Photodetector Based on Spontaneously Grown Strongly Coupled MAPbBr3/N-rGO Hybrids Showing Enhanced Performance
(2020) In ACS Applied Materials and Interfaces 12(1). p.858-867- Abstract
Recently, metal-halide perovskites have emerged as a candidate for optoelectronic applications such as photodetectors. However, the poor device performance and instability have limited their future commercialization. Herein, we report the spontaneous growth of perovskite/N-rGO hybrid structures using a facile solution method and their applications for photodetectors. In the hybrid structures, perovskites were homogeneously wrapped by N-rGO sheets through strong hydrogen bonding. The strongly coupled N-rGOs facilitate the charge carrier transportation across the perovskite crystals but also distort the surface lattice of the perovskite creating a potential barrier for charge transfer. We optimize the addition of N-rGO in the hybrid... (More)
Recently, metal-halide perovskites have emerged as a candidate for optoelectronic applications such as photodetectors. However, the poor device performance and instability have limited their future commercialization. Herein, we report the spontaneous growth of perovskite/N-rGO hybrid structures using a facile solution method and their applications for photodetectors. In the hybrid structures, perovskites were homogeneously wrapped by N-rGO sheets through strong hydrogen bonding. The strongly coupled N-rGOs facilitate the charge carrier transportation across the perovskite crystals but also distort the surface lattice of the perovskite creating a potential barrier for charge transfer. We optimize the addition of N-rGO in the hybrid structures to balance interfacial structural distortion and the intercrystal conductivity. High-performance photodetection up to 3 × 104 A/W, external quantum efficiency exceeding 105%, and detectivity up to 1012 Jones were achieved in the optimal device with the weight ratio between perovskites and N-rGO to be 8:1.5. The underlying mechanism behind the optimal N-rGO addition ratio in the hybrids has also been rationalized via time-resolved spectroscopic studies as a reference for future applications.
(Less)
- author
- Tang, Yingying ; Liang, Mingli ; Zhang, Minwei ; Honarfar, Alireza ; Zou, Xianshao LU ; Abdellah, Mohamed LU ; Pullerits, Tönu LU ; Zheng, Kaibo LU and Chi, Qijin
- organization
- publishing date
- 2020-01-08
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- hybrid material, hydrogen bonding, perovskite/N-rGO, photodetector, time-resolved spectroscopy
- in
- ACS Applied Materials and Interfaces
- volume
- 12
- issue
- 1
- pages
- 10 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:31820629
- scopus:85077453046
- ISSN
- 1944-8244
- DOI
- 10.1021/acsami.9b18598
- language
- English
- LU publication?
- yes
- id
- 46075407-c882-402a-8403-e23e4edac45e
- date added to LUP
- 2020-01-20 17:05:42
- date last changed
- 2024-08-08 13:20:59
@article{46075407-c882-402a-8403-e23e4edac45e, abstract = {{<p>Recently, metal-halide perovskites have emerged as a candidate for optoelectronic applications such as photodetectors. However, the poor device performance and instability have limited their future commercialization. Herein, we report the spontaneous growth of perovskite/N-rGO hybrid structures using a facile solution method and their applications for photodetectors. In the hybrid structures, perovskites were homogeneously wrapped by N-rGO sheets through strong hydrogen bonding. The strongly coupled N-rGOs facilitate the charge carrier transportation across the perovskite crystals but also distort the surface lattice of the perovskite creating a potential barrier for charge transfer. We optimize the addition of N-rGO in the hybrid structures to balance interfacial structural distortion and the intercrystal conductivity. High-performance photodetection up to 3 × 10<sup>4</sup> A/W, external quantum efficiency exceeding 10<sup>5</sup>%, and detectivity up to 10<sup>12</sup> Jones were achieved in the optimal device with the weight ratio between perovskites and N-rGO to be 8:1.5. The underlying mechanism behind the optimal N-rGO addition ratio in the hybrids has also been rationalized via time-resolved spectroscopic studies as a reference for future applications.</p>}}, author = {{Tang, Yingying and Liang, Mingli and Zhang, Minwei and Honarfar, Alireza and Zou, Xianshao and Abdellah, Mohamed and Pullerits, Tönu and Zheng, Kaibo and Chi, Qijin}}, issn = {{1944-8244}}, keywords = {{hybrid material; hydrogen bonding; perovskite/N-rGO; photodetector; time-resolved spectroscopy}}, language = {{eng}}, month = {{01}}, number = {{1}}, pages = {{858--867}}, publisher = {{The American Chemical Society (ACS)}}, series = {{ACS Applied Materials and Interfaces}}, title = {{Photodetector Based on Spontaneously Grown Strongly Coupled MAPbBr<sub>3</sub>/N-rGO Hybrids Showing Enhanced Performance}}, url = {{http://dx.doi.org/10.1021/acsami.9b18598}}, doi = {{10.1021/acsami.9b18598}}, volume = {{12}}, year = {{2020}}, }