Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer

C. Y. Lam; San-Qiang Shi; J. Lu; P. K.L. Chan

doi:10.1115/ES2013-18265

Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer

C. Y. Lam, San-Qiang Shi, J. Lu, P. K.L. Chan

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

The degradation of silicon nanostructure / poly(3,4-ethylenedioxylthiophene : poly(styrenesulphonic acid) (SiNS/ PEDOT:PSS) hybrid solar cell due to the moisture is investigated with an environmental chamber. The unencapsulated devices were tested under different relative humidity (RH) varied from (15% to 100%). Under different RH, the devices show various degradation trends. After 3hrs of storage under 100% RH, the average device power conversion efficiency (PCE) drops from 6.52% to 1.27%. While the device is stored under 15% RH, the averaged PCE just drop from 6.40% to 5.49% and the device at 60% RH degrades from 5.97% to 3.12%. To understand the cause of the device degradation, we compare the ITO conductivity and apply tunneling electron microscopy (TEM) to study the growth of the silicon dioxide layer on the silicon nanostructures. We confirmed that the major cause of the PCE drop in the current devices are due to the decrease of the PEDOT:PSS conductivity and the increase of the interface resistances. By re-depositing the PEDOT:PSS layer onto the degraded device and recycling the Si (and fresh ITO), we demonstrated that the efficiency of the device can be partially recovered (to fully recovered). The current work not only highlighted the importance of the humidity control in these SiNS/PEDOT:PSS hybrid solar cells, but also identified the major causes of the device degradation. The observation has been re-confirmed by recovering the PCE of the degraded device with a fresh PEDOT:PSS layer and a fresh ITO.

Original language	English
Title of host publication	ASME 2013 7th Int. Conf. on Energy Sustainability Collocated with the ASME 2013 Heat Transfer Summer Conf. and the ASME 2013 11th Int. Conf. on Fuel Cell Science, Engineering and Technology, ES 2013
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Print)	9780791855515
DOIs	https://doi.org/10.1115/ES2013-18265
Publication status	Published - 1 Jan 2013
Event	ASME 2013 7th International Conference on Energy Sustainability, ES 2013 Collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology - Minneapolis, MN, United States Duration: 14 Jul 2013 → 19 Jul 2013

Conference

Conference	ASME 2013 7th International Conference on Energy Sustainability, ES 2013 Collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology
Country/Territory	United States
City	Minneapolis, MN
Period	14/07/13 → 19/07/13

ASJC Scopus subject areas

Energy Engineering and Power Technology
Fuel Technology
Renewable Energy, Sustainability and the Environment

UN SDGs

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

More information

10.1115/ES2013-18265

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Lam, C. Y., Shi, S.-Q., Lu, J., & Chan, P. K. L. (2013). Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer. In ASME 2013 7th Int. Conf. on Energy Sustainability Collocated with the ASME 2013 Heat Transfer Summer Conf. and the ASME 2013 11th Int. Conf. on Fuel Cell Science, Engineering and Technology, ES 2013 Article V001T08A001 American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/ES2013-18265

Lam, C. Y. ; Shi, San-Qiang ; Lu, J. et al. / Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer. ASME 2013 7th Int. Conf. on Energy Sustainability Collocated with the ASME 2013 Heat Transfer Summer Conf. and the ASME 2013 11th Int. Conf. on Fuel Cell Science, Engineering and Technology, ES 2013. American Society of Mechanical Engineers (ASME), 2013.

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abstract = "The degradation of silicon nanostructure / poly(3,4-ethylenedioxylthiophene : poly(styrenesulphonic acid) (SiNS/ PEDOT:PSS) hybrid solar cell due to the moisture is investigated with an environmental chamber. The unencapsulated devices were tested under different relative humidity (RH) varied from (15% to 100%). Under different RH, the devices show various degradation trends. After 3hrs of storage under 100% RH, the average device power conversion efficiency (PCE) drops from 6.52% to 1.27%. While the device is stored under 15% RH, the averaged PCE just drop from 6.40% to 5.49% and the device at 60% RH degrades from 5.97% to 3.12%. To understand the cause of the device degradation, we compare the ITO conductivity and apply tunneling electron microscopy (TEM) to study the growth of the silicon dioxide layer on the silicon nanostructures. We confirmed that the major cause of the PCE drop in the current devices are due to the decrease of the PEDOT:PSS conductivity and the increase of the interface resistances. By re-depositing the PEDOT:PSS layer onto the degraded device and recycling the Si (and fresh ITO), we demonstrated that the efficiency of the device can be partially recovered (to fully recovered). The current work not only highlighted the importance of the humidity control in these SiNS/PEDOT:PSS hybrid solar cells, but also identified the major causes of the device degradation. The observation has been re-confirmed by recovering the PCE of the degraded device with a fresh PEDOT:PSS layer and a fresh ITO.",

