Steric effect of amino-acids as additives for perovskite solar cells
24, 25 For example, Hu and co-authors employed natural amino acids as defect passivation agents in perovskite cells and achieved a high PCE of 20.49% with improved stability. 26 In this study, we
Natural Amino Acid Enables Scalable Fabrication of
Here, a natural amino acid, phenylalanine (Phe), is introduced to regulate the nucleation and crystal growth process of the large-scale coating of FA-based perovskite films. Better film coverage and larger grain sizes are
Improved performance and stability of hole-conductor-free
Carbon-based and hole-transporting-material-free perovskite solar cells (PSCs) are a promising alternative structure for low-cost applicable method to their manufacturing. However, in this technology, the presence of 5-ammonium valeric acid iodide (5-AVAI) as co-cation to the commonly used MAPbI3 perovskite is necessary which promotes the crystal
Correlating the Active Layer Structure and Composition
Additive engineering is emerging as a powerful strategy to further enhance the performance of perovskite solar cells (PSCs), with the incorporation of bulky cations and amino acid (AA) derivatives being shown as a promising strategy
Energy level modulation of TiO2 using amino
The performance of planar perovskite solar cells (PSCs) is closely linked to the charge extraction and transfer in electron transporting layers (ETLs). To achieve a good control of the photoelectric properties of TiO2 ETLs, we introduce amino
Stabilizing perovskite precursors with the reductive natural amino
Here, we utilize a reductive natural amino acid, N -acetylcysteine (NALC), to stabilize the precursor solution for printable carbon-based hole-conductor-free mesoscopic
Interface engineering for highly efficient carbon-based all
However, perovskite film based on the solution method inevitably have a large number of defects at the interface. In this paper, a biocompatible potassium amino acid salt was introduced into carbon-Based all-Inorganic perovskite
Interface Engineering via Amino Acid for Efficient and
Perovskite solar cells (PSCs) have made unprecedented progress in improving power conversion efficiency in the past decade, and they are considered as one of the most promising photovoltaic
Interface Passivation of Perovskite Solar Cells by Fmoc-Ala-OH Amino Acids
Carrier recombination at the interfaces of perovskite solar cells (PSCs) has always been one of the main limitations of device performance. How to restrain the generation of defect state on the perovskite film surface and improve the carrier extraction efficiency are crucial to break the bottleneck. Herein, the influence of an amino acid-based N-(9
Amino acid salt induced PbI
Consequently, n-i-p perovskite solar cells achieve a power conversion efficiency (PCE) of 24.1% with a high fill factor of 82.9%. The PL-Glu-modified device maintained 92% of the initial PCE after 2700 hours under
Amino Acid‐Based Low‐Dimensional Management for
It has been reported that an overlayer of lower dimensional perovskite can effectively improve the properties of 3D perovskite solar cells. Here, 4-aminobutyric acid (C4I) and 6-aminocaproic acid iodides (C6I) are
Supplemental Information for efficient perovskite solar cells and
Supplemental Information Overcoming photovoltage deficit via natural amino acid passivation for efficient perovskite solar cells and modules Jinlong Hu,1 Xin Xu,2 Yijun Chen,1 Shaohang Wu,1 Zhen Wang,1 Yousheng Wang,1 Xiaofang Jiang,3 Boyuan Cai,4 Tingting Shi,2* Christoph J. Brabec5,6, Yaohua Mai1, and Fei Guo1,7 1Institute of New Energy Technology, College of
Enhancing perovskite solar cell efficiency and stability through
It efficiently inhibits UV-induced perovskite degradation through UV tautomerism, improving perovskite crystal quality, passivates uncoordinated Pb 2 + defects by Lewis acid–base reactions, reducing defect-induced recombination, improves the energy-level arrangement between perovskite and S p i r o − O M e T A D, enhancing charge transfer efficiency.
