High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers. / Zhou, Xin; Li, Z.; Deng, Xueshuang et al.
Yn: Nanotechnology, Cyfrol 30, Rhif 44, 445401 , 14.08.2019.

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

HarvardHarvard

Zhou, X, Li, Z, Deng, X, Yan, B, Wang, J, Chen, X & Huang, S 2019, 'High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers', Nanotechnology, cyfrol. 30, rhif 44, 445401 . https://doi.org/10.1088/1361-6528/ab3604

APA

Zhou, X., Li, Z., Deng, X., Yan, B., Wang, J., Chen, X., & Huang, S. (2019). High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers. Nanotechnology, 30(44), Erthygl 445401 . https://doi.org/10.1088/1361-6528/ab3604

CBE

MLA

VancouverVancouver

Zhou X, Li Z, Deng X, Yan B, Wang J, Chen X et al. High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers. Nanotechnology. 2019 Awst 14;30(44):445401 . doi: 10.1088/1361-6528/ab3604

Author

Zhou, Xin ; Li, Z. ; Deng, Xueshuang et al. / High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers. Yn: Nanotechnology. 2019 ; Cyfrol 30, Rhif 44.

RIS

TY - JOUR

T1 - High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers

AU - Zhou, Xin

AU - Li, Z.

AU - Deng, Xueshuang

AU - Yan, Bing

AU - Wang, James

AU - Chen, X.

AU - Huang, Sumei

PY - 2019/8/14

Y1 - 2019/8/14

N2 - We disclose novel photovoltaic device physics and present details of device mechanisms by investigating perovskite solar cells (PSCs) incorporating Cu9S5@SiO2 supraparticles (SUPs) into Spiro-OMeTAD based hole transport layers (HTLs). High quality colloidal Cu9S5 nanocrystals (NCs) were prepared using a hot-injection approach. Multiple Cu9S5 NCs were further embedded in silica to construct a Cu9S5@SiO2 SUP. Cu9S5@SiO2 SUPs were blended into Spiro-OMeTAD based HTLs with different weight ratios. Theoretical and experimental results show that the very strong light scattering or reflecting properties of Cu9S5@SiO2 SUPs blended in the PSC device in a proper proportion distribute to increase the light energy trapped within the device, leading to significant enhancement of light absorption in the active layer. Additionally, the incorporated Cu9S5@SiO2 SUPs can also promote the electrical conductivity and hole-transport capacity of the HTL. Significantly larger conductivity and higher hole injection efficiency were demonstrated in the HTM with the optimal weight ratios of Cu9S5@SiO2 SUPs. As a result, efficient Cu9S5 SUPs based PSC devices were obtained with average power conversion efficiency (PCE) of 18.21% at an optimal weight ratio of Cu9S5 SUPs. Compared with PSC solar cells without Cu9S5@SiO2 SUPs (of which the average PCE is 14.38%), a remarkable enhancement over 26% in average PCE was achieved. This study provides an innovative approach to efficiently promote the performance of PSC devices by employing optically stable, low-cost and green p-type semiconductor SUPs.

AB - We disclose novel photovoltaic device physics and present details of device mechanisms by investigating perovskite solar cells (PSCs) incorporating Cu9S5@SiO2 supraparticles (SUPs) into Spiro-OMeTAD based hole transport layers (HTLs). High quality colloidal Cu9S5 nanocrystals (NCs) were prepared using a hot-injection approach. Multiple Cu9S5 NCs were further embedded in silica to construct a Cu9S5@SiO2 SUP. Cu9S5@SiO2 SUPs were blended into Spiro-OMeTAD based HTLs with different weight ratios. Theoretical and experimental results show that the very strong light scattering or reflecting properties of Cu9S5@SiO2 SUPs blended in the PSC device in a proper proportion distribute to increase the light energy trapped within the device, leading to significant enhancement of light absorption in the active layer. Additionally, the incorporated Cu9S5@SiO2 SUPs can also promote the electrical conductivity and hole-transport capacity of the HTL. Significantly larger conductivity and higher hole injection efficiency were demonstrated in the HTM with the optimal weight ratios of Cu9S5@SiO2 SUPs. As a result, efficient Cu9S5 SUPs based PSC devices were obtained with average power conversion efficiency (PCE) of 18.21% at an optimal weight ratio of Cu9S5 SUPs. Compared with PSC solar cells without Cu9S5@SiO2 SUPs (of which the average PCE is 14.38%), a remarkable enhancement over 26% in average PCE was achieved. This study provides an innovative approach to efficiently promote the performance of PSC devices by employing optically stable, low-cost and green p-type semiconductor SUPs.

KW - Cu9S5 nanocrystal

KW - perovskite solar cell

KW - photovoltaic performance enhancement

KW - supraparticle

U2 - 10.1088/1361-6528/ab3604

DO - 10.1088/1361-6528/ab3604

M3 - Article

VL - 30

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 44

M1 - 445401

ER -