100ºC Thermal Stability of printable Organo-Inorganic Perovskite Solar Cells using Porous Carbon Counter Electrode
Hiroyuki Kanda a, Tomoya Nishina a, Gai Mizuta a, Seigo Ito a, Shusaku Kanaya a, Ajay Kumar Baranwal a, T. A. Nirmal Peiris a b, Hiroshi Segawa b, Tsutomu Miyasaka c
a University of Hyogo, 2167 Shosha, Himeji, 671, Japan
b Toin University of Yokohama, 1614 Kurogane-cho, Aoba, Yokohama, 2258503, Japan
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Yokohama-shi, Japan, 2017 February 2nd - 4th
Organizers: Tsutomu Miyasaka and Iván Mora-Seró
Oral, Ajay Kumar Baranwal, presentation 125
Publication date: 7th November 2016

Organo-lead triiodide perovskite (CH3NH3PbI3) based solar cells have drawn significant attention from the solar research community in recent years due to its prompt jump in photovoltaic performance from mere 3.8% to over 20% within a short time scale. [1] The ease of fabrication and the economical prospect of this solution based technology with cheap materials have attained a milestone to be used as next generation solar cells, which could compete with currently used silicon-based solar cells.

However, the successful implementation of these photovoltaic devices to the subsequent level in stable and cost-effective operation remains a challenge. The main concern lies with stability issue emanating particularly from temperature and humidity. [2]

The monolithic type three-layered perovskite solar cells engage earth abundant porous carbon based back contacts; have attracted much owing to its ease of fabrication and low production cost. The fabrication of the three layer printable perovskite solar cells in the structure FTO glass/ cp TiO2/ mp TiO2/ mp ZrO2/ porous carbon/ infiltrated perovskite (CH3NH3PbI3) were implemented. The sealing protocol with the effect in UV curable gel was tested against thermal shock on fabricated devices at several temperature ranges. The PCE of bare and over sealed devices have observed the degraded behavior with the time. On the other hand, side sealed devices were able to sustain the prolonged thermal shock test while maintaining the initial PCEs. [3] The 100 °C thermal shock test and its effect on stabilized PCE over 1500 hrs are observed with a novel sealing procedure and the further stability study will be carried out in the conference.  

References

[1]     W.-S Yang, J.-H. Noh, N.-J Jeon, Y.-C. Kim, S. Ryu, J. Seo, S.I. Seok, Science, 2015, 348,              1234–1237.

[2]     D. Wang, M. Wright, N. K. Elumalai, A. Uddin,  Sol. Energy Mater. Sol. Cells (2016), 147,                255-275.

[3]     A. K. Baranwal, S. Kanaya, T. A. N. Peiris, G. Mizuta, T. Nishina, H. Kanda, T.Miyasaka, H.              Segawa, S. Ito,  ChemSusChem, 2016, 9 (18), 2604-2608.



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