Self‐Assembled Molecule‐Assisted Simplified Processing of High‐Performance Solar Cells and Light‐Emitting Diodes DOI

Xueqing Chang,

Guo Yang,

Ying Tan

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: 8(11)

Published: May 26, 2024

State‐of‐the‐art, high‐performance solar cells and light‐emitting diodes normally rely on tedious layer‐by‐layer sequential deposition of carrier transport layer light‐absorbing/emitting layers, which is not cost‐effective. Several recent exciting works have demonstrated surprising breakthroughs in terms simplified processing these optoelectronic devices. Upon the incorporation carbazole phosphonic acid molecules their derivatives into precursor ink beforehand, charge‐selective contact could spontaneously self‐assemble at buried interface between conducting substrate photoactive layer, results construction simplified‐structured devices that yield comparable performances to conventionally fabricated with full architectures. Herein, groundbreaking advancement via a convenient codeposition technique summarized, particular emphasis elucidating chemical mechanism self‐assembly mode highlighting unique advantages this strategy crystallization regulation, targeted defect passivation, dynamics modulation, comprehensive device performance improvement. Finally, associated challenges are critically discussed future research directions insightfully proposed, can revolutionize pathway toward constructing highly efficient cost‐effective manner setting forward commercialization.

Language: Английский

Buried interface molecular hybrid for inverted perovskite solar cells DOI

Sanwan Liu,

Jingbai Li,

Wenshan Xiao

et al.

Nature, Journal Year: 2024, Volume and Issue: 632(8025), P. 536 - 542

Published: June 26, 2024

Language: Английский

Citations

305
Co‐Self‐Assembled Monolayers Modified NiOx for Stable Inverted Perovskite Solar Cells DOI Creative Commons
Qi Cao, Tianyue Wang, Xingyu Pu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)

Published: Jan. 11, 2024

Abstract [4‐(3,6‐dimethyl‐9H‐carbazol‐9yl)butyl]phosphonic acid (Me‐4PACz) self‐assembled molecules (SAM) are an effective method to solve the problem of buried interface NiO x in inverted perovskite solar cells (PSCs). However, Me‐4PACz end group (carbazole core) cannot forcefully passivate defects at bottom film. Here, a Co‐SAM strategy is employed modify PSCs. doped with phosphorylcholine chloride (PC) form improve monolayer coverage and reduce leakage current. The phosphate ions (Cl − ) PC can inhibit surface defects. Meantime, quaternary ammonium Cl fill organic cations halogen vacancies film enable passivation. Moreover, promote growth crystals, collaboratively defects, suppress nonradiative recombination, accelerate carrier transmission, relieve residual stress Consequently, modified devices show power conversion efficiencies as high 25.09% well excellent device stability 93% initial efficiency after 1000 h operation under one‐sun illumination. This work demonstrates novel approach for enhancing performance PSCs by modifying on .

Language: Английский

Citations

92
Strategies for Improving Efficiency and Stability of Inverted Perovskite Solar Cells DOI
Wenxiao Zhang, Xuemin Guo,

Zhengbo Cui

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: March 1, 2024

Abstract Perovskite solar cells (PSCs) have attracted widespread research and commercialization attention because of their high power conversion efficiency (PCE) low fabrication cost. The long‐term stability PSCs should satisfy industrial requirements for photovoltaic devices. Inverted with a p‐i‐n architecture exhibit considerable advantages excellent competitive efficiency. continuously broken‐through PCE inverted shows huge application potential. This review summarizes the developments outlines characteristics including charge transport layers (CTLs), perovskite compositions, interfacial regulation strategies. latest effective CTLs, modification, promotion strategies especially under light, thermal, bias conditions are emphatically analyzed. Furthermore, applications structure in high‐efficiency stable tandem, flexible devices, modules main obstacles systematically introduced. Finally, remaining challenges faced by devices discussed, several directions advancing proposed according to development status industrialization requirements.

Language: Английский

Citations

51
High‐Efficiency Perovskite Solar Cells with Improved Interfacial Charge Extraction by Bridging Molecules DOI
Minghao Li, Boxin Jiao, Ying-Chen Peng

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(38)

Published: July 26, 2024

The interface between the perovskite layer and electron transporting is a critical determinate for performance stability of solar cells (PSCs). heterogeneity critically affects carrier dynamics at buried interface. To address this, bridging molecule, (2-aminoethyl)phosphonic acid (AEP), introduced modification SnO

Language: Английский

Citations

40
Effective Dual Cation Release in Quasi‐2D Perovskites for Ultrafast UV Light‐Powered Imaging DOI
Xinyu Zhang, Ziqing Li, Enliu Hong

