Low Temperature VOx Hole Transport Layer for Enhancing the Performance of Carbon-Based Perovskite Solar Cells

2021 ◽  
Vol 16 (2) ◽  
pp. 273-280
Author(s):  
Ruiyuan Hu ◽  
Yang Li ◽  
Zhongbao Que ◽  
Shuaibo Zhai ◽  
Yifei Feng ◽  
...  

Carbon electrode based perovskite solar cells (PSCs) have attracted more attention owing to low product cost, long term stability and simple fabrication technology. Usually carbon electrode based PSCs are fabricated without hole transport layer, which results in slow development in photovoltaic performance and practical application. In this work, we synthesized p-type semiconductor VOx films via low temperature solution process. And the prepared VOx film was introduced into the carbon electrode based PSCs as hole transport layer, which is highly beneficial to further enhance the power conversion efficiencies. Here, we have demonstrated that solution processed VOx film is suitable to be the hole transport layer for PSCs based on low temperature carbon electrode. With the optimized layers of VOx, carbon electrode based PSCs with VOx exhibit enhanced photovoltaic performance compared with hole transport layer free PSCs. In the meanwhile, carbon electrode based PSCs with VOx hole transport layer have long term stability.

2017 ◽  
Vol 5 (39) ◽  
pp. 10280-10287 ◽  
Author(s):  
Cong Chen ◽  
Guang Yang ◽  
Junjie Ma ◽  
Xiaolu Zheng ◽  
Zhiliang Chen ◽  
...  

We showed that perovskite solar cells employing Li-treated NiOxas a hole transport layer demonstrated excellent photovoltaic performance, and obtained a power conversion efficiency of up to 18.03%. In addition, the device possessed good long-term stability.


2019 ◽  
Vol 7 (14) ◽  
pp. 8073-8077 ◽  
Author(s):  
Iwan Zimmermann ◽  
Paul Gratia ◽  
David Martineau ◽  
Giulia Grancini ◽  
Jean-Nicolas Audinot ◽  
...  

Improved charge extraction in carbon-based fully printable hole transport layer-free mesoscopic perovskite solar cells with excellent long-term stability.


2022 ◽  
Author(s):  
Maria Bidikoudi ◽  
Vassilios Dracopoulos ◽  
Elias Stathatos

A study on the optimization of methylammonium (MA) free perovskites composition, targeted for their application in hole transport layer (HTL) free perovskite solar cells with a carbon electrode (C-PSCs) is...


Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 978
Author(s):  
Chaoqun Lu ◽  
Weijia Zhang ◽  
Zhaoyi Jiang ◽  
Yulong Zhang ◽  
Cong Ni

The hole transport layer (HTL) is one of the main factors affecting the efficiency and stability of perovskite solar cells (PSCs). However, obtaining HTLs with the desired properties through current preparation techniques remains a challenge. In the present study, we propose a new method which can be used to achieve a double-layer HTL, by inserting a CuI layer between the perovskite layer and Spiro-OMeTAD layer via a solution spin coating process. The CuI layer deposited on the surface of the perovskite film directly covers the rough perovskite surface, covering the surface defects of the perovskite, while a layer of CuI film avoids the defects caused by Spiro-OMetad pinholes. The double-layer HTLs improve roughness and reduce charge recombination of the Spiro-OMeTAD layer, thereby resulting in superior hole extraction capabilities and faster hole mobility. The CuI/Spiro-OMeTAD double-layer HTLs-based devices were prepared in N2 gloveboxes and obtained an optimized PCE (photoelectric conversion efficiency) of 17.44%. Furthermore, their stability was improved due to the barrier effect of the inorganic CuI layer on the entry of air and moisture into the perovskite layer. The results demonstrate that another deposited CuI film is a promising method for realizing high-performance and air-stable PSCs.


2020 ◽  
Vol 11 (14) ◽  
pp. 5563-5568
Author(s):  
Marina M. Tepliakova ◽  
Aleksandra N. Mikheeva ◽  
Lyubov A. Frolova ◽  
Aleksandra G. Boldyreva ◽  
Aly Elakshar ◽  
...  

Nanoscale ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 4236-4243 ◽  
Author(s):  
Di Huang ◽  
Tenghooi Goh ◽  
Jaemin Kong ◽  
Yifan Zheng ◽  
Suling Zhao ◽  
...  

2021 ◽  
Author(s):  
Bo-Rong Jheng ◽  
Pei-Ting Chiu ◽  
Sheng-Hsiung Yang ◽  
Yung-Liang Tong

Abstract Inorganic metal oxides with the merits of high carrier transport capability, low cost and superior chemical stability have largely served as the hole transport layer (HTL) in perovskite solar cells (PSCs) in recent years. Among them, ternary metal oxides gradually attract attention because of the wide tenability of the two inequivalent cations in the lattice sites that offer interesting physicochemical perperties. In this work, ZnCo2O4 nanoparticles (NPs) were prepared by a chemical precipitation method and served as the HTL in inverted PSCs. The device based on the ZnCo2O4 NPs HTL showed better efficiency of 12.31% and negligible hysteresis compared with the one using PEDOT:PSS film as the HTL. Moreover, the device sustained 85% of its initial efficiency after 240 hours storage under a halogen lamps matrix exposure with an illumination intensity of 1000 W/m2, providing a powerful strategy to design long-term stable PSCs for future production.


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