5‐Chloro‐2‐Hydroxypyridine Derivatives with Push‐Pull Electron Structure Enable Durable and Efficient Perovskite Solar Cells DOI Open Access

Can Zheng,

Lidan Liu,

Yong Li

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(39)

Published: Sept. 3, 2023

Abstract Targeted passivation of defects in perovskite is the primary consideration design additives containing functional groups. However, precise modulation electron structure groups and structure‐activity relationship between electronic configuration performance solar cells (PSCs) still need to be explored. In this study, 5‐chloro‐2‐hydroxypyridine derivatives with –NH 2 (HNCLP) –F (HFCLP) end are selected realize push‐pull configuration. Density theory demonstrates that, compared HFCLP, HNCLP electron‐donating terminal has a long dipole moment immobilize interstitial I 3 − , N side pyridine high‐density cloud enables strong undercoordinated Pb 2+ ions. The experimental results confirm that optimized emerges ability, greatly suppresses nonradiative recombination absorber, remarkably improves film crystal quality along extraction transfer process photogenerated carriers. HNCLP‐contained PSC exhibits remarkable efficiency 24.47%, helps enhance moisture‐proof device storage stability.

Language: Английский

Tailoring passivators for highly efficient and stable perovskite solar cells DOI
Hong Zhang, Lukas Pfeifer, Shaik M. Zakeeruddin

et al.

Nature Reviews Chemistry, Journal Year: 2023, Volume and Issue: 7(9), P. 632 - 652

Published: July 18, 2023

Language: Английский

Citations

198
Recent progress in perovskite solar cells: from device to commercialization DOI
Xinhui Luo, Xuesong Lin, Feng Gao

et al.

Science China Chemistry, Journal Year: 2022, Volume and Issue: 65(12), P. 2369 - 2416

Published: Nov. 3, 2022

Language: Английский

Citations

100
Multifunctional Small Molecule as Buried Interface Passivator for Efficient Planar Perovskite Solar Cells DOI

Meizi Wu,

Yuwei Duan, Lu Yang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(22)

Published: March 2, 2023

Abstract The improvement of power conversion efficiency (PCE) and stability the perovskite solar cell (PSC) is hindered by carrier recombination originating from defects at buried interface PSC. It crucial to suppress nonradiative facilitate transfer in PSC via engineering. Herein, P‐biguanylbenzoic acid hydrochloride (PBGH) developed modify tin oxide (SnO 2 )/perovskite interface. effects PBGH on transportation, growth, defect passivation, performance are systematically investigated. On one hand, can effectively passivate trap states Sn dangling bonds O vacancies SnO surface Lewis acid/base coordination, which conducive improving conductivity film accelerating electron extraction. other modification assists formation high‐quality with low density due its strong interaction PbI . Consequently, PBGH‐modified exhibits a champion 24.79%, highest PCEs among all FACsPbI 3 ‐based PSCs reported date. In addition, stabilities films devices under high temperature/humidity light illumination conditions also studied.

Language: Английский

Citations

84
Defect Management and Ion Infiltration Barrier Enable High-Performance Perovskite Solar Cells DOI
Heng Liu, Jiantao Wang,

Yating Qu

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 2790 - 2799

Published: May 17, 2024

The stability of perovskite solar cells (PSCs) has been considered as one the major obstacles toward practical application. Defects in layer and ion infiltration from hole transport (HTL) can trigger degradation n-i-p PSCs. Herein, phenylhydrazine-4-sulfonic acid (PHPA) was employed an additive to modulate crystallization during film formation, enlarging crystal grain sizes ∼3 μm. Density functional theory (DFT) calculations revealed that PHPA could effectively inhibit formation iodine vacancies (VI) passivate under-coordinated Pb2+ ions. Additionally, perfluorooctanoic (PFOA) adopted surface located dangling defects, improve hydrophobicity, Li+ migration HTL bottom perovskite, thus enhancing device's environmental operational stability. Consequently, resulting devices delivered a champion efficiency 25.1% with excellent maximum-power-point (MPP) tracking

Language: Английский

Citations

18
Vitamin Natural Molecule Enabled Highly Efficient and Stable Planar n–p Homojunction Perovskite Solar Cells with Efficiency Exceeding 24.2% DOI
Bin Liu, Yuqi Wang, Yanjie Wu

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(2)

Published: Nov. 23, 2022

Abstract The defect passivation and interface energetics‐modification between perovskite transport layers are significant for the further improvement of efficiency stability solar cells (PSCs). Here, a double‐layer modification engineering strategy is employed by different functionalized natural vitamins into electron layer perovskite, respectively. Considering role each functional in PSCs, vitamin C (VC) with high conductivity introduced SnO 2 , showing mobility enhancement, an energy‐levels offsets reduction, enhanced interfacial charge transfer. Meanwhile, antioxidant D2 (VD2) multiple passivating groups bulk to moderately tailor its intrinsic characteristics. surface energetics changed from n‐type p‐type, thickness p‐type 80 nm, thus spontaneous n–p homojunction formed caused VD2, which increases built‐in electric field hole extraction. synergistic effect VC VD2 better heightens extraction achieves charge‐carrier balance PSCs. optimum device power conversion 24.20% fill factor 81.01% negligible hysteresis. This among best PSCs employing molecules reported so far.

