhang; Jincheol Kim; Yongyoon Cho; Laura Granados Caro; Shi Tang; Chao Chen; Shujuan Huang; Anita W. Y. Ho-Baillie

doi:10.1021/acsenergylett.9b01783

Large-area 23%-efficient monolithic perovskite/homojunction-silicon tandem solar cell with enhanced UV stability using down-shifting material

Jianghui Zheng^*, Hamid Mehrvarz, Chwenhaw Liao, Jueming Bing, Xin Cui, Yang Li, Vinicius R. Gonçales, Cho Fai Jonathan Lau, Da Seul Lee, Yong Li, Meng Zhang, Jincheol Kim, Yongyoon Cho, Laura Granados Caro, Shi Tang, Chao Chen, Shujuan Huang, Anita W. Y. Ho-Baillie

^*Corresponding author for this work

School of Engineering

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

94 Citations (Scopus)

Abstract

UV-induced degradation and parasitic ultraviolet (UV) absorption by the "sun-facing" carrier transport layer in a perovskite cell hinders stability and electrical performance when the perovskite cell is a top cell for a Si-based tandem. In this work, we tackle these issues by applying textured polydimethylsiloxane (PDMS) films that incorporate a down-shifting material (Ba,Sr)₂SiO₄:Eu²⁺ micron phosphor on the front of monolithic perovskite/silicon tandem cells. This film serves multiple purposes: antireflective control for the top cell, light trapping in the Si cell, as well as absorbing UV and re-emitting green light with high quantum yield. When applied onto a 4 cm² monolithic perovskite/silicon tandem solar cell, the power conversion efficiency was improved from 20.1% (baseline device without any antireflective film) to 22.3% (device with an antireflective film but without the phosphors) and to 23.1% (device with down-shifting phosphor-incorprated antireflective film). The steady-state efficiency of 23.0% and a high fill factor (FF) of 81% achieved by the champion device are the highest values to date for a monolithic perovskite/silicon tandem that uses a homojunction silicon bottom cell. Moreover, results of a continuous UV irradiation test show that this composite down-shifting antireflection film significantly enhances the UV stability for the tandem device. This work demonstrates an elegant approach for improving the efficiency and stability for larger-area perovskite/silicon tandems.

[Graphic presents]

Original language	English
Pages (from-to)	2623-2631
Number of pages	9
Journal	ACS Energy Letters
Volume	4
Issue number	11
Early online date	8 Oct 2019
DOIs	https://doi.org/10.1021/acsenergylett.9b01783
Publication status	Published - 8 Nov 2019

Keywords

EFFICIENCY
VOLTAGE
COST
PDMS

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10.1021/acsenergylett.9b01783

Cite this

Zheng, J., Mehrvarz, H., Liao, C., Bing, J., Cui, X., Li, Y., Gonçales, V. R., Lau, C. F. J., Lee, D. S., Li, Y., Zhang, M., Kim, J., Cho, Y., Granados Caro, L., Tang, S., Chen, C., Huang, S., & Ho-Baillie, A. W. Y. (2019). Large-area 23%-efficient monolithic perovskite/homojunction-silicon tandem solar cell with enhanced UV stability using down-shifting material. ACS Energy Letters, 4(11), 2623-2631. https://doi.org/10.1021/acsenergylett.9b01783

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title = "Large-area 23%-efficient monolithic perovskite/homojunction-silicon tandem solar cell with enhanced UV stability using down-shifting material",

abstract = "UV-induced degradation and parasitic ultraviolet (UV) absorption by the {"}sun-facing{"} carrier transport layer in a perovskite cell hinders stability and electrical performance when the perovskite cell is a top cell for a Si-based tandem. In this work, we tackle these issues by applying textured polydimethylsiloxane (PDMS) films that incorporate a down-shifting material (Ba,Sr)2SiO4:Eu2+ micron phosphor on the front of monolithic perovskite/silicon tandem cells. This film serves multiple purposes: antireflective control for the top cell, light trapping in the Si cell, as well as absorbing UV and re-emitting green light with high quantum yield. When applied onto a 4 cm2 monolithic perovskite/silicon tandem solar cell, the power conversion efficiency was improved from 20.1% (baseline device without any antireflective film) to 22.3% (device with an antireflective film but without the phosphors) and to 23.1% (device with down-shifting phosphor-incorprated antireflective film). The steady-state efficiency of 23.0% and a high fill factor (FF) of 81% achieved by the champion device are the highest values to date for a monolithic perovskite/silicon tandem that uses a homojunction silicon bottom cell. Moreover, results of a continuous UV irradiation test show that this composite down-shifting antireflection film significantly enhances the UV stability for the tandem device. This work demonstrates an elegant approach for improving the efficiency and stability for larger-area perovskite/silicon tandems.[Graphic presents]",

keywords = "EFFICIENCY, VOLTAGE, COST, PDMS",

author = "Jianghui Zheng and Hamid Mehrvarz and Chwenhaw Liao and Jueming Bing and Xin Cui and Yang Li and Gon{\c c}ales, {Vinicius R.} and Lau, {Cho Fai Jonathan} and Lee, {Da Seul} and Yong Li and Meng Zhang and Jincheol Kim and Yongyoon Cho and {Granados Caro}, Laura and Shi Tang and Chao Chen and Shujuan Huang and Ho-Baillie, {Anita W. Y.}",

