Highly stable and efficient cathode-buffer-layer-free inverted perovskite solar cells

Nanoscale ◽  
2021 ◽  
Author(s):  
Yong Ryun Kim ◽  
Chang Mok Oh ◽  
Chang Jae Yoon ◽  
Ju-Hyeon Kim ◽  
Kiyoung Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Buffer Layer ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Device Structure ◽  
Insulating Polymers ◽  
Cathode Buffer Layer

We proposed a novel simplified device structure for efficient and stable inverted perovskite solar cells that has no cathode buffer layer by modifying the electron transport layer with insulating polymers as an additive.

scholarly journals Optimizing the Performance of CsPbI3-Based Perovskite Solar Cells via Doping a ZnO Electron Transport Layer Coupled with Interface Engineering

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Man Yue ◽  
Jie Su ◽  
Peng Zhao ◽  
Zhenhua Lin ◽  
Jincheng Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Buffer Layer ◽  
Doping Concentration ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Interface Engineering ◽  
High Concentration

Abstract Interface engineering has been regarded as an effective and noninvasive means to optimize the performance of perovskite solar cells (PSCs). Here, doping engineering of a ZnO electron transport layer (ETL) and CsPbI3/ZnO interface engineering via introduction of an interfacial layer are employed to improve the performances of CsPbI3-based PSCs. The results show that when introducing a TiO2 buffer layer while increasing the ZnO layer doping concentration, the open-circuit voltage, power conversion efficiency, and fill factor of the CsPbI3-based PSCs can be improved to 1.31 V, 21.06%, and 74.07%, respectively, which are superior to those of PSCs only modified by the TiO2 buffer layer or high-concentration doping of ZnO layer. On the one hand, the buffer layer relieves the band bending and structural disorder of CsPbI3. On the other hand, the increased doping concentration of the ZnO layer improves the conductivity of the TiO2/ZnO bilayer ETL because of the strong interaction between the TiO2 and ZnO layers. However, such phenomena are not observed for those of a PCBM/ZnO bilayer ETL because of the weak interlayer interaction of the PCBM/ZnO interface. These results provide a comprehensive understanding of the CsPbI3/ZnO interface and suggest a guideline to design high-performance PSCs.

scholarly journals Inverted perovskite solar cells with enhanced lifetime and thermal stability enabled by a metallic tantalum disulfide buffer layer

2021 ◽  
Author(s):  
Konstantinos Chatzimanolis ◽  
Konstantinos Rogdakis ◽  
Dimitris Tsikritzis ◽  
Nikolaos Tzoganakis ◽  
Marinos Tountas ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Electron Transport ◽  
Buffer Layer ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Thermal Stability Of

An ultra-thin 2D TaS2 buffer layer on top of the electron transport layer improves the efficiency,the lifetime and the thermal stability of inverted perovskite solar cells.

scholarly journals Ultrathin and compact electron transport layer made from novel water-dispersed Fe3O4 nanoparticles to accomplish UV-stable perovskite solar cells

2021 ◽  
Author(s):  
Song Fang ◽  
Bo Chen ◽  
Bangkai Gu ◽  
Linxing Meng ◽  
Hao Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Material ◽  
Main Factors ◽  
Induced Decomposition

UV induced decomposition of perovskite material is one of main factors to severely destroy perovskite solar cells for instability. Here we report a UV stable perovskite solar cell with a...

scholarly journals The Influence of the Thickness of Compact TiO2 Electron Transport Layer on the Performance of Planar CH3NH3PbI3 Perovskite Solar Cells

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3295
Author(s):  
Andrzej Sławek ◽  
Zbigniew Starowicz ◽  
Marek Lipiński
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Transport Layer ◽  
Electron Transport Layer

