Fast Thermal Annealing of CH3NH3PbI3-xClx Films for Improving Hybrid Photovoltaics

2017 ◽  
Vol 727 ◽  
pp. 923-928
Author(s):  
Jian Hong Zhao ◽  
Lei Ming Yu ◽  
Tao Yu Zou ◽  
Zhen Fang Qiao ◽  
Li Luo ◽  
...  
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Heterojunction Solar Cells ◽  
Perovskite Materials ◽  
Hybrid Perovskite ◽  
Temperature Solution ◽  
One Step ◽  
Hybrid Photovoltaics

Organic-inorganic hybrid perovskite materials offer the potential for realization of low-cost and flexible next-generation solar cells fabricated by low-temperature solution processing. Although efficiencies of perovskite solar cells have dramatically improved up to 22.1% within the past 6 years, there is still considerable room for further improvement in device efficiency through development of smooth and large grain size perovskite films. Commonly, the smooth perovskite layers and large grains are alternative to CH3NH3PbI3-xClx. However, the previous one-step fabrication of CH3NH3PbI3-xClx using PbCl2 needs long annealing time. Herein, the active layer, a noncontinuous CH3NH3PbI3-xClx film with micrometre-level crystalline grain, was fabricated using a one-step spin-coating process followed by high-temperature annealing and exhibited an increased efficiency of 9.93%. This finding enables the formation of larger grain size perovskite films and the demonstration of efficient perovskite heterojunction solar cells.

scholarly journals Major Impediment to Highly Efficient, Stable and Low-Cost Perovskite Solar Cells

Metals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 964 ◽  
Author(s):  
Yue Zhang ◽  
Haiming Zhang ◽  
Xiaohui Zhang ◽  
Lijuan Wei ◽  
Biao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carrier Mobility ◽  
High Efficiency ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Environmental Stability ◽  
Perovskite Materials ◽  
Hybrid Perovskite ◽  
Silicon Based ◽  
Major Impediment

Organic–inorganic hybrid perovskite solar cells (PSCs) have made immense progress in recent years, owing to outstanding optoelectronic properties of perovskite materials, such as high extinction coefficient, carrier mobility, and low exciton binding energy. Since the first appearance in 2009, the efficiency of PSCs has reached 23.3%. This has made them the most promising rival to silicon-based solar cells. However, there are still several issues to resolve to promote PSCs’ outdoor applications. In this review, three crucial aspects of PSCs, including high efficiency, environmental stability, and low-cost of PSCs, are described in detail. Recent in-depth studies on different aspects are also discussed for better understanding of these issues and possible solutions.

scholarly journals Room-Temperature Solution-Processed 0D/1D Bilayer Electrodes for Translucent CsPbBr3 Perovskite Photovoltaics

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1489
Author(s):  
Bhaskar Parida ◽  
Saemon Yoon ◽  
Dong-Won Kang
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Room Temperature ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Plasma Damage ◽  
Temperature Solution ◽  
Ito Nanoparticles

Materials and processing of transparent electrodes (TEs) are key factors to creating high-performance translucent perovskite solar cells. To date, sputtered indium tin oxide (ITO) has been a general option for a rear TE of translucent solar cells. However, it requires a rather high cost due to vacuum process and also typically causes plasma damage to the underlying layer. Therefore, we introduced TE based on ITO nanoparticles (ITO-NPs) by solution processing in ambient air without any heat treatment. As it reveals insufficient conductivity, Ag nanowires (Ag-NWs) are additionally coated. The ITO-NPs/Ag-NW (0D/1D) bilayer TE exhibits a better figure of merit than sputtered ITO. After constructing CsPbBr3 perovskite solar cells, the device with 0D/1D TE offers similar average visible transmission with the cells with sputtered ITO. More interestingly, the power conversion efficiency of 0D/1D TE device was 5.64%, which outperforms the cell (4.14%) made with sputtered-ITO. These impressive findings could open up a new pathway for the development of low-cost, translucent solar cells with quick processing under ambient air at room temperature.

scholarly journals Potassium iodide reduces the stability of triple-cation perovskite solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (66) ◽  
pp. 40341-40350 ◽  
Author(s):  
Tarek I. Alanazi ◽  
Onkar S. Game ◽  
Joel A. Smith ◽  
Rachel C. Kilbride ◽  
Claire Greenland ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Alkali Metal ◽  
Potassium Iodide ◽  
Perovskite Solar Cells ◽  
Metal Halides ◽  
Perovskite Materials ◽  
Hybrid Perovskite ◽  
Alkali Metal Halides ◽  
The Stability

The addition of alkali metal halides to hybrid perovskite materials can significantly impact their crystallisation and hence their performance when used in solar cell devices.

scholarly journals Efficient indoor p-i-n hybrid perovskite solar cells using low temperature solution processed NiO as hole extraction layers

2019 ◽  
Vol 201 ◽  
pp. 110071 ◽  
Author(s):  
Lethy Krishnan Jagadamma ◽  
Oskar Blaszczyk ◽  
Muhammad T. Sajjad ◽  
Arvydas Ruseckas ◽  
Ifor D.W. Samuel
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Perovskite Solar Cells ◽  
Solution Processed ◽  
Hybrid Perovskite ◽  
Temperature Solution

Morphology-controlled CH3NH3PbI3films by hexane-assisted one-step solution deposition for hybrid perovskite mesoscopic solar cells with high reproductivity

2015 ◽  
Vol 3 (45) ◽  
pp. 22839-22845 ◽  
Author(s):  
Na Lin ◽  
Juan Qiao ◽  
Haopeng Dong ◽  
Fusheng Ma ◽  
Liduo Wang
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Solution Deposition ◽  
Hybrid Perovskite ◽  
One Step ◽  
And Performance

Morphology-controlled perovskite films were realized byn-hexane to promote crystallization of CH3NH3PbI3, thus improving their thermal stability and performance of the perovskite solar cells.

Defects and passivation in perovskite solar cells

2021 ◽  
pp. 1-18
Author(s):  
Yaobo Li ◽  
Zhaohan Li ◽  
Fangze Liu ◽  
Jing Wei
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Surface Passivation ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Film Deposition ◽  
Transport Layer ◽  
Hybrid Perovskite ◽  
High Absorption Coefficient ◽  
Charge Transport Layer

This organic-inorganic hybrid perovskite materials have attracted great attention by virtue of their high absorption coefficient, low cost and simple film deposition technique. Based on these advantages, perovskite solar cells have reached an impressive power conversion efficiency over 25%. However, the low-temperature process inevitably leads to a large number of defects in the perovskite film. These defects would exacerbate the carrier recombination, induce crystal degradation, phase transformation and seriously affect the performance of devices. Studying the defects in perovskite film is of great significance for the development of high-performance perovskite solar cells. Herein, the authors summarise the causes, distribution and features of defects, as well as their effects on the performance of perovskite solar cells. Furthermore, some defect-passivation strategies on perovskite film or the device, including grain boundary passivation, surface passivation, capping layer modification and charge transport layer passivation, are discussed, respectively. Lastly, some remaining challenges in the commercialisation of perovskite solar cells are proposed.

Surface recrystallized stable 2D-3D graded perovskite solar cells for efficiency beyond 21%†

2021 ◽  
Author(s):  
Rabindranath Garai ◽  
Ritesh Kant Gupta ◽  
Maimur Hossain ◽  
Parameswar K Iyer
Keyword(s):  
Solar Cells ◽  
Rapid Growth ◽  
Perovskite Solar Cells ◽  
Ambient Conditions ◽  
Inorganic Hybrid ◽  
Perovskite Materials ◽  
Hybrid Perovskite

Recently, organic-inorganic hybrid perovskite solar cells (PSCs) have experienced a rapid growth in terms of efficiency. However, the instability of hybrid perovskite materials towards ambient conditions restricts its commercialization. Formation...

Coarsening of one-step deposited organolead triiodide perovskite films via Ostwald ripening for high efficiency planar-heterojunction solar cells

2016 ◽  
Vol 45 (18) ◽  
pp. 7856-7865 ◽  
Author(s):  
Weidong Zhu ◽  
Chunxiong Bao ◽  
Yangrunqian Wang ◽  
Faming Li ◽  
Xiaoxin Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Ostwald Ripening ◽  
Perovskite Solar Cells ◽  
Grain Coarsening ◽  
Heterojunction Solar Cells ◽  
One Step ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

The remarkable grain coarsening in one-step deposited OTP films for high efficiency planar-heterojunction perovskite solar cells.

scholarly journals Organic Inorganic Perovskites: A Low-Cost-Efficient Photovoltaic Material

2021 ◽  
Author(s):  
Madeeha Aslam ◽  
Tahira Mahmood ◽  
Abdul Naeem
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Lead Toxicity ◽  
Practical Significance ◽  
Inorganic Perovskite ◽  
Perovskite Materials ◽  
Cost Efficient

Organic-inorganic perovskite materials, due to the simultaneous possession of various properties like optical, electronic and magnetic beside with their structural tunability and good processability, has concerned the attention of researchers from the field of science and technology since long back. Recently, the emergence of efficient solar cells based on organic-inorganic perovskite absorbers promises to alter the fields of thin film, dye-sensitized and organic solar cells. Solution processed photovoltaics based on organic-inorganic perovskite absorbers CH3NH3PbI3 have attained efficiencies of over 25%. The increase in popularity and considerable enhancement in the efficiency of perovskites since their discovery in 2009 is determined by over 6000 publications in 2018. However, although there are broad development prospects for perovskite solar cells (PSCs), but the use of CH3NH3PbI3 results in lead toxicity and instability which limit their application. Therefore, the development of environmental-friendly, stable and efficient perovskite materials for future photovoltaic applications has long-term practical significance, which can eventually be commercialized.

scholarly journals Cadmium-doped flexible perovskite solar cells with a low-cost and low-temperature-processed CdS electron transport layer

RSC Advances ◽  
2017 ◽  
Vol 7 (32) ◽  
pp. 19457-19463 ◽  
Author(s):  
Guoqing Tong ◽  
Zihang Song ◽  
Chengdong Li ◽  
Yaolong Zhao ◽  
Linwei Yu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Low Temperature ◽  
High Performance ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Transfer Layer ◽  
Hybrid Perovskite

Hybrid perovskite solar cells (PSCs) are promising candidates in exploring high performance flexible photovoltaics, where a low-temperature-processed metal oxide electron transfer layer (ETL) is highly preferable.

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