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doi = "10.1021/acsenergylett.9b01783",

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Zheng, J, Mehrvarz, H, Liao, C, Bing, J, Cui, X, Li, Y, Gonçales, VR, Lau, CFJ, Lee, DS, Li, Y, Zhang, M, Kim, J, Cho, Y, Granados Caro, L, Tang, S, Chen, C, Huang, S & Ho-Baillie, AWY 2019, 'Large-area 23%-efficient monolithic perovskite/homojunction-silicon tandem solar cell with enhanced UV stability using down-shifting material', ACS Energy Letters, vol. 4, no. 11, pp. 2623-2631. https://doi.org/10.1021/acsenergylett.9b01783

TY - JOUR

T1 - Large-area 23%-efficient monolithic perovskite/homojunction-silicon tandem solar cell with enhanced UV stability using down-shifting material

AU - Zheng, Jianghui

AU - Mehrvarz, Hamid

AU - Liao, Chwenhaw

AU - Bing, Jueming

AU - Cui, Xin

AU - Li, Yang

AU - Gonçales, Vinicius R.

AU - Lau, Cho Fai Jonathan

AU - Lee, Da Seul

AU - Li, Yong

AU - Zhang, Meng

AU - Kim, Jincheol

AU - Cho, Yongyoon

AU - Granados Caro, Laura

AU - Tang, Shi

AU - Chen, Chao

AU - Huang, Shujuan

AU - Ho-Baillie, Anita W. Y.

PY - 2019/11/8

Y1 - 2019/11/8

N2 - UV-induced degradation and parasitic ultraviolet (UV) absorption by the "sun-facing" carrier transport layer in a perovskite cell hinders stability and electrical performance when the perovskite cell is a top cell for a Si-based tandem. In this work, we tackle these issues by applying textured polydimethylsiloxane (PDMS) films that incorporate a down-shifting material (Ba,Sr)2SiO4:Eu2+ micron phosphor on the front of monolithic perovskite/silicon tandem cells. This film serves multiple purposes: antireflective control for the top cell, light trapping in the Si cell, as well as absorbing UV and re-emitting green light with high quantum yield. When applied onto a 4 cm2 monolithic perovskite/silicon tandem solar cell, the power conversion efficiency was improved from 20.1% (baseline device without any antireflective film) to 22.3% (device with an antireflective film but without the phosphors) and to 23.1% (device with down-shifting phosphor-incorprated antireflective film). The steady-state efficiency of 23.0% and a high fill factor (FF) of 81% achieved by the champion device are the highest values to date for a monolithic perovskite/silicon tandem that uses a homojunction silicon bottom cell. Moreover, results of a continuous UV irradiation test show that this composite down-shifting antireflection film significantly enhances the UV stability for the tandem device. This work demonstrates an elegant approach for improving the efficiency and stability for larger-area perovskite/silicon tandems.[Graphic presents]

AB - UV-induced degradation and parasitic ultraviolet (UV) absorption by the "sun-facing" carrier transport layer in a perovskite cell hinders stability and electrical performance when the perovskite cell is a top cell for a Si-based tandem. In this work, we tackle these issues by applying textured polydimethylsiloxane (PDMS) films that incorporate a down-shifting material (Ba,Sr)2SiO4:Eu2+ micron phosphor on the front of monolithic perovskite/silicon tandem cells. This film serves multiple purposes: antireflective control for the top cell, light trapping in the Si cell, as well as absorbing UV and re-emitting green light with high quantum yield. When applied onto a 4 cm2 monolithic perovskite/silicon tandem solar cell, the power conversion efficiency was improved from 20.1% (baseline device without any antireflective film) to 22.3% (device with an antireflective film but without the phosphors) and to 23.1% (device with down-shifting phosphor-incorprated antireflective film). The steady-state efficiency of 23.0% and a high fill factor (FF) of 81% achieved by the champion device are the highest values to date for a monolithic perovskite/silicon tandem that uses a homojunction silicon bottom cell. Moreover, results of a continuous UV irradiation test show that this composite down-shifting antireflection film significantly enhances the UV stability for the tandem device. This work demonstrates an elegant approach for improving the efficiency and stability for larger-area perovskite/silicon tandems.[Graphic presents]

KW - EFFICIENCY

KW - VOLTAGE

KW - COST

KW - PDMS

UR - http://www.scopus.com/inward/record.url?scp=85073256447&partnerID=8YFLogxK

U2 - 10.1021/acsenergylett.9b01783

DO - 10.1021/acsenergylett.9b01783

M3 - Article

AN - SCOPUS:85073256447

SN - 2380-8195

VL - 4

SP - 2623

EP - 2631

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 11

ER -

Large-area 23%-efficient monolithic perovskite/homojunction-silicon tandem solar cell with enhanced UV stability using down-shifting material

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