PMID- 28489393
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180712
LR  - 20180712
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 33
IP  - 22
DP  - 2017 Jun 6
TI  - Ag(2)O/TiO(2) Nanocomposite Heterostructure as a Dual Functional Semiconducting 
      Substrate for SERS/SEIRAS Application.
PG  - 5345-5352
LID - 10.1021/acs.langmuir.7b00229 [doi]
AB  - Surface-enhanced Raman spectroscopy (SERS) and surface-enhanced infrared 
      absorption spectroscopy (SEIRAS) are complementary and powerful techniques for 
      molecular characterization and detection. However, studies on substrates that can 
      enhance both Raman and IR singles are extremely scanty. Here, we reported a 
      hybrid semiconductor material (Ag(2)O/TiO(2)) coupled with a portable solid 
      support served as a dual functional platform for both SERS and SEIRAS 
      applications. A facile two-step deposition method was used to synthesize 
      Ag(2)O/TiO(2) nanocomposite on a flexible polymeric membrane without bringing any 
      external chemical capping agent and background signal. The presence of Ag(2)O was 
      proposed to enrich the photogenerated electrons onto TiO(2) surface and 
      facilitate the photon-induced charge transfer (PICT) between TiO(2) and 
      adsorbate. The heterostructure of Ag(2)O/TiO(2) could bring additional 
      enhancement. The enhancement factor from such hybrid semiconducting substrate was 
      at least one or two orders of magnitude over traditional semiconducting materials 
      and comparable to noble metals. Additionally, this substrate enabled the 
      ultratrace detection regardless of the more Raman- or IR-active molecules and 
      displayed distinct quantitative capacities for SERS and SEIRAS. High 
      reproducibility of the SERS/SEIRAS spectra further confirmed the reliability and 
      reproducibility of our substrates.
FAU - Tan, Chen
AU  - Tan C
AUID- ORCID: 0000-0002-2428-9449
AD  - Department of Food Science, University of Massachusetts , Amherst, Massachusetts 
      01003, United States.
FAU - Zhang, Zhiyun
AU  - Zhang Z
AD  - Department of Food Science, University of Massachusetts , Amherst, Massachusetts 
      01003, United States.
FAU - Qu, Yanqi
AU  - Qu Y
AD  - Department of Food Science, University of Massachusetts , Amherst, Massachusetts 
      01003, United States.
FAU - He, Lili
AU  - He L
AUID- ORCID: 0000-0002-5046-9857
AD  - Department of Food Science, University of Massachusetts , Amherst, Massachusetts 
      01003, United States.
LA  - eng
PT  - Journal Article
DEP - 20170522
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2017/05/11 06:00
MHDA- 2017/05/11 06:01
CRDT- 2017/05/11 06:00
PHST- 2017/05/11 06:00 [pubmed]
PHST- 2017/05/11 06:01 [medline]
PHST- 2017/05/11 06:00 [entrez]
AID - 10.1021/acs.langmuir.7b00229 [doi]
PST - ppublish
SO  - Langmuir. 2017 Jun 6;33(22):5345-5352. doi: 10.1021/acs.langmuir.7b00229. Epub 
      2017 May 22.