Engineering interface structures between lead halide perovskite and copper phthalocyanine for efficient and stable perovskite solar cells

Cited 133 time in webofscience Cited 0 time in scopus
  • Hit : 20
  • Download : 0
Successful commercialization of perovskite solar cells (PSCs) in the near future will require the fabrication of cells with high efficiency and long-term stability. Despite their good processability at low temperatures, the majority of organic conductors employed in the fabrication of high-efficiency PSCs [e.g., 2,2',7,7'-tetrakis(N,N-di-pmethoxyphenylamine)-9,90-spirobifluorene(spiro-OMeTAD) and poly(triaryl amine) (PTAA)] have low thermal stability. In order to fabricate PSCs with excellent thermal stability, both the constituent material itself and the interface between the constituents must be thermally stable. In this work, we focused on copper phthalocyanine (CuPC) as a model hole-transporting material (HTM) for thermally stable PSCs since CuPC is known to possess excellent thermal stability and interfacial bonding properties. The CuPC-based PSCs recorded a high power conversion efficiency (PCE) of B18% and maintained 97% of their initial efficiency for more than 1000 h of thermal annealing at 85 degrees C. Moreover, the device was stable under thermal cycling tests (50 cycles, -45 to 85 degrees C). The high PCE and high thermal stability observed in the CuPC-PSCs were found to arise as a result of the strong interfacial and conformal coating present on the surface of the perovskite facets, located between CuPC and the perovskite layer. These results will provide an important future direction for the development of highly efficient and thermally stable PSCs.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2017-10
Language
English
Article Type
Article
Citation

ENERGY & ENVIRONMENTAL SCIENCE, v.10, no.10, pp.2109 - 2116

ISSN
1754-5692
DOI
10.1039/c7ee01931a
URI
http://hdl.handle.net/10203/282747
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 133 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0