Substantial Improvement of Perovskite Solar Cells Stability by Pinhole-free Hole Transport Layer with Doping Engineering

Overview

Journal Sci Rep

Specialty Science

Date 2015 May 19

PMID 25985417

Citations 11

Authors

Min-Cherl Jung

Sonia R Raga

Luis K Ono

Yabing Qi

Affiliations

Soon will be listed here.

Abstract

We fabricated perovskite solar cells using a triple-layer of n-type doped, intrinsic, and p-type doped 2,2',7,7'-tetrakis(N,N'-di-p-methoxyphenylamine)-9,9'-spirobifluorene (spiro-OMeTAD) (n-i-p) as hole transport layer (HTL) by vacuum evaporation. The doping concentration for n-type doped spiro-OMeTAD was optimized to adjust the highest occupied molecular orbital of spiro-OMeTAD to match the valence band maximum of perovskite for efficient hole extraction while maintaining a high open circuit voltage. Time-dependent solar cell performance measurements revealed significantly improved air stability for perovskite solar cells with the n-i-p structured spiro-OMeTAD HTL showing sustained efficiencies even after 840 h of air exposure.

Citing Articles

Simulation and optimization of 30.17% high performance N-type TCO-free inverted perovskite solar cell using inorganic transport materials.

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New ferrocenyl-containing organic hole-transporting materials for perovskite solar cells in regular (n-i-p) and inverted (p-i-n) architectures.

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Molecularly engineered hole-transport material for low-cost perovskite solar cells.

Pashaei B, Bellani S, Shahroosvand H, Bonaccorso F Chem Sci. 2021; 11(9):2429-2439.

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Thin Thermally Evaporated Organic Hole Transport Layers for Reduced Optical Losses in Substrate-Configuration Perovskite Solar Cells.

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Perovskite Solar Cells toward Eco-Friendly Printing.

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