Perovskite solar cells employing an eco-friendly and low-cost inorganic hole transport layer for enhanced photovoltaic performance and operational stability

2019 ◽  
Vol 7 (12) ◽  
pp. 7065-7073 ◽  
Author(s):  
Xin Li ◽  
Junyou Yang ◽  
Qinghui Jiang ◽  
Hui Lai ◽  
Shuiping Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Operational Stability ◽  
Transport Layer ◽  
Hole Transport Layer

A novel and eco-friendly MnS is employed as an inorganic HTL in a perovskite device with high PCE of ∼20%.

A Novel AIE Molecule as Hole Transport Layer Enables Efficient and Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
Lie Chen ◽  
Bin Huang ◽  
Yujun Cheng ◽  
Hui Lei ◽  
Lin Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Aggregation Induced Emission

A low-cost and efficient hole transport layer (HTL) material (TPE-CZ) with aggregation-induced emission (AIE) effect has been synthesized. Due to the AIE effect, perovskite solar cells with TPE-CZ as HTL...

scholarly journals CuI/Spiro-OMeTAD Double-Layer Hole Transport Layer to Improve Photovoltaic Performance of Perovskite Solar Cells

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 978
Author(s):  
Chaoqun Lu ◽  
Weijia Zhang ◽  
Zhaoyi Jiang ◽  
Yulong Zhang ◽  
Cong Ni
Keyword(s):  
Solar Cells ◽  
Double Layer ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Perovskite Layer

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.

scholarly journals Incorporation of Vanadium(V) Oxide in Hybrid Hole Transport Layer Enables Long-term Operational Stability of Perovskite Solar Cells

2020 ◽  
Vol 11 (14) ◽  
pp. 5563-5568
Author(s):  
Marina M. Tepliakova ◽  
Aleksandra N. Mikheeva ◽  
Lyubov A. Frolova ◽  
Aleksandra G. Boldyreva ◽  
Aly Elakshar ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Operational Stability ◽  
Transport Layer ◽  
Hole Transport Layer

Surface treatment via Li-bis-(trifluoromethanesulfonyl) imide to eliminate the hysteresis and enhance the efficiency of inverted perovskite solar cells

2017 ◽  
Vol 5 (39) ◽  
pp. 10280-10287 ◽  
Author(s):  
Cong Chen ◽  
Guang Yang ◽  
Junjie Ma ◽  
Xiaolu Zheng ◽  
Zhiliang Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Treatment ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Long Term Stability

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.

Improved the Performance and Stability at High Humidity of Perovskite Solar Cells by Mixed Cesium-Metylammonium Cations

2020 ◽  
Vol 860 ◽  
pp. 9-14
Author(s):  
Ayi Bahtiar ◽  
Rizka Yazibarahmah ◽  
Annisa Aprilia ◽  
Darmawan Hidayat
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Silicon Solar Cells ◽  
Hole Transport Layer ◽  
High Humidity ◽  
Lead Bromide ◽  
Solution Methods

Perovskite solar cells have a great potential as competitor of silicon solar cells which have been dominated the market of solar cells since last decade, due to a tremendous improvement of their power conversion efficiency (PCE). Recently, a PCE of perovskite solar cells above 23% have been obtained. Moreover, perovskite solar cells can be fabricated using simple solution methods, therefore, the whole cost production of solar cells is less than half of silicon solar cells. However, their low stability in thermal and high humidity hinder them to be produced and commercially used to replace silicon solar cells. Many efforts have been done to improve both PCE and stability, including mixed inorganic-organic cations, mixed halide anions, improvement of perovskite morphology or crystallinity and using small molecules for passivation of defect in perovskite. In this paper, we used mixed cesium-methylammonium to improve both PCE and stability of perovskite solar cells. Cesium was used due to its smaller ionic radius than methylammonium (MA) ions, therefore, the crystal structure of perovskite is not distorted. Moreover, perovskite cesium-lead-bromide (CsPbBr3) are more stable than that of MAPbBr3 and doping cesium increased light absorption in perovskite MAPbBr3. We studied the effect of mixed cesium-MA on the PCE and stability at high humidity (>70%). The percentage of cesium was varied at 0%, 5%, 10%, 15% and 20%. The perovskite solar cells have monolithic hole-transport layer free (HTL-free) structure using carbon as electrode. This structure was used due simple and low cost in processing of solar cells. Our results showed that by replacing 10% of MA ions with Cs ions, both PCE and stability at high humidity are improved.