Journal of Materials Chemistry C
An (s)- (−)-4-amino-2-hydroxybutyric acid molecule (AHBA) with trifunctional groups is proposed as an effective multisite passivator and crosslinker to improve optoelectronic performance and stability of perovskite films. Here, amino and
Boosting the performance of MA-free inverted
In this study, we propose the use of two multifunctional amino acid molecules, 2-ACL and 3-ACL, as additives to passivate perovskite films. The amino and carboxyl groups of these molecules interact strongly with the
Journal of Materials Chemistry C
An (s)-(−)-4-amino-2-hydroxybutyric acid molecule (AHBA) with trifunctional groups is proposed as an effective multisite passivator and crosslinker to improve optoelectronic performance and stability of perovskite films.Here, amino and
Steric effect of amino-acids as additives for perovskite solar cells
In perovskite solar cells, the molecule configuration of Lewis adducts closely related with its coordination ability, which needs careful design. In this work, two amino acids, circular proline and linear glycine are applied to reveal the steric effect of the Lewis-acid base additives. The proline with configuration and analogous size with Pb-Pb distance in perovskite
Natural Amino Acid Enables Scalable Fabrication of
Natural Amino Acid Enables Scalable Fabrication of High-Performance Flexible Perovskite Solar Cells and Modules with Areas over 300 cm 2. Ziyi Wu, (FA)-based perovskite solar cells (PSCs) has been considered
Heterojunction In Situ Constructed by a
Heterojunction In Situ Constructed by a Novel Amino Acid-Based Organic Spacer for Efficient and Stable Perovskite Solar Cells. Boxue Zhang. resulting in efficient perovskite solar cells
Amino-Acid-Type Alkylamine Additive for High-Performance
Perovskite solar cells (PSCs) with an inverted structure (often referred to as the p-i-n architecture) are attractive for future commercialization due to their easily scalable fabrication
(PDF) Heterojunction In Situ Constructed by a Novel
Heterojunction In Situ Constructed by a Novel Amino Acid-Based Organic Spacer for Efficient and Stable Perovskite Solar Cells September 2022 ACS Applied Materials & Interfaces 14(36)
Dual Passivation of CsPbI3 Perovskite Nanocrystals
Inorganic CsPbI 3 perovskite quantum dot (PQD) receives increasing attention for the application in the new generation solar cells, but the defects on the surface of PQDs significantly affect the photovoltaic performance and stability of solar
Amino Acid Double-Passivation-Enhanced Quantum
Formamidinium lead triiodide (FAPbI3) perovskite quantum dot has outstanding durability, reasonable carrier lifetime, and long carrier diffusion length for a new generation of highly efficient solar cells. However, ligand engineering is a
The prospects of biologically derived materials in perovskite solar cells
In a similar study, amino acids (glycine, β-alanine, l-alanine and 5-aminovaleric acid) were used to modify TiO 2 by binding to the ETL through COOˉ bidentate coordination, while the amino group protruded away from the surface, increasing the perovskite/amino acid interactions that resulted in the largest PCE improvement from 10.76 to 14.22 % with the use
Interfacial Engineering of Nickel Oxide‐Perovskite
To investigate the impact of amino acid-based complexes on the overall efficiency of photovoltaic systems, p-i-n structured perovskite solar cells (PSCs) were assembled using the following device configuration:
Enhanced Perovskite Solar Cell Performance via 2
The intrinsic stability issues of the perovskite materials threaten the efficiency and stability of the devices, and stability has become the main obstacle to industrial applications. Herein, the efficient and facile passivation strategy by 2-amino-5
Overcoming photovoltage deficit via natural amino acid
A chiral aromatic amino acid, (S)-3-Amino-4-phenylbutyric acid hydrochloride (s-APACl), was employed as an additive to the active layer in a p-i-n organic-inorganic halide perovskite solar cell
Amino Acid Salt-Driven Planar Hybrid Perovskite Solar Cells
Request PDF | Amino Acid Salt-Driven Planar Hybrid Perovskite Solar Cells With Enhanced Humidity Stability | While hybrid perovskites have great potential as light-absorbing materials, they suffer
Interfacial Engineering of Nickel Oxide‐Perovskite
