Dapeng Wei

Dr. Dapeng Wei

orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 March 2019 in ACS Applied Materials & Interfaces
Verified
Journal Article
Closed access
Jun YangJun Yang
Jun Yang
SLShi Luo
Shi Luo
XZXi Zhou
Xi Zhou
JLJialu Li
Jialu Li
JFJianting Fu
Jianting Fu
DWDapeng Wei
Dapeng Wei

23 February 2015 in RSC Advances
Verified
Journal Article
Closed access
PDF file
Jun YangJun Yang
Jun Yang
DWDapeng Wei
Dapeng Wei
LTLinlong Tang
Linlong Tang
XSXuefen Song
Xuefen Song
WLWei Luo
Wei Luo
CDChunlei Du
Chunlei Du
We demonstrate an ultrasensitive wearable temperature sensor prepared using an emerging material, graphene nanowalls (GNWs), and its ease of combination with polydimethylsiloxane (PDMS). Fabrication of the sensor allows for a polymer-assisted transfer method making it considerably facile, biocompatible and cost effective. The resultant device exhibits a positive temperature coefficient of resistivity (TCR) as high as 0.214 °C−1, which is three fold higher than that of conventional counterparts. We attribute this to the excellent stretchability and thermal sensitivity of GNWs together with the large expansion coefficient of PDMS. Moreover, the sensor is capable of monitoring body temperature in real time, and it presents a quite fast response/recovery speed as well as long term stability. Such wearable temperature sensors could constitute a significant step towards integration with the next frontier in personalized healthcare and human–machine interface systems.

25 April 2021 in ACS Applied Materials & Interfaces
Verified
Journal Article
Closed access
XTXinyue Tang
Xinyue Tang
WYWeidong Yang
Weidong Yang
SYShuran Yin
Shuran Yin
GTGuojun Tai
Guojun Tai
MSMin Su
Min Su
Jun YangJun Yang
Jun Yang

3 February 2021 in Accounts of Chemical Research
Verified
Journal Article
Closed access
KYKongyang Yi
Kongyang Yi
DLDonghua Liu
Donghua Liu
XCXiaosong Chen
Xiaosong Chen
Jun YangJun Yang
Jun Yang
DWDapeng Wei
Dapeng Wei
Dacheng WeiDacheng Wei
Dacheng Wei

15 January 2018 in Nature Communications
Verified
Journal Article
Open access
PDF file
DLDonghua Liu
Donghua Liu
XCXiaosong Chen
Xiaosong Chen
YHYibin Hu
Yibin Hu
TSTai Sun
Tai Sun
ZSZhibo Song
Zhibo Song
Dacheng WeiDacheng Wei
Dacheng Wei
Graphene is regarded as a potential surface-enhanced Raman spectroscopy (SERS) substrate. However, the application of graphene quantum dots (GQDs) has had limited success due to material quality. Here, we develop a quasi-equilibrium plasma-enhanced chemical vapor deposition method to produce high-quality ultra-clean GQDs with sizes down to 2 nm directly on SiO2/Si, which are used as SERS substrates. The enhancement factor, which depends on the GQD size, is higher than conventional graphene sheets with sensitivity down to 1 × 10−9 mol L−1 rhodamine. This is attributed to the high-quality GQDs with atomically clean surfaces and large number of edges, as well as the enhanced charge transfer between molecules and GQDs with appropriate diameters due to the existence of Van Hove singularities in the electronic density of states. This work demonstrates a sensitive SERS substrate, and is valuable for applications of GQDs in graphene-based photonics and optoelectronics.

28 September 2021 in Nano Letters
Verified
Journal Article
Closed access
HKHua Kang
Hua Kang
Xuejun WangXuejun Wang
Xuejun Wang
MGMingquan Guo
Mingquan Guo
CDChanghao Dai
Changhao Dai
RCRenzhong Chen
Renzhong Chen
Dacheng WeiDacheng Wei
Dacheng Wei