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008			110310s2009 th uu|m rtt 0| a1eng d
035			_a.b12091741
099		9	_aAIT Thesis no.ME-09-02
100	1		_aKhan, Zaheer Abbas
245	1	0	_aCharacterisation of discrete electronics devices using thin layer fabrication with nano particles
260			_aPathum Thani, Thailand : _bAsian Institute of Technology, _c2009
300			_a1 online resource (40 p.) : _billl.
490	1		_aThesis ; _vno. ME-09-02
500			_aA research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Microelectronics, School of Engineering and Technology
502			_aThesis (M.Eng.) - Asian Institute of Technology, 2009
520			_aNanometer-sized particles (gold and zinc sulphide) are considered to be the mostimportant fundamental building blocks for the future discrete electronic devices. Colloidalnano particles ( 20 nm) are differentiated from much smaller particles (molecules) because{u223C}their intrinsic properties still usually resembles with a bulk-like behavior. Nano crystallinethin films have been the subject of huge scientific and technological efforts over the pasttwo decades due to their interesting physicochemical, mechanical and electrical properties.The fabrication of alternate metal and insulator multilayer present numerous feasibleapplications in electronic devices (diodes, transistors, electronic memories, etc).However,there are numerous challenges and questions regarding the stability of the nano particles incolloids, thickness and quality of the thin films, that must be addressed before nanoparticletechnologies can be implemented successfully.Attempts were made to understand andcontrol nanoparticle aggregation processes that have been brought about using concepts ofmolecular recognition.New methods for assembling nanoparticles together into multilayerdevices with more complex electronic functions are also required.This study highlights our recent progress toward characterizing thin layerfabrication using electrostatically stabilized gold nanoparticles as a function of cappingcharge state while zinc sulphide was electrosterically stablised by chitoson (a bio polymer).The idea of introducing the buffer solutions (acetate and citrate) between the alternatedepositing of metal (Gold) and insulator (ZnS) bi-layers helped to remove the aggregationof these nanoparticles. The experiments that performed, have concluded that by controllingthe concentration and pH of the colloidal solutions, a remarkable improvement is observedin the electrical and optical properties of deposited layers.The possibility of fabricating thin films has opened new horizons to find practicalapplications of these devices in future microelectronic circuits.
650		0	_aNanoelectromechanical systems
650		0	_aNanoelectronics
650		0	_aNanoparticles
700	1		_aDutta, Joydeep, _eChairperson
700	1		_aBohez, Erik L.J., _eExamination Committee
700	0		_aChanchana Thanachayanont, _eExamination Committee
710	2		_aHigher Education Commission (HEC), Pakistan, _eScholarship Donor
710	2		_aAsian Institute of Technology Fellowship, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. ME-09-02
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B03439
907			_a.b12091741 _bmnait _cu
902			_a240402
998			_b0 _c110310 _dm _ea _fu _g0
962			_a000:001:PDF:b1209174:000548:0:0:0:0:0:0 _tAbstract-AIT Thesis no.ME-09-02 _vn
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