PTB7 as an Ink-Additive for Spin-Coated Versus Inkjet-Printed Perovskite Solar Cells

被引：18

作者：

Pathak, Chandra Shakher ^{[2
]}

Paramasivam, Gopinath ^{[1
]}

Mathies, Florian ^{[1
]}

Hirselandt, Katrin ^{[1
]}

Schroeder, Vincent ^{[1
]}

Maus, Oliver ^{[1
]}

Dagar, Janardan ^{[1
]}

Klimm, Carola ^{[1
]}

Unger, Eva ^{[1
,3
]}

Visoly-Fisher, Iris ^{[2
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie GmbH, HySPRINT Innovat Lab, D-12489 Berlin, Germany

[2] Ben Gurion Univ Negev, Ben Gurion Natl Solar Energy Ctr, Swiss Inst Dryland Environm & Energy Res, Jacob Blaustein Inst Desert Res,Dept Solar Energy, IL-8499000 Midreshet Ben Gurion, Israel

[3] Lund Univ, Chem Phys & Nano Lund, S-22100 Lund, Sweden

来源：

ACS APPLIED ENERGY MATERIALS | 2022年 / 5卷 / 04期

基金：

以色列科学基金会;

关键词：

inkjet printing; perovskite; polymer perovskite; PTB7; additive; HALIDE PEROVSKITES; HIGH-EFFICIENCY; HIGHLY EFFICIENT; STABILITY; PERFORMANCE; CRYSTALLIZATION; PASSIVATION; ACID;

D O I：

10.1021/acsaem.1c03262

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on the fabrication and optimization of Cs(0.05)FA(0.79)MA(0.16)Pb-20 (Br0.17I0.83)(3) perovskite solar cells from inks containing the polymer PTB7 as an additive, comparing spin-coating and inkjet printing as deposition methods. Spincoated devices exhibited a maximum power conversion efficiency of 17.75% but showed little difference between samples with and without the polymer ink additive. For inkjet-printed devices, the combined optimization of printing parameters and the amount of the polymer additive in the precursor ink enabled a perovskite layer with increased quality. In comparison, devices with added PTB7 improved the power conversion efficiency to 10.35% as compared to 8.0% for cells prepared without the polymer additive. The effect is attributed to the modified crystallization dynamics of the perovskite layer by the PTB7 addition after inkjet printing and improved quality of the resulting perovskite layers. We found that the effect of the polymer additive on film formation in spin-coated samples was obscured when using an antisolvent drip, but the incorporation of PTB7 has a positive effect on the opto-electronic quality of thin films, indicated by the increased grain size and the photoluminescence quantum yield. Our results emphasize the technological potential of polymer additives in perovskite precursor inks when using scalable manufacturing processes, such as inkjet printing, where the control and induction of controlled crystallization are more difficult to implement by additional quenching steps.

引用

页码：4085 / 4095

页数：11

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