Characteristics of MAPbI<sub>3</sub> Stacked on the GaN Nanowires-On-Glassopen access
- Authors
- Lee, Kwang Jae; Kim, Yeong Jae; Min, Jung-Hong; Kang, Chun Hong; Subedi, Ram Chandra; Zhang, Huafan; Al-Maghrabi, Latifah; Park, Kwangwook; Ahn, Dante; Pak, Yusin; Ng, Tien Khee; Song, Young Min; Ooi, Boon S.; Bakr, Osman M.; Min, Jungwook
- Issue Date
- May-2024
- Publisher
- WILEY
- Keywords
- electron transport layer; GaN nanowires; GaN-on-glass; MAPbI(3); photodetector; solar cell
- Citation
- ADVANCED ELECTRONIC MATERIALS
- Journal Title
- ADVANCED ELECTRONIC MATERIALS
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/28781
- DOI
- 10.1002/aelm.202400095
- ISSN
- 2199-160X
- Abstract
- When implementing optoelectronic devices through the stacking of heterogeneous materials, considering the bandgap offset is crucial for achieving efficient carrier dynamics. In this study, the bandgap offset characteristics are investigated when n-type gallium nitride nanowires (n-GaN NWs) are used as electron transport layers in methylammonium lead iodide (MAPbI(3))-based optoelectronic devices. n-GaN NWs are grown on indium-tin-oxide (ITO)-coated glass via the plasma-assisted molecular beam epitaxy (PA-MBE) process to form the "GaN NWs-on-glass" platform. A MAPbI(3) thin film is then spin-coated on the GaN NWs-on-glass. X-ray photoelectron spectroscopy (XPS) shows that the valence and conduction band offsets in the MAPbI(3)/n-GaN heterostructure are 2.19 and 0.40 eV, respectively, indicating a type-II band alignment ideal for optoelectronic applications. Prototype photovoltaic devices stacking perovskite on GaN NWs-on-glass show excellent interfacial charge-transfer ability, photon recycling, and carrier extraction efficiency. As a pioneering step in exploiting the diverse potential of the GaN-on-glass, it is demonstrated that the junction characteristics of MAPbI(3)/n-GaN NW heterostructures can lead to a variety of optoelectronic device applications.
- Files in This Item
-
- Appears in
Collections - Department of Optical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/28781)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.