-
Graded multilayer triple cation perovskites for high speed and detectivity self-powered photodetector via scalable spray coating process
- Back
Document Title
Graded multilayer triple cation perovskites for high speed and detectivity self-powered photodetector via scalable spray coating process
Author
Amratisha K., Tuchinda W., Ruankham P., Naikaew A., Pansa-Ngat P., Srathongsian L., Wattanathana W., Shin Thant K.K., Supruangnet R., Nakajima H., Sahasithiwat S., Kanjanaboos P.,
Name from Authors Collection
Scopus Author ID
56420003800
Scopus Author ID
57771623600
Scopus Author ID
36722308100
Scopus Author ID
56708775200
Scopus Author ID
57194761134
Scopus Author ID
57223409786
Scopus Author ID
57771996400
Scopus Author ID
16054038800
Scopus Author ID
57771557300
Affiliations
School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom, 73170, Thailand; Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Research Center in Physics and Astronomy, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand; Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000, Thailand; National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Pathum Thani, 12120, Thailand; Center of Excellence for Innovation in Chemistry (PERCH-CIC), Ministry of Higher Education, Science, Research and Innovation, Bangkok, 10400, Thailand
Type
Article
Source Title
Scientific Reports
ISSN
20452322
Year
2022
Volume
12
Issue
1
Open Access
Gold, Green
Publisher
Nature Research
DOI
10.1038/s41598-022-14774-x
Format
Abstract
Rapid advancements in perovskite materials have led to potential applications in various optoelectronic devices, such as solar cells, light-emitting diodes, and photodetectors. Due to good photoelectric properties, perovskite enables low-cost and comparable performance in terms of responsivity, detectivity, and speed to those of the silicon counterpart. In this work, we utilized triple cation perovskite, well known for its high performance, stability, and wide absorption range, which is crucial for broadband photodetector applications. To achieve improved detectivity and faster response time, graded multilayer perovskite absorbers were our focus. Sequential spray deposition, which allows stacked perovskite architecture without disturbing lower perovskite layers, was used to generate single, double, and triple-layer perovskite photodetectors with proper energy band alignment. In this work, we achieved a record on self-powered perovskite photodetector fabricated from a scalable spray process in terms of EQE and responsivity of 65.30% and 0.30 A W-1. The multilayer devices showed faster response speed than those of single-layer perovskite photodetectors with the champion device reaching 70 µs and 88 µs for rising and falling times. The graded band structure and the internal electric field generated from perovskite heterojunction also increase specific detectivity about one magnitude higher in comparison to the single-layer with the champion device achieving 6.82 × 1012 cmHz1/2 W−1. © 2022, The Author(s).
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
B05F640218; JSM-7610FPlus; Thailand Toray Science Foundation; Chiang Mai University; Center of Excellence for Innovation in Chemistry; Ministry of Higher Education, Science, Research and Innovation, Thailand; Office of National Higher Education Science Research and Innovation Policy Council
License
CC BY
Rights
Author
Publication Source
Scopus