Language: Английский

Citations

53
Synchronous Modulation of Defects and Buried Interfaces for Highly Efficient Inverted Perovskite Solar Cells DOI

Yehui Xu,

Shaobing Xiong,

Sheng Jiang

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(3)

Published: Dec. 4, 2022

Abstract Suppressing nonradiative recombination in perovskite solar cells (PSCs) is crucial for increases their power conversion efficiency and operational stability. Here, it reported that the synchronous use of a molecule daminozide (DA), as an interlayer additive to judiciously construct PTAA:F4TCNQ/DA/perovskite:DA hole‐selective heterojunction diminishes thermionic losses collecting holes at buried interface between perovskites PTAA:F4TCNQ, reduces defect sites such interfaces well film. The proposed “three birds with one stone” strategy significantly promotes charge transport, both carrier defect‐assisted are suppressed. As result, remarkably improved 22.15% impressive fill factor 83.92% achieved excellent device stability compared 19.04% control device. two values highest records polycrystalline MAPbI 3 ‐based p‐i‐n structural PSCs date. work provides promising approach three stone, employing functional material further improvement PSC performance.

Language: Английский

Citations

40
Synergistic Full‐Scale Defect Passivation Enables High‐Efficiency and Stable Perovskite Solar Cells DOI Open Access

Haoxin Wen,

Zhen Zhang, Yixuan Guo

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(44)

Published: Oct. 8, 2023

Abstract Despite remarkable progress in perovskite solar cells (PSCs), the unsatisfying stability strongly interrelated with defect density remains main obstacle for commercialization. Herein, a synergetic passivation method is judiciously designed that consists of precursor engineering strategy based on an ionic liquid 1‐butylsulfonate‐3‐methylimidazolium dihydrogen phosphate (BMDP), and two‐stage annealing (TSA) treatment to sufficiently passivate defects enhance performance further. It found multifunctional groups from BMDP have strong chemical interactions form chelated complexes components thus effectively passivating intrinsic defects. Synergized by sequential TSA treatment, formed hydrophobic can be precisely controlled filling along grain boundaries (GBs) surfaces, leading wrapping grains significant GBs. Consequently, both deep‐ shallow‐level bulk, at GBs surface are passivated, resulting champion efficiency 24.20%. Impressively, resultant unencapsulated films corresponding devices exhibit admirable maintaining 83.9% initial composition 4000 h aging moist air, 81.7% original structure after continuous heating 1600 h, 97% power conversion 1000 under illumination. This work provides efficient toward improved PSCs.

Language: Английский

Citations

40
Synergistic dual-interface modification strategy for highly reproducible and efficient PTAA-based inverted perovskite solar cells DOI

Junqian Dai,

Jian Xiong,

Naihe Liu

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 453, P. 139988 - 139988

Published: Oct. 26, 2022

Language: Английский

Citations

39
Stable NiOx-based inverted perovskite solar cells achieved by passivation of multifunctional star polymer DOI
Xingyu Pu, Junsong Zhao, Yongjiang Li

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 112, P. 108506 - 108506

Published: May 5, 2023

Language: Английский

Citations

36
A Novel Organic Phosphonate Additive Induced Stable and Efficient Perovskite Solar Cells with Efficiency over 24% Enabled by Synergetic Crystallization Promotion and Defect Passivation DOI

Caidong Cheng,

Yiguo Yao,

Lei Li

et al.

Nano Letters, Journal Year: 2023, Volume and Issue: 23(19), P. 8850 - 8859

Published: Sept. 25, 2023

Defect passivation is crucial to enhancing the performance of perovskite solar cells (PSCs). In this study, we successfully synthesized a novel organic compound named DPPO, which consists double phosphonate group. Subsequently, incorporated DPPO into solution. The presence P═O group interacting with undercoordinated Pb2+ yielded film superior crystallinity, greater crystal orientation, and smoother surface. Additionally, addition can passivate defect states enhance upper layer energy level alignment, will improve carrier extraction prevent nonradiative recombination. Consequently, an impressive champion efficiency 24.24% was achieved minimized hysteresis. Furthermore, DPPO-modified PSCs exhibit enhanced durability when exposed ambient conditions, maintaining 95% initial for 1920 h at average relative humidity (RH) 30%.

Language: Английский

Citations

35