Buried Interface Regulation by Bio‐Functional Molecules for Efficient and Stable Planar Perovskite Solar Cells

Pang, Xuerui; Huang, Jing; Lin, Chunxia; Zhang, Yingfang; Cheng, Nian; Zi, Wei; Sun, Zhu-Zhu; Yu, Zhen; Zhao, Zhiqiang

doi:10.1002/chem.202202744

“…The efficiency of the devices was improved from 18.8% (control devices without interface modifier) to 20.6%. (Pang et al, 2023).…”

Section: Photoactive Materials and Charge Selective Layersmentioning

confidence: 99%

Bio‐based materials for solar cells

Miettunen,

Hadadian,

García

et al. 2024

WIREs Energy & Environment

2

0

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Plant‐based materials are emerging as an alternative to conventional components in advanced energy applications. Among these, energy harvesting from sunlight is highly attractive and, in fact, represents the fastest growing energy technology. This review addresses the broad field of solar cell science since plant‐based components can be utilized in almost all solar technologies, and in certain photovoltaic technologies, they can fulfill most of the roles in photovoltaic devices. There is strengthened recent interest in developing sustainable materials options as well as new functionalities being developed for bio‐based materials. This contribution describes the different options for plant‐derived materials in photovoltaics and discusses their deployment feasibility. We focus on performance, lifetime, and embedded energy, all of which are critical to achieve—economically and sustainably–competitive photovoltaic devices. We address the tendency in the current literature for greenwashing, given that not all plant‐based solutions are environmentally‐sound at the device level. On the other hand, plant‐based materials can offer functionalities that cannot be reached with currently used materials.This article is categorized under: Sustainable Energy > Solar Energy Emerging Technologies > Materials Sustainable Energy > Bioenergy

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Molecular Bridge on Buried Interface for Efficient and Stable Perovskite Solar Cells

Guo

¹

,

Xiang

²

,

Fang

³

et al. 2023

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The interface of perovskite solar cells (PSCs) is significantly important for charge transfer and device stability, while the buried interface with the impact on perovskite film growth has been paid less attention. Herein, we use a molecular modifier, glycocyamine (GDA) to build a molecular bridge on the buried interface of SnO2/perovskite, resulting in superior interfacial contact. This is achieved through the strongly interaction between GDA and SnO2, which also appreciably modulates the energy level. Moreover, GDA can regulate the perovskite crystal growth, yielding perovskite film with enlarged grain size and absence of pinholes, exhibiting substantially reduced defect density. Consequently, PSCs with GDA modification demonstrate significant improvement of open circuit voltage (close to 1.2 V) and fill factor, leading to an improved power conversion efficiency from 22.60 % to 24.70 %. Additionally, stabilities of GDA devices under maximum power point and 85 °C heat both perform better than the control devices.

show abstract

Molecular Bridge on Buried Interface for Efficient and Stable Perovskite Solar Cells

Guo

¹

,

Xiang

²

,

Fang

³

et al. 2023

View full text Add to dashboard Cite

The interface of perovskite solar cells (PSCs) is significantly important for charge transfer and device stability, while the buried interface with the impact on perovskite film growth has been paid less attention. Herein, we use a molecular modifier, glycocyamine (GDA) to build a molecular bridge on the buried interface of SnO2/perovskite, resulting in superior interfacial contact. This is achieved through the strongly interaction between GDA and SnO2, which also appreciably modulates the energy level. Moreover, GDA can regulate the perovskite crystal growth, yielding perovskite film with enlarged grain size and absence of pinholes, exhibiting substantially reduced defect density. Consequently, PSCs with GDA modification demonstrate significant improvement of open circuit voltage (close to 1.2 V) and fill factor, leading to an improved power conversion efficiency from 22.60 % to 24.70 %. Additionally, stabilities of GDA devices under maximum power point and 85 °C heat both perform better than the control devices.

show abstract

Buried Interface Regulation by Bio‐Functional Molecules for Efficient and Stable Planar Perovskite Solar Cells

Cited by 4 publications

References 62 publications

Bio‐based materials for solar cells

Bio‐based materials for solar cells

Molecular Bridge on Buried Interface for Efficient and Stable Perovskite Solar Cells

Molecular Bridge on Buried Interface for Efficient and Stable Perovskite Solar Cells

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