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publisher = "American Society of Mechanical Engineers (ASME)",

note = "ASME 2013 7th International Conference on Energy Sustainability, ES 2013 Collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology ; Conference date: 14-07-2013 Through 19-07-2013",

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Lam, CY, Shi, S-Q, Lu, J & Chan, PKL 2013, Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer. in ASME 2013 7th Int. Conf. on Energy Sustainability Collocated with the ASME 2013 Heat Transfer Summer Conf. and the ASME 2013 11th Int. Conf. on Fuel Cell Science, Engineering and Technology, ES 2013., V001T08A001, American Society of Mechanical Engineers (ASME), ASME 2013 7th International Conference on Energy Sustainability, ES 2013 Collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology, Minneapolis, MN, United States, 14/07/13. https://doi.org/10.1115/ES2013-18265

Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer. / Lam, C. Y.; Shi, San-Qiang; Lu, J. et al.
ASME 2013 7th Int. Conf. on Energy Sustainability Collocated with the ASME 2013 Heat Transfer Summer Conf. and the ASME 2013 11th Int. Conf. on Fuel Cell Science, Engineering and Technology, ES 2013. American Society of Mechanical Engineers (ASME), 2013. V001T08A001.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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T1 - Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer

AU - Lam, C. Y.

AU - Shi, San-Qiang

AU - Lu, J.

AU - Chan, P. K.L.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - The degradation of silicon nanostructure / poly(3,4-ethylenedioxylthiophene : poly(styrenesulphonic acid) (SiNS/ PEDOT:PSS) hybrid solar cell due to the moisture is investigated with an environmental chamber. The unencapsulated devices were tested under different relative humidity (RH) varied from (15% to 100%). Under different RH, the devices show various degradation trends. After 3hrs of storage under 100% RH, the average device power conversion efficiency (PCE) drops from 6.52% to 1.27%. While the device is stored under 15% RH, the averaged PCE just drop from 6.40% to 5.49% and the device at 60% RH degrades from 5.97% to 3.12%. To understand the cause of the device degradation, we compare the ITO conductivity and apply tunneling electron microscopy (TEM) to study the growth of the silicon dioxide layer on the silicon nanostructures. We confirmed that the major cause of the PCE drop in the current devices are due to the decrease of the PEDOT:PSS conductivity and the increase of the interface resistances. By re-depositing the PEDOT:PSS layer onto the degraded device and recycling the Si (and fresh ITO), we demonstrated that the efficiency of the device can be partially recovered (to fully recovered). The current work not only highlighted the importance of the humidity control in these SiNS/PEDOT:PSS hybrid solar cells, but also identified the major causes of the device degradation. The observation has been re-confirmed by recovering the PCE of the degraded device with a fresh PEDOT:PSS layer and a fresh ITO.

AB - The degradation of silicon nanostructure / poly(3,4-ethylenedioxylthiophene : poly(styrenesulphonic acid) (SiNS/ PEDOT:PSS) hybrid solar cell due to the moisture is investigated with an environmental chamber. The unencapsulated devices were tested under different relative humidity (RH) varied from (15% to 100%). Under different RH, the devices show various degradation trends. After 3hrs of storage under 100% RH, the average device power conversion efficiency (PCE) drops from 6.52% to 1.27%. While the device is stored under 15% RH, the averaged PCE just drop from 6.40% to 5.49% and the device at 60% RH degrades from 5.97% to 3.12%. To understand the cause of the device degradation, we compare the ITO conductivity and apply tunneling electron microscopy (TEM) to study the growth of the silicon dioxide layer on the silicon nanostructures. We confirmed that the major cause of the PCE drop in the current devices are due to the decrease of the PEDOT:PSS conductivity and the increase of the interface resistances. By re-depositing the PEDOT:PSS layer onto the degraded device and recycling the Si (and fresh ITO), we demonstrated that the efficiency of the device can be partially recovered (to fully recovered). The current work not only highlighted the importance of the humidity control in these SiNS/PEDOT:PSS hybrid solar cells, but also identified the major causes of the device degradation. The observation has been re-confirmed by recovering the PCE of the degraded device with a fresh PEDOT:PSS layer and a fresh ITO.

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Lam CY, Shi SQ, Lu J, Chan PKL. Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer. In ASME 2013 7th Int. Conf. on Energy Sustainability Collocated with the ASME 2013 Heat Transfer Summer Conf. and the ASME 2013 11th Int. Conf. on Fuel Cell Science, Engineering and Technology, ES 2013. American Society of Mechanical Engineers (ASME). 2013. V001T08A001 doi: 10.1115/ES2013-18265

Investigating the humidity effect on SiNS/PEDOT:PSS hybrid solar cell and power conversion efficiency recovery by re-deposition of the hole transporting layer

Abstract

Conference

ASJC Scopus subject areas

UN SDGs

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