Rip off and characterization of nanowire ensembles for photovoltaic applications
(2014) FYSM60 20131Department of Physics
Solid State Physics
- Abstract
- The main aim of this project was to peel off the epitaxially grown nanowires (NWs) from their native substrate and transfer them to the cheaper carrier substrate in order to make solar cell device from transferred NWs. Potentially the peeling and transferring idea is about to decrease the cost of NWs growth by reusing the native substrate especially for expensive material such as InP and GaAs which are suitable materials for single junction solar cell. Two different kinds of polymers, PDMS and a SolOneTM were used in this work as a membrane to peel off the NWs. Successful peeling was achieved which provides an opportunity to make photoluminescence and absorption measurements on ordered arrays of NWs embedded into membrane.