scholarly journals Affordable and sustainable new generation of solar cells: calcium titanate (CaTiO3) - based perovskite solar cells

2018 ◽  
Vol 67 ◽  
pp. 01010
Author(s):  
Alfonsina Abat Amelenan Torimtubun ◽  
Anniza Cornelia Augusty ◽  
Eka Maulana ◽  
Lusi Ernawati
Keyword(s):  
Solar Cells ◽  
Power Efficiency ◽  
High Efficiency ◽  
Heating Temperature ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Calcium Titanate ◽  
Open Circuit ◽  
Raw Material ◽  
Lead Free

Indonesia is located along the equator lines with the high intensity of solar radiation averaging about 4.5 kWh of electrical energy/day. This potential leads to the selfsustaining energy possibility fulfilling the electricity needs. Due to their unique electronic structures and high-cost merit over the existing commercial PV technologies, perovskite solar cells (PSCs) have emerged as the next-generation photovoltaic candidate. Their highest power efficiency can be achieved of up to 22.1% in the last 5-6 years. However, this high efficiency came from CH3NH3PbI3 materials which contain lead, a toxic material. Herein calcium titanate (CT) as a lead-free perovskite material were synthesized through sintering of calcium carbonate (CaCO3) and titanium oxide (TiO2) by the sol-gel method. CT powders were characterized by SEM, XRF, FTIR and XRD then applied it onto the mesoporous heterojunction PSCs, with a device architecture ITO/TiO2/CaTiO3/C/ITO. By manipulating the raw material stoichiometry and heating temperature in the synthesis of CaTiO3, the device shows the highest power conversion efficiency (PCE) of 2.12%, shortcircuit current density (JSC) of 0.027 mA cm-2, open circuit voltage (VOC) of 0.212 V and fill factor (FF) of 53.90%. This sample can be an alternative way to create lead-free, largescale, and low-cost perovskite solar cells.

scholarly journals The Main Progress of Perovskite Solar Cells in 2020–2021

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Tianhao Wu ◽  
Zhenzhen Qin ◽  
Yanbo Wang ◽  
Yongzhen Wu ◽  
Wei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Manufacturing Cost ◽  
Practical Application ◽  
The World ◽  
Photovoltaic Technology

AbstractPerovskite solar cells (PSCs) emerging as a promising photovoltaic technology with high efficiency and low manufacturing cost have attracted the attention from all over the world. Both the efficiency and stability of PSCs have increased steadily in recent years, and the research on reducing lead leakage and developing eco-friendly lead-free perovskites pushes forward the commercialization of PSCs step by step. This review summarizes the main progress of PSCs in 2020 and 2021 from the aspects of efficiency, stability, perovskite-based tandem devices, and lead-free PSCs. Moreover, a brief discussion on the development of PSC modules and its challenges toward practical application is provided.

scholarly journals Spray‐coated lead‐free Cs 2 AgBiBr 6 double perovskite solar cells with high open‐circuit voltage

Solar RRL ◽  
2021 ◽  
Author(s):  
Nathan Daem ◽  
Jennifer Dewalque ◽  
Felix Lang ◽  
Anthony Maho ◽  
Gilles Spronck ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Double Perovskite ◽  
Open Circuit ◽  
Lead Free

High-Efficiency Lead-Free Wide Band Gap Perovskite Solar Cells via Guanidinium Bromide Incorporation

2021 ◽  
Author(s):  
Mengmeng Chen ◽  
Muhammad Akmal Kamarudin ◽  
Ajay K. Baranwal ◽  
Gaurav Kapil ◽  
Teresa S. Ripolles ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Wide Band ◽  
Lead Free ◽  
Wide Band Gap

scholarly journals Facile NiOx Sol-Gel Synthesis Depending on Chain Length of Various Solvents without Catalyst for Efficient Hole Charge Transfer in Perovskite Solar Cells

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1227 ◽  
Author(s):  
Byung Kim ◽  
Woongsik Jang ◽  
Dong Wang
Keyword(s):  
Solar Cells ◽  
Chain Length ◽  
Short Circuit ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Perovskite Layer

Nickel oxide (NiOx)–based perovskite solar cells (PSCs) have recently gained considerable interest, and exhibit above 20% photovoltaic efficiency. However, the reported syntheses of NiOx sol-gel used toxic chemicals for the catalysts during synthesis, which resulted in a high-temperature annealing requirement to remove the organic catalysts (ligands). Herein, we report a facile “NiOx sol-gel depending on the chain length of various solvents” method that eschews toxic catalysts, to confirm the effect of different types of organic solvents on NiOx synthesis. The optimized conditions of the method resulted in better morphology and an increase in the crystallinity of the perovskite layer. Furthermore, the use of the optimized organic solvent improved the absorbance of the photoactive layer in the PSC device. To compare the electrical properties, a PSC was prepared with a p-i-n structure, and the optimized divalent alcohol-based NiOx as the hole transport layer. This improved the charge transport compared with that for the typical 1,2-ethanediol (ethylene glycol) used in earlier studies. Finally, the optimized solvent-based NiOx enhanced device performance by increasing the short-circuit current density (Jsc), open-circuit voltage (Voc), and fill factor (FF), compared with those of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)–based devices.

