Bismuth-Antimony mixed double perovskites Cs2AgBi1-xSbxBr6 in solar cells

MRS Advances ◽  
2019 ◽  
Vol 4 (64) ◽  
pp. 3545-3552
Author(s):  
Martina Pantaler ◽  
Selina Olthof ◽  
Klaus Meerholz ◽  
Doru C. Lupascu
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Double Perovskite ◽  
Mixed System ◽  
Double Perovskites ◽  
Solar Cell Performance ◽  
Absorber Material ◽  
Bismuth Antimony ◽  
Conversion Efficiencies

AbstractReported conversion efficiencies of lead based perovskite solar cells keep increasing steadily. But next to the demand for high efficiency, the need for analogue non-toxic material systems remains. One promising lead free absorber material is the double perovskite Cs2AgBiBr6. Interest in this and other double perovskites has been increasing in the last three years and several solar cells using different device structures have been reported. However, the efficiency of these solar cells is merely in the range of 2%. To further improve solar cell performance we prepared mixed bismuth-antimony double perovskite Cs2AgBi1-xSbxBr6 where different fractions of antimony (x=0.125, 0.25, 0.375, 0.50) are used. This was motivated by reports of lower bandgap values in these mixed system. After the optimization of preparation of these thin films, we have carefully analysed the effects on the structure, composition, electronic structure, as well as optical properties. Finally, we have fabricated Bi-Sb mixed double perovskite solar cells in a mesoscopic device architecture.

scholarly journals Hybrid Organic-Inorganic Perovskites Open a New Era for Low-Cost, High Efficiency Solar Cells

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Guiming Peng ◽  
Xueqing Xu ◽  
Gang Xu
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
High Efficiency ◽  
Low Cost ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Device Structure ◽  
New Era ◽  
High Efficiency Solar Cells ◽  
Conversion Efficiencies

The ramping solar energy to electricity conversion efficiencies of hybrid organic-inorganic perovskite solar cells during the last five years have opened new doors to low-cost solar energy. The record power conversion efficiency has climbed to 19.3% in August 2014 and then jumped to 20.1% in November. In this review, the main achievements for perovskite solar cells categorized from a viewpoint of device structure are overviewed. The challenges and prospects for future development of this field are also briefly presented.

scholarly journals Deposition routes of Cs2AgBiBr6 double perovskites for photovoltaic applications

MRS Advances ◽  
2018 ◽  
Vol 3 (32) ◽  
pp. 1819-1823 ◽  
Author(s):  
Martina Pantaler ◽  
Christian Fettkenhauer ◽  
Hoang L. Nguyen ◽  
Irina Anusca ◽  
Doru C. Lupascu
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Perovskite Phase ◽  
Perovskite Solar Cells ◽  
Double Perovskite ◽  
Double Perovskites ◽  
Sequential Deposition ◽  
Absorber Material ◽  
Photovoltaic Applications ◽  
Deposition Processes

ABSTRACTThe lead free double perovskite Cs2AgBiBr6 is an upcoming alternative to lead based perovskites as absorber material in perovskite solar cells. So far, the majority of investigations on this interesting material have focused on polycrystalline powders and single crystals. We present vapor and solution based approaches for the preparation of Cs2AgBiBr6 thin films. Sequential vapor deposition processes starting from different precursors are shown and their weaknesses are discussed. Single source evaporation of Cs2AgBiBr6 and sequential deposition of Cs3Bi2Br9 and AgBr result in the formation of the double perovskite phase. Additionally, we show the possibility of the preparation of planar Cs2AgBiBr6 thin films by spin coating.

scholarly journals Perovskite Solar Cells Yielding Reproducible Photovoltage of 1.20 V