Perovskite solar cells with a DMSO-treated PEDOT:PSS hole transport layer exhibit higher photovoltaic performance and enhanced durability

Nanoscale ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 4236-4243 ◽  
Author(s):  
Di Huang ◽  
Tenghooi Goh ◽  
Jaemin Kong ◽  
Yifan Zheng ◽  
Suling Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

scholarly journals The Way to Pursue Truly High-Performance Perovskite Solar Cells

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1269 ◽  
Author(s):  
Wu ◽  
Thakur ◽  
Chiang ◽  
Chandel ◽  
Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hot Electrons ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Hot Carriers ◽  
Potential Loss

The power conversion efficiency (PCE) of single-junction solar cells was theoretically predicted to be limited by the Shockley–Queisser limit due to the intrinsic potential loss of the photo-excited electrons in the light absorbing materials. Up to now, the optimized GaAs solar cell has the highest PCE of 29.1%, which is close to the theoretical limit of ~33%. To pursue the perfect photovoltaic performance, it is necessary to extend the lifetimes of the photo-excited carriers (hot electrons and hot holes) and to collect the hot carriers without potential loss. Thanks to the long-lived hot carriers in perovskite crystal materials, it is possible to completely convert the photon energy to electrical power when the hot electrons and hot holes can freely transport in the quantized energy levels of the electron transport layer and hole transport layer, respectively. In order to achieve the ideal PCE, the interactions between photo-excited carriers and phonons in perovskite solar cells has to be completely understood.

Efficient inverted planar perovskite solar cells based on inorganic hole-transport layers from nickel-containing organic sol

2019 ◽  
Vol 12 (01) ◽  
pp. 1850088 ◽  
Author(s):  
Weina Zhang ◽  
Jie Tang ◽  
Jihuai Wu ◽  
Zhang Lan
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Simple Solution ◽  
Hole Transport Layer ◽  
Solution Processed ◽  
Transport Dynamics ◽  
Nio Nanocrystals

Due to the rough surface of fluorine-doped tin oxide (FTO) conductive glasses, it is challenging to fabricate fully covered ultra-thin hole-transport layer (HTL) with thickness under 100[Formula: see text]nm by a simple solution-processed method. Yet, the quality of HTLs play a key role in determining photovoltaic performance of the inverted planar perovskite solar cells (PSCs) owing to their important functions for effectively extracting holes, blocking electrons, suppressing dark reaction, and so on. Here, we report a facile nickel-containing organic sol (Ni–Sol) route to fabricate fully covered 46[Formula: see text]nm thick NiO HTLs for efficient inverted planar PSCs. Comparing with the pre-synthesized NiO nanocrystals solution, the Ni–Sol is easier to spread around the rough outline of FTO to achieve higher surface coverage. Through optimizing the concentration of nickel-containing organic sol, the champion performance of the inverted planar PSCs can be achieved because of the high transparency and good hole-transport dynamics of the optimized NiO film. This work demonstrates the advanced Ni–Sol route for preparing efficient inverted planar PSCs by the simple solution-processed method.

Efficient and Stable Low-cost Perovskite Solar Cells Enabled by Using the Surface Passivated Carbon as Counter Electrode

2022 ◽  
Author(s):  
Yiming Chen ◽  
Shenghan Wu ◽  
Xiaohui Li ◽  
Meiyue Liu ◽  
Zeng Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Stability ◽  
Counter Electrode ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Preparation Process ◽  
Simple Preparation

Carbon-based hole-transport-layer free perovskite solar cells (C-PSCs) have attracted much attention due to their low cost, simple preparation process and high stability. However, the efficiency of C-PSCs is far behind...

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