Device simulation of lead-free CH 3 NH 3 SnI 3 perovskite solar cells with high efficiency

2016 ◽  
Vol 25 (10) ◽  
pp. 108802 ◽  
Author(s):  
Hui-Jing Du ◽  
Wei-Chao Wang ◽  
Jian-Zhuo Zhu
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Device Simulation ◽  
Lead Free

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.

Tailoring molecular termination for thermally stable perovskite solar cells

2021 ◽  
Vol 42 (11) ◽  
pp. 112201
Author(s):  
Xiao Zhang ◽  
Sai Ma ◽  
Jingbi You ◽  
Yang Bai ◽  
Qi Chen
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Carbonyl Group ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Interfacial Engineering ◽  
Improved Performance ◽  
Interface Passivation

Abstract Interfacial engineering has made an outstanding contribution to the development of high-efficiency perovskite solar cells (PSCs). Here, we introduce an effective interface passivation strategy via methoxysilane molecules with different terminal groups. The power conversion efficiency (PCE) has increased from 20.97% to 21.97% after introducing a 3-isocyanatopropyltrimethoxy silane (IPTMS) molecule with carbonyl group, while a trimethoxy[3-(phenylamino)propyl] silane (PAPMS) molecule containing aniline group deteriorates the photovoltaic performance as a consequence of decreased open circuit voltage. The improved performance after IPTMS treatment is ascribed to the suppression of non-radiative recombination and enhancement of carrier transportation. In addition, the devices with carbonyl group modification exhibit outstanding thermal stability, which maintain 90% of its initial PCE after 1500 h exposure. This work provides a guideline for the design of passivation molecules aiming to deliver the efficiency and thermal stability simultaneously.

Interfacial engineering enables high efficiency with a high open-circuit voltage above 1.23 V in 2D perovskite solar cells

2018 ◽  
Vol 6 (37) ◽  
pp. 18010-18017 ◽  
Author(s):  
Jiehuan Chen ◽  
Xiaomei Lian ◽  
Yingzhu Zhang ◽  
Weitao Yang ◽  
Jun Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Interface Engineering ◽  
Interfacial Engineering

High efficiency (12.07%) 2D perovskite solar cells with a high open-circuit voltage above 1.23 V are realized via interface engineering.

Inverted Planar Perovskite Solar Cells Based on NiOx Nano Film with Enhanced Efficiency and Stability

2020 ◽  
Vol 20 (3) ◽  
pp. 1892-1898 ◽  
Author(s):  
Kejie Dai ◽  
Xuan Zhao
Keyword(s):  
Solar Cells ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Mesoporous Structure ◽  
Ambient Air ◽  
Open Circuit ◽  
Voltage Measurement ◽  
Robust Property ◽  
Hole Transporting ◽  
Low Efficiency

The organometal halide perovskite (OHP) materials have attracted much attention throughout the world due to their superb optoelectronic properties. Tremendous progress has been made in the OHP based solar cells with increased efficiency from 3.8% to 24.2% within the last decade, benefiting from efforts in the photovoltaic field. However, all the OHP solar cells with highest efficient are based on a normal mesoporous structure with TiO2 at the bottom, which needs high temperature process. The inverted planar structure OHP solar cells based on PEDOT:PSS suffer from low efficiency (lower than 15%) and inferior stability due to degradation of PEDOT:PSS in ambient air. Herein, we employed sol–gel method to fabricate a NiOx nano film as the hole transporting layer for inverted OHP solar cells. The device performance based on PEDOT:PSS and NiOx were systematically investigated. It was found that the perovskite films on NiOx film had larger grain size and thus lower defects) density. The Capacitance–Voltage measurement indicated that the device based on NiOx exhibited larger built-in potential, which significantly enhanced the open-circuit potential of the OHP solar cells. Furthermore, the solar cell based on NiOx nano film exhibited excellent stability compared with the PEDOT:PSS based device, due to robust property of NiOx in ambient air.

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