PMID- 24827004
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150330
LR  - 20140529
IS  - 2040-3372 (Electronic)
IS  - 2040-3364 (Linking)
VI  - 6
IP  - 12
DP  - 2014 Jun 21
TI  - Large-scale, solution-phase growth of semiconductor nanocrystals into ultralong 
      one-dimensional arrays and study of their electrical properties.
PG  - 6828-36
LID - 10.1039/c4nr00163j [doi]
AB  - One-dimensional (1D) assemblies of semiconductor nanocrystals (NCs) represent an 
      important kind of 1D nanomaterial system due to their potential for exploring 
      novel and enhanced electronic and photonic performances of devices. Herein, we 
      present mass fabrication of a series of 1D arrays of CdSe and PbSe NCs on a large 
      length scale with ultralong, aligned Se nanowires (NWs) as both the reactant and 
      structure-directing template. The 1D self-assembly patterns are the anchored 
      growth of CdSe quantum dots (QDs) on the surface of Se NWs (i.e., 1D Se NWs/CdSe 
      QDs core-shell heterostructure) and 1D aggregates of unsupported PbSe NCs formed 
      by substantially increased collective particle-particle interactions. The size of 
      CdSe QDs and shape of PbSe NCs in the 1D arrays can be effectively controlled by 
      varying the synthetic conditions. Room temperature electrical measurements on the 
      1D Se/CdSe heterostructure field effect transistors (FETs) exhibit a pronounced 
      improvement in the on/off ratio, device carrier mobility, and transconductance 
      compared to the Se NW FETs fabricated in parallel. Furthermore, upon visible 
      light excitation, the photocurrent from the Se/CdSe heterostructure FETs 
      responses sharply (small time constant) and increases linearly with increasing 
      the light intensity, indicating excellent photoconductive properties.
FAU - Ma, Yuchao
AU  - Ma Y
AD  - State Key Laboratory of Materials-Oriented Chemical Engineering, School of 
      Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing, 21009, 
      China. ytan@njtech.edu.cn.
FAU - Xue, Mengmeng
AU  - Xue M
FAU - Shi, Jiahua
AU  - Shi J
FAU - Tan, Yiwei
AU  - Tan Y
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Nanoscale
JT  - Nanoscale
JID - 101525249
EDAT- 2014/05/16 06:00
MHDA- 2014/05/16 06:01
CRDT- 2014/05/16 06:00
PHST- 2014/05/16 06:00 [entrez]
PHST- 2014/05/16 06:00 [pubmed]
PHST- 2014/05/16 06:01 [medline]
AID - 10.1039/c4nr00163j [doi]
PST - ppublish
SO  - Nanoscale. 2014 Jun 21;6(12):6828-36. doi: 10.1039/c4nr00163j.