"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Fabrication of perovskite solar cells in ambient air by employing poly (triarylamine) as the hole transport layer

GUILIN LIU1,2,3,* , XI XI1, WEIFU DONG2,3

Affiliation

  1. School of Science, Jiangnan University, WuXi, China, 214122
  2. School of Chemical and Materials Engine ering, Jiangnan University , Wuxi , China, 214122
  3. National International Joint Research Center for Photoresponse Functional Molecular Materials Jiangnan University, Wuxi , China, 2 14122

Abstract

Poly --(triarylamine) ( was employed as the hole transport layer s (HTL s ) to fabricate perovskite solar cells ( in ambient air wherein the temperature and relative humidity were controlled at 30 and 30%, respectively. In comparison to PSC s based on spiro OMeTAD HTL s the statistical power conversion efficiency (PC E) of ambient air fabricated solar cells was close to solar cell s which were fabricated in nitrogen . It indicate d the PTAA layer s w ere less sensitive in air than that of spiro OMeTAD during the fabrication process The PCE was around 12% in average for PS C s with PTAA HTLs. Additionally , i t was found that oxygen aging can further improve the PCE to 1 4 % in However, though the stability of HTLs were improved by employing PTAA, the perovskite crystals limits the long term stability of perovskite solar cells. According to our experiments, after 2 weeks degradation in air, the PCE of all PSCs were dropped due to the decomposition of perovskite crystals. As a result, additional encapsulation treatments are worthy investigated for the long term stability of perovskite solar cells..

Keywords

Solar energy materials H ole transport layer A mbient air.

Citation

GUILIN LIU, XI XI, WEIFU DONG, Fabrication of perovskite solar cells in ambient air by employing poly (triarylamine) as the hole transport layer, Optoelectronics and Advanced Materials - Rapid Communications, 12, 11-12, November-December 2018, pp.687-693 (2018).

Submitted at: Feb. 27, 2018

Accepted at: Nov. 29, 2018