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A Review on Encapsulation Technology from Organic Light Emitting Diodes to Organic and Perovskite Solar Cells
Author(s) -
Lu Qian,
Yang Zhichun,
Meng Xin,
Yue Youfeng,
Ahmad Muhammad Ashfaq,
Zhang Wenjun,
Zhang Shasha,
Zhang Yiqiang,
Liu Zonghao,
Chen Wei
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202100151
Subject(s) - materials science , encapsulation (networking) , oled , organic solar cell , photovoltaic system , nanotechnology , photovoltaics , diode , organic electronics , optoelectronics , computer science , transistor , electrical engineering , polymer , composite material , computer network , engineering , layer (electronics) , voltage
Organic light emitting diodes (OLEDs) employing organic thin‐film based emitters have attracted tremendous attention due to their widespread applications in lighting and as displays in mobile devices and televisions. The novel thin‐film photovoltaic techniques using organic or organic–inorganic hybrid materials such as organic photovoltaics (OPVs) and perovskite solar cells (PSCs) have become emerging competitive candidates with regard to the traditional photovoltaic techniques on account of high‐efficiency, low‐cost, and simple manufacturing processing properties. However, OLEDs, OPVs, and PSCs are vulnerable to the undesired degradation induced by moisture and oxygen. To afford long‐term stability, a robust encapsulation technique by employing materials and structures that possess high barrier performance against oxygen and moisture must be explored and employed to protect these devices. Herein, the recent progress on specific encapsulation materials and techniques for three types of devices on the basis of fundamental understanding of device stability is reviewed. First, their degradation mechanisms, as well as, influencing factors are discussed. Then, the encapsulation technologies and materials are classified and discussed. Moreover, the advantages and disadvantages of various encapsulation technologies and materials coupled with their encapsulation applications in different devices are compared. Finally, the ongoing challenges and future perspectives of encapsulation frontier are provided.