The interface between NiO and perovskite in inverted perovskite solar cells (PSCs) is a major factor that can limit device performance due to defects and inappropriate redox reactions, which cause nonradiative
Efficient perovskite solar cells by interface optimization with l
SnO 2-based halide perovskite solar cells (PSCs) have recently garnered attention due to their simple and low-temperature fabrication processing. However, the interface defects due to the low temperature process of SnO 2 and imperfect energy band alignment between electron transport layer (ETL) and perovskite layer limit the improvement in efficiency
Manipulating Ion Migration and Interfacial Carrier
Instability caused by the migrating ions is one of the major obstacles toward the large-scale application of metal halide perovskite optoelectronics. Inactivating mobile ions/defects via chemical passivation,
Amino-acid-type alkylamine additive for high-performance wide
Herein, we report a amino-acid-type alkylamine, 5-aminolevulinic acid hydrochloride (ALH) additive to address these issues to enhance the performance of WBG
Amino acid salt induced PbI
Amino acid salt induced PbI 2 crystal orientation optimization for high-efficiency perovskite solar cells with long-term stability Consequently, n-i-p perovskite solar cells achieve a power conversion efficiency (PCE) of 24.1%
Surface modification of perovskite film by an amino acid
Amino acids, as a type of organic substance containing amino (-NH 2), carboxyl (-COOH) and other side chain groups, are often employed to passivate defects in perovskite film or interfaces.The –NH 2 and –COOH in amino acids can respectively passivate the cation vacancy and anion vacancy to improve the device performance of the PSCs [29].Seok-In Na et al.
Interface Engineering via Amino Acid for Efficient and Stable
In n–i–p structured perovskite solar cells (PSCs), the electron transport layer (ETL)/perovskite interfaces greatly influence the power conversion efficiency (PCE) and
Amino Acid Double-Passivation-Enhanced Quantum
Formamidinium lead triiodide (FAPbI 3) perovskite quantum dot has outstanding durability, reasonable carrier lifetime, and long carrier diffusion length for a new generation of highly efficient solar cells.
6 FAQs about [Amino Acid Perovskite Solar Cells]
Do amino acids affect perovskite solar cells?
Furthermore, the additives inhibit the decomposition of the perovskite layer, stabilizing the interface structure and enhancing the stability of perovskite solar cells. Density functional theory calculations were used to investigate the passivation effect of the two amino acids on the perovskite.
Can amino acid salts improve the moisture stability of planar-structure perovskite solar cells?
Herein, we report an attempt to improve the moisture stability of planar-structure perovskite solar cells (PVSCs) using amino acid salts with a π-conjugated benzene ring, such as p -aminobenzoic acid iodide (PABA∙HI), as a crosslinker.
Can amino acids be used to passivate perovskite films?
In this study, we propose the use of two multifunctional amino acid molecules, 2-ACL and 3-ACL, as additives to passivate perovskite films. The amino and carboxyl groups of these molecules interact strongly with the perovskite, effectively passivating defects at grain boundaries.
How efficient are n-i-p perovskite solar cells?
Consequently, n-i-p perovskite solar cells achieve a power conversion efficiency (PCE) of 24.1% with a high fill factor of 82.9%. The PL-Glu-modified device maintained 92% of the initial PCE after 2700 hours under nitrogen. This study provides a novel engineering strategy for simultaneously optimizing perovskite absorbers and interfaces.
What factors affect the power conversion efficiency and stability of perovskite solar cells?
The power conversion efficiency and stability of perovskite solar cells are affected by multiple factors, including the properties of the perovskite layers, interfaces, and transport layers. In this study, we propose the use of two multifunctional amino acid molecules, 2-ACL and 3-ACL, as additives to passivate perovskite films.
Does alkylamine enhance the performance of WBG perovskite solar cells?
However, such WBG perovskite solar cell (PSC) suffers from inferior crystallinity, huge voltage loss and poor photostability. Herein, we report a amino-acid-type alkylamine, 5-aminolevulinic acid hydrochloride (ALH) additive to address these issues to enhance the performance of WBG PSCs.