PMID- 33291878
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201223
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 12
IP  - 51
DP  - 2020 Dec 23
TI  - Fully Inkjet-Printed Mesoporous SnO(2)-Based Ultrasensitive Gas Sensors for Trace 
      Amount NO(2) Detection.
PG  - 57207-57217
LID - 10.1021/acsami.0c14704 [doi]
AB  - Printed sensors are among the most successful groups of devices within the domain 
      of printed electronics, both in terms of their application versatility and the 
      emerging market share. However, reports on fully printed gas sensors are rare in 
      the literature, even though it can be an important development toward fully 
      printed multisensor platforms for diagnostics, process control, and environmental 
      safety-related applications. In this regard, here, we present the traditional tin 
      oxide-based completely inkjet-printed co-continuous and mesoporous thin films 
      with an extremely large surface-to-volume ratio and then investigate their NO(2) 
      sensing properties at low temperatures. A method known as evaporation-induced 
      self-assembly (EISA) has been mimicked in this study using pluronic F127 
      (PEO(106)-PPO(70)-PEO(106)) as the soft templating agent and xylene as the 
      micelle expander to obtain highly reproducible and spatially homogeneous 
      co-continuous mesoporous crystalline SnO(2) with an average pore diameter of the 
      order of 15-20 nm. The fully printed SnO(2) gas sensors thus produced show high 
      linearity for NO(2) detection, along with extremely high average response of 
      11,507 at 5 ppm NO(2). On the other hand, the sensors show an ultralow detection 
      limit of the order of 20 ppb with an easy to amplify response of 31. While the 
      excellent electronic transport properties along such co-continuous, mesoporous 
      structures are ensured by their well-connected (co-continuous) ligaments and 
      pores (thereby ensuring high surface area and high mobility transport at the same 
      time) and may actually be responsible for the outstanding sensor performance that 
      has been observed, the use of an industrial printing technique ascertains the 
      possibility of high-throughput manufacturing of such sensor units toward 
      inexpensive and wide-range applications.
FAU - Devabharathi, Nehru
AU  - Devabharathi N
AD  - Department of Materials Engineering, Indian Institute of Science (IISc), C V 
      Raman Avenue, Bangalore, Karnataka 560012, India.
FAU - M Umarji, Arun
AU  - M Umarji A
AUID- ORCID: 0000-0002-3167-7060
AD  - Materials Research Centre, Indian Institute of Science (IISc), C V Raman Avenue, 
      Bangalore, Karnataka 560012, India.
FAU - Dasgupta, Subho
AU  - Dasgupta S
AUID- ORCID: 0000-0002-3952-2952
AD  - Department of Materials Engineering, Indian Institute of Science (IISc), C V 
      Raman Avenue, Bangalore, Karnataka 560012, India.
LA  - eng
PT  - Journal Article
DEP - 20201208
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
SB  - IM
OTO - NOTNLM
OT  - NO2 sensor
OT  - co-continuous mesoporous structure
OT  - evaporation-induced self-assembly
OT  - inkjet printing
OT  - tin oxide
EDAT- 2020/12/10 06:00
MHDA- 2020/12/10 06:01
CRDT- 2020/12/09 05:40
PHST- 2020/12/10 06:00 [pubmed]
PHST- 2020/12/10 06:01 [medline]
PHST- 2020/12/09 05:40 [entrez]
AID - 10.1021/acsami.0c14704 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2020 Dec 23;12(51):57207-57217. doi: 
      10.1021/acsami.0c14704. Epub 2020 Dec 8.