Enhanced Buried Selective Contacts via Dual‐Sided Passivation for Efficient and Stable Perovskite Solar Cells DOI
Zhiyu Wang, Rui Su, Qianru Zhang

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Abstract Self‐assembled monolayers (SAMs) play a crucial role in high‐performance perovskite solar cells (PSCs). However, the incompatibility between nonpolar head groups of SAMs and polar precursor solutions leads to SAM assembly defects wettability issues, consequently impacting device efficiency. Moreover, uneven distribution hydroxyl on surface conventional transparent conductive oxide substrates is detrimental onto them. Here, dual‐sided passivation strategy reported based co‐adsorbed approach, which (4‐(3,6‐dimethyl‐9H‐carbazole‐9‐yl)butyl)phosphonic acid (Me‐4PACz) doped with phaclofen (PLF) self‐assembly NiO x substrate. By compensating for unanchored sites Me‐4PACz, phosphonic PLF adsorb surface, enabling more uniform ordered anchoring as well improved deposition. This optimized morphology enhanced interface contact. Additionally, amino passivate at buried interface, suppressing non‐radiative recombination during charge transport. The champion PSC fabricated using this achieves high fill factor 84.92%, power conversion efficiency 24.04%, excellent long‐term stability under ISOS‐D‐1I ISOS‐T‐1I protocols, maintaining over 85% initial after >1000 h thermal cycling conditions.

Язык: Английский

Self-Assembled Monolayer Materials with Multifunction for Antimony Selenosulfide Solar Cells DOI
Jing Wu, Fuling Guo, Chao Wang

и другие.

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Язык: Английский

Процитировано

0
Vacuum Processability of Self-Assembled Monolayers and Their Chemical Interaction with Perovskite Interfaces DOI Creative Commons
Hyeji Han, Siwon Yun, Zobia Irshad

и другие.

Energies, Год журнала: 2025, Номер 18(7), С. 1782 - 1782

Опубликована: Апрель 2, 2025

Self-assembled monolayers (SAMs) have gained significant attention as an interfacial engineering strategy for perovskite solar cells (PSCs) due to their efficient charge transport ability and work function tunability. While solution-based methods such dip-coating spin-coating are widely used SAM deposition, challenges non-uniform coverage, solvent contamination, limited control over molecular orientation hinder scalability reproducibility. In contrast, vacuum deposition techniques, including thermal evaporation, overcome these limitations by enabling the formation of highly uniform materials with precise thickness arrangement. Importantly, chemical interactions between layers, coordination bonding Pb2+ ions, play important role in passivating surface defects, modulating energy levels, promoting crystallization. These not only enhance wettability but also improve overall quality stability films. This review highlights advantages vacuum-deposited SAMs, strong layers improving properties critical scalable applications.

Язык: Английский

Процитировано

0
Guanidinium Iodide-Modified PEDOT:PSS Hole Transport Layer for Improving the Performance of 2D Perovskite Solar Cells DOI
Xiang Chen, Fei Zheng,

Yanna Hou

и другие.

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been widely used as a hole transporting layer (HTL) in two-dimensional (2D) Ruddlesden-Popper perovskite (RPP)-based solar cells (2D-PSCs) due to its simple preparation process and low cost. However, the devices based on PEDOT:PSS exhibit efficiency poor stability number of buried interfacial defects, energy level mismatching, corrosivity HTL. In this study, guanidinium iodide (GAI)-modified HTL was adopted tune crystallization 2D RPPs, leading formation films with preferential crystal orientation, improved crystallinity, suppressed defect density. The addition GAI not only enhances conductivity intrinsic layers but also improves their matching those films. Upon doping into PEDOT:PSS, power conversion 2D-PSCs increased from 13.11% 16.04% maintained 80% initial value under 65% relative humidity condition for 60 days. This work demonstrates novel synergetic modification strategy gives new insight underlying mechanism, which should lead further improvements performance other optoelectronic RPPs.

Язык: Английский

Процитировано

0
Enhanced Buried Selective Contacts via Dual‐Sided Passivation for Efficient and Stable Perovskite Solar Cells DOI
Zhiyu Wang, Rui Su, Qianru Zhang

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Abstract Self‐assembled monolayers (SAMs) play a crucial role in high‐performance perovskite solar cells (PSCs). However, the incompatibility between nonpolar head groups of SAMs and polar precursor solutions leads to SAM assembly defects wettability issues, consequently impacting device efficiency. Moreover, uneven distribution hydroxyl on surface conventional transparent conductive oxide substrates is detrimental onto them. Here, dual‐sided passivation strategy reported based co‐adsorbed approach, which (4‐(3,6‐dimethyl‐9H‐carbazole‐9‐yl)butyl)phosphonic acid (Me‐4PACz) doped with phaclofen (PLF) self‐assembly NiO x substrate. By compensating for unanchored sites Me‐4PACz, phosphonic PLF adsorb surface, enabling more uniform ordered anchoring as well improved deposition. This optimized morphology enhanced interface contact. Additionally, amino passivate at buried interface, suppressing non‐radiative recombination during charge transport. The champion PSC fabricated using this achieves high fill factor 84.92%, power conversion efficiency 24.04%, excellent long‐term stability under ISOS‐D‐1I ISOS‐T‐1I protocols, maintaining over 85% initial after >1000 h thermal cycling conditions.

Язык: Английский

Процитировано

0