Large Grain-Based Hole-Blocking Layer-Free Planar-Type Perovskite Solar Cell with Best Efficiency of 18.20

Haejun Yu; Jaehoon Ryu; Jong Woo Lee; Jongmin Roh; Kisu Lee; Juyoung Yun; Jungsup Lee; Yun Ki Kim; Doyk Hwang; Jooyoun Kang; Seong Keun Kim; Jyongsik Jang

doi:10.1021/acsami.6b15710

Large Grain-Based Hole-Blocking Layer-Free Planar-Type Perovskite Solar Cell with Best Efficiency of 18.20

ACS Appl Mater Interfaces. 2017 Mar 8;9(9):8113-8120. doi: 10.1021/acsami.6b15710. Epub 2017 Feb 23.

Authors

Affiliations

¹ World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
² Department of Biophysics and Chemical Biology and Department of Chemistry, Seoul National University , Seoul 151-742, Korea.

PMID: 28211274
DOI: 10.1021/acsami.6b15710

Abstract

There remains tremendous interest in perovskite solar cells (PSCs) in the solar energy field; the certified power conversion efficiency (PCE) now exceeds 20%. Along with research focused on enhancing PCE, studies are also underway concerning PSC commercialization. It is crucial to simplify the fabrication process and reduce the production cost to facilitate commercialization. Herein, we successfully fabricated highly efficient hole-blocking layer (HBL)-free PSCs through vigorously interrupting penetration of hole-transport material (HTM) into fluorine-doped tin oxide by a large grain based-CH₃NH₃PbI₃ (MAPbI₃) film, thereby obtaining a PCE of 18.20%. Our results advance the commercialization of PSCs via a simple fabrication system and a low-cost approach in respect of mass production and recyclability.

Keywords: HTM infiltration; blockage effect; grain size; hole-blocking layer-free; perovskite solar cell; recyclability.