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Carbon Single Wall Nanotubes: Low Ba...

Khanal, Rajendra Raj.

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Carbon Single Wall Nanotubes: Low Barrier, Cu- Free Back Contact to CdTe Based Solar Cells.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Carbon Single Wall Nanotubes: Low Barrier, Cu- Free Back Contact to CdTe Based Solar Cells./
作者:	Khanal, Rajendra Raj.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2014,
面頁冊數:	256 p.
附註:	Source: Dissertation Abstracts International, Volume: 76-01(E), Section: B.
Contained By:	Dissertation Abstracts International76-01B(E).
標題:	Molecular physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3635749
ISBN:	9781321170689

Carbon Single Wall Nanotubes: Low Barrier, Cu- Free Back Contact to CdTe Based Solar Cells.
Khanal, Rajendra Raj.

Carbon Single Wall Nanotubes: Low Barrier, Cu- Free Back Contact to CdTe Based Solar Cells. - Ann Arbor : ProQuest Dissertations & Theses, 2014 - 256 p.

Source: Dissertation Abstracts International, Volume: 76-01(E), Section: B.

Thesis (Ph.D.)--The University of Toledo, 2014.

This item is not available from ProQuest Dissertations & Theses.

Carbon single wall nanotubes (SWNTs) are hollow cylinders of graphene. They have unique mechanical, electrical, and optical properties that are directly influenced by their diameter and chirality. SWNTs are promising candidates for photovoltaics due to their high electrical conductivity and optical transparency. They do not require costly high vacuum processing conditions. SWNTs can be deposited onto different substrates using ultrasonic spray and membrane transfer methods. SWNTs have potential applications in solar cell technology.

ISBN: 9781321170689Subjects--Topical Terms:

3174737
Molecular physics.

Carbon Single Wall Nanotubes: Low Barrier, Cu- Free Back Contact to CdTe Based Solar Cells.
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100 1 $a Khanal, Rajendra Raj. $3 3281172
245 1 0 $a Carbon Single Wall Nanotubes: Low Barrier, Cu- Free Back Contact to CdTe Based Solar Cells.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2014
300 $a 256 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-01(E), Section: B.
500 $a Adviser: Michael J. Heben.
502 $a Thesis (Ph.D.)--The University of Toledo, 2014.
506 $a This item is not available from ProQuest Dissertations & Theses.
520 $a Carbon single wall nanotubes (SWNTs) are hollow cylinders of graphene. They have unique mechanical, electrical, and optical properties that are directly influenced by their diameter and chirality. SWNTs are promising candidates for photovoltaics due to their high electrical conductivity and optical transparency. They do not require costly high vacuum processing conditions. SWNTs can be deposited onto different substrates using ultrasonic spray and membrane transfer methods. SWNTs have potential applications in solar cell technology.
520 $a CdTe is one of the most promising semiconductor materials used for inexpensive solar cell technology. It has demonstrated a high efficiency of 20.4% in small area cells. One of the most important technological problems in CdTe solar cells is to make a good ohmic contact with CdTe for obtaining higher efficiencies. As CdTe has a very high work function, only high work functions metals can make a good ohmic contact with CdTe. However, no such metals with high work function than the work function of CdTe exist. Cu is used as a dopant in CdTe at the back contact in order to promote quantum mechanical tunneling. The record cell uses the Cu but the use of Cu causes a degradation of the device as Cu diffusion occurs through CdTe to the underlying CdS layer. In order to avoid such problems, Cu should not be used to create an ohmic contact with p-CdTe. The application of SWNT films without Cu at the back contact for CdTe solar cells has been investigated in this work.
520 $a In this thesis, the use of SWNT films as a Cu free back contact in a CdTe solar cell and the corresponding device performance were investigated and compared with the performance of a device with the standard Cu/Au back contact. The main goal of this thesis work was the investigation of the fundamental physics involved in low contact barriers and the charge transport at the SWNT/CdTe and SWNT/Au interfaces.
590 $a School code: 0232.
650 4 $a Molecular physics. $3 3174737
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710 2 $a The University of Toledo. $b Physics and Astronomy. $3 1684094
773 0 $t Dissertation Abstracts International $g 76-01B(E).
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791 $a Ph.D.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3635749