In recent years, lead halide perovskites have attracted considerable attention from the scientific community due to their exceptional properties and fast-growing enhancement for solar energy harvesting efficiency. One of the fundamental aspects of the architecture of perovskite-based solar cells (PSCs) is the electron transport layer (ETL), which also acts as a barrier for holes. In this work, the influence of compact TiO2 ETL on the performance of planar heterojunction solar cells based on CH3NH3PbI3 perovskite was investigated. ETLs were deposited on fluorine-doped tin oxide (FTO) substrates from a titanium diisopropoxide bis(acetylacetonate) precursor solution using the spin-coating method with changing precursor concentration and centrifugation speed. It was found that the thickness and continuity of ETLs, investigated between 0 and 124 nm, strongly affect the photovoltaic performance of PSCs, in particular short-circuit current density (JSC). Optical and topographic properties of the compact TiO2 layers were investigated as well.

Electron-transport-layer-free two-dimensional perovskite solar cells based on a flexible poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) cathode

2021 ◽  
Author(s):  
Zhihai Liu ◽  
Lei Wang ◽  
Chongyang Xu ◽  
Xiaoyin Xie
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Two Dimensional ◽  
High Power Conversion Efficiency ◽  
Long Term Stability

Recently, Ruddlesden–Popper two-dimensional (2D) perovskite solar cells (PSCs) have been intensively studied, owing to their high power conversion efficiency (PCE) and excellent long-term stability. In this work, we fabricated electron-transport-layer-free...

scholarly journals Magnesium doped TiO2 as an efficient electron transport layer in perovskite solar cells

2021 ◽  
pp. 101101
Author(s):  
Zafar Arshad ◽  
Asif Hussain Khoja ◽  
Sehar Shakir ◽  
Asif Afzal ◽  
M.A. Mujtaba ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Doped Tio2

scholarly journals Low-temperature-processed metal oxide electron transport layers for efficient planar perovskite solar cells

Rare Metals ◽  
2021 ◽  
Author(s):  
Jia-Xing Song ◽  
Xin-Xing Yin ◽  
Zai-Fang Li ◽  
Yao-Wen Li
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Metal Oxide ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Future Research ◽  
Low Temperature Preparation

Abstract As a promising photovoltaic technology, perovskite solar cells (pero-SCs) have developed rapidly over the past few years and the highest power conversion efficiency is beyond 25%. Nowadays, the planar structure is universally popular in pero-SCs due to the simple processing technology and low-temperature preparation. Electron transport layer (ETL) is verified to play a vital role in the device performance of planar pero-SCs. Particularly, the metal oxide (MO) ETL with low-cost, superb versatility, and excellent optoelectronic properties has been widely studied. This review mainly focuses on recent developments in the use of low-temperature-processed MO ETLs for planar pero-SCs. The optical and electronic properties of widely used MO materials of TiO2, ZnO, and SnO2, as well as the optimizations of these MO ETLs are briefly introduced. The commonly used methods for depositing MO ETLs are also discussed. Then, the applications of different MO ETLs on pero-SCs are reviewed. Finally, the challenge and future research of MO-based ETLs toward practical application of efficient planar pero-SCs are proposed. Graphical abstract

scholarly journals Dip coated SnO2 film as electron transport layer for low temperature processed planar perovskite solar cells

2021 ◽  
Vol 4 ◽  
pp. 100066
Author(s):  
A. Ashina ◽  
Ramya Krishna Battula ◽  
Easwaramoorthi Ramasamy ◽  
Narendra Chundi ◽  
S. Sakthivel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Perovskite Solar Cells ◽  
Sno2 Film ◽  
Transport Layer ◽  
Electron Transport Layer

scholarly journals Perovskite Solar Cells: Strategically Constructed Bilayer Tin (IV) Oxide as Electron Transport Layer Boosts Performance and Reduces Hysteresis in Perovskite Solar Cells (Small 12/2020)

Small ◽  
2020 ◽  
Vol 16 (12) ◽  
pp. 2070061
Author(s):  
Liangyou Lin ◽  
Timothy W. Jones ◽  
Jacob Tse‐Wei Wang ◽  
Andre Cook ◽  
Ngoc Duy Pham ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer
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