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 17, 2024

Ruddlesden-Popper quasi-2D perovskites represent robust candidates for optoelectronic applications, achieving a delicate balance between outstanding photoresponse and stability. However, mitigating the internal defects in polycrystalline films remains challenging, their performances still lag behind that of 3D counterparts. This work highlights profound impact defect passivation at buried interface grain boundaries through dual-cation-release strategy. Cations released from pre-deposited inorganic iodide buffer layer effectively repair deep-level by inducing low-dimensional phase reconstruction interacting with undercoordinated ions. The resulting perovskite feature large size (>2 µm) minimum surface roughness, along alleviated out-of-plane residual tensile strain, which is beneficial inhibiting initiation propagation cracks. fabricated photodetector demonstrates drastically improved self-powered capability, maximum responsivity up to 0.41 A W

Language: Английский

Citations

19
Charge Transfer in 2D Halide Perovskites and 2D/3D Heterostructures DOI
Chenjian Lin, Yuanhao Tang, Wenzhan Xu

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(8), P. 3877 - 3886

Published: July 17, 2024

Halide perovskites have emerged as a versatile class of materials, with applications spanning photovoltaics, light-emitting diodes, transistors, and photodetectors. The introduction semiconducting ligands to form two-dimensional (2D) on the surface three-dimensional (3D) in perovskite solar cells has been shown enhance performance stability. To improve interface properties between 3D layer charge carrier transport layers, understanding transfer (CT) process 2D is crucial. In this Perspective, we address common terminological inaccuracies energy level descriptions, delineate methods for alignment characterization, present practical instances CT perovskite-incorporated cells. We emphasize significance precise terminology, appropriate measurement techniques, rational design harness full potential optoelectronic applications.

Language: Английский

Citations

18
Improved Conductivity of 2D Perovskite Capping Layer for Realizing High-Performance 3D/2D Heterostructured Hole Transport Layer-Free Perovskite Photovoltaics DOI
Xi Chen,

Wenhuai Feng,

Yuxuan Fang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Perovskite solar cells (PSCs) have emerged as low-cost photovoltaic representatives. Constructing three-dimensional (3D)/two-dimensional (2D) perovskite heterostructures has been shown to effectively enhance the efficiency and stability of PSCs. However, further enhancement device performance is still largely limited by inferior conductivity 2D capping layer its mismatched energy level with 3D layer. Here, we developed an effective surface modification strategy via synergically incorporating inorganic high valence-state niobium ion (Nb5+) metal dopants organic ammonium halide salts in situ construct a high-quality on top underlying As result, was enhanced 43%, barrier between layers favorably reduced, built-in electric field 3D/2D heterostructured stacks enlarged. In addition, also reduced defect densities up 29%, verified space-charge-limited-current (SCLC) tests. Benefiting from facilitated charge extraction suppressed non-radiative recombination, blade-coated hole transport layer-free PSCs based this optimized film achieved 23.2%, ∼19% higher than that control (19.5%), which represented one best-performing simplified architecture fabricated scalable fabrication technique. The modified perovskite-based exhibited improved operational stability.

Language: Английский

Citations

4
Rational design of pyridine bidentate molecules for surface passivating carbon-based perovskite solar cells DOI

Mengqi Geng,

Yun-Bao Li, Yingnan Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161648 - 161648

Published: March 1, 2025

Language: Английский

Citations

2
Lewis Base Strategy for Crystallization Control and Buried Interface Passivation on Hydrophobic PTAA Substrate for Efficient Tin–Lead Perovskite and All-Perovskite Tandem Solar Cells DOI
Jinling Chen, Jiajun Du,

Jingyu Cai

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1117 - 1128

Published: Feb. 7, 2025

Language: Английский

Citations

1
Restrictive Heterointerfacial Delamination in Flexible Perovskite Photovoltaics Using a Bifacial Linker DOI Open Access
Xuejie Zhu, Y. S. Li, Qunqing Li

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Abstract Flexible perovskite solar cells offer significant potential for portable electronics due to their exceptional power density. However, the commercialization of these devices is hampered by challenges related mechanical flexibility, primarily inadequate adhesion between absorber layer and flexible substrate. Herein, this delamination issue addressed employing a bifacial linker, potassium benzyl(trifluoro)borate (BnBF 3 K), enhance at SnO 2 /perovskite interface. This approach not only improves stability but also reduces buried surface defects optimizes energy level alignment. Consequently, record efficiency 21.82% (certified 21.39%) achieved module with an area 12.80 cm high 24.15% cell. Furthermore, modules exhibit outstanding retaining 96.56% initial after 6000 bending cycles, demonstrating suitability various practical applications.

Language: Английский

Citations

1