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Essa A. Alharbi ◽  
M. Ibrahim Dar ◽  
Neha Arora ◽  
Mohammad Hayal Alotaibi ◽  
Yahya A. Alzhrani ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Nonradiative Recombination ◽  
Time Resolved ◽  
Carrier Recombination ◽  
Absorber Material ◽  
Charge Carrier Recombination ◽  
Conversion Efficiencies

High photovoltages and power conversion efficiencies of perovskite solar cells (PSCs) can be realized by controlling the undesired nonradiative charge carrier recombination. Here, we introduce a judicious amount of guanidinium iodide into mixed-cation and mixed-halide perovskite films to suppress the parasitic charge carrier recombination, which enabled the fabrication of >20% efficient and operationally stable PSCs yielding reproducible photovoltage as high as 1.20 V. By introducing guanidinium iodide into the perovskite precursor solution, the bandgap of the resulting absorber material changed minimally; however, the nonradiative recombination diminished considerably as revealed by time-resolved photoluminescence and electroluminescence studies. Furthermore, using capacitance-frequency measurements, we were able to correlate the hysteresis features exhibited by the PSCs with interfacial charge accumulation. This study opens up a path to realize new record efficiencies for PSCs based on guanidinium iodide doped perovskite films.

scholarly journals Perovskite Solar Cells Yielding Reproducible Photovoltage of 1.20 V

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Essa A. Alharbi ◽  
M. Ibrahim Dar ◽  
Neha Arora ◽  
Mohammad Hayal Alotaibi ◽  
Yahya A. Alzhrani ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Nonradiative Recombination ◽  
Time Resolved ◽  
Carrier Recombination ◽  
Absorber Material ◽  
Charge Carrier Recombination ◽  
Conversion Efficiencies

High photovoltages and power conversion efficiencies of perovskite solar cells (PSCs) can be realized by controlling the undesired nonradiative charge carrier recombination. Here, we introduce a judicious amount of guanidinium iodide into mixed-cation and mixed-halide perovskite films to suppress the parasitic charge carrier recombination, which enabled the fabrication of >20% efficient and operationally stable PSCs yielding reproducible photovoltage as high as 1.20 V. By introducing guanidinium iodide into the perovskite precursor solution, the bandgap of the resulting absorber material changed minimally; however, the nonradiative recombination diminished considerably as revealed by time-resolved photoluminescence and electroluminescence studies. Furthermore, using capacitance-frequency measurements, we were able to correlate the hysteresis features exhibited by the PSCs with interfacial charge accumulation. This study opens up a path to realize new record efficiencies for PSCs based on guanidinium iodide doped perovskite films.

Tin as an emerging surrogate for Lead-free perovskite solar cells

2020 ◽  
Vol 10 ◽  
Author(s):  
Arunkumar Prabhakaran Shyma ◽  
Andrews Nirmala Grace ◽  
Vimala Raghavan ◽  
George Jacob ◽  
Raja Sellappan
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Oxidation Stability ◽  
Lead Toxicity ◽  
Lead Free ◽  
Photovoltaic Properties ◽  
Functional Additives ◽  
Absorber Material ◽  
Current Scenario

: Perovskite-based photovoltaic technology has gained significant attention owing to its tunable electrical and optical properties. Among them, lead-based perovskites are considered as the most efficient one that delivers maximum power conversion efficiency with ample stability. In the current scenario, the perovskite-based solar cells (PSCs) can be classified into two main categories, i.e., highly efficient lead-containing and underperforming lead-free based. Even though lead-based PSCs delivers high efficiency, it loses the charm in the context of lead toxicity. The toxicity issue related to lead stands as a barrier to the commercialization of lead-based PSCs. To date, various materials have been prepared and implemented as an alternative to lead in the absorber layer. Tin (Sn) based perovskites are explored as an alternative absorber material owing to its photovoltaic properties that are comparable to lead. Tin-based perovskites exhibit some drawbacks, such as rapid crystallization, lack of oxidation stability, etc. Many research group has addressed the problems regarding tinbased perovskites and modified its structural and morphological aspects through compositional engineering as well as functional additives and managed to obtain an efficiency of around 10 %. In this review, we portray the state of the art developments of tin-based PSCs and its future perspectives.

In-situ polymer-covered annealing strategy for high-efficiency carbon-electrode CsPbIBr2 solar cells

2021 ◽  
Author(s):  
Xiaoping Xie ◽  
Gang Liu ◽  
Peng Dong ◽  
Dawei Liu ◽  
Yufeng Ni ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Carbon Electrode ◽  
Inorganic Perovskite ◽  
Absorber Material

CsPbIBr2 has gained intense attention as the absorber material of all-inorganic perovskite solar cells (PSCs), owing to its upgraded stability and suitable bandgap. Yet, the efficiency level of CsPbIBr2 PSCs...

scholarly journals Influence of the Preparation Method on Planar Perovskite CH3NH3PbI3-xClx Solar Cell Performance and Hysteresis

2017 ◽  
Vol 54 (4) ◽  
pp. 58-68
Author(s):  
A. Ivanova ◽  
A. Tokmakov ◽  
K. Lebedeva ◽  
M. Roze ◽  
I. Kaulachs
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Step Method ◽  
Solar Cell Performance ◽  
One Step

Abstract Organometal halide perovskites are promising materials for lowcost, high-efficiency solar cells. The method of perovskite layer deposition and the interfacial layers play an important role in determining the efficiency of perovskite solar cells (PSCs). In the paper, we demonstrate inverted planar perovskite solar cells where perovskite layers are deposited by two-step modified interdiffusion and one-step methods. We also demonstrate how PSC parameters change by doping of charge transport layers (CTL). We used dimethylsupoxide (DMSO) as dopant for the hole transport layer (PEDOT:PSS) but for the electron transport layer [6,6]-phenyl C61 butyric acid methyl ester (PCBM)) we used N,N-dimethyl-N-octadecyl(3-aminopropyl)trimethoxysilyl chloride (DMOAP). The highest main PSC parameters (PCE, EQE, VOC) were obtained for cells prepared by the one-step method with fast crystallization and doped CTLs but higher fill factor (FF) and shunt resistance (Rsh) values were obtained for cells prepared by the two-step method with undoped CTLs.

A new polytriarylamine derivative for dopant-free high-efficiency perovskite solar cells

2019 ◽  
Vol 3 (10) ◽  
pp. 2627-2632 ◽  
Author(s):  
Sergey Tsarev ◽  
Igor K. Yakushchenko ◽  
Sergey Yu Luchkin ◽  
Petr M. Kuznetsov ◽  
Ruslan S. Timerbulatov ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
High Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Conversion Efficiencies

Modification of PTAA molecular structure significantly improves the power conversion efficiencies of dopant-free HTL n–i–p perovskite solar cells.

scholarly journals Influence of Film Quality on Power Conversion Efficiency in Perovskite Solar Cells

Coatings ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 622 ◽  
Author(s):  
Huang ◽  
Gao ◽  
Zhang ◽  
Tian ◽  
Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Low Cost ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Solar Cell Performance ◽  
Exciton Diffusion Length ◽  
Fabrication Procedure

Abstract: Organic-inorganic perovskite solar cells (PSCs) are a high-efficiency, low-cost form of solar technology because of the abundance of useful materials and a simple fabrication procedure relative to other photovoltaic devices. Furthermore, the perovskite material shows decent electron and hole mobilities, a wide absorption range, and long exciton diffusion length. So far, many groups have focused on the research of perovskite thin-film solar cells, and these perovskite solar cells have been deemed to be one of the leading next generation photovoltaic technologies. However, there are several problems that restrict the enhancement of perovskite solar cell performance such as their poor uniformity and low crystallinity. Herein we summarize and discuss the role of film quality on power conversion efficiency, and effect of fabrication condition on the light absorbance of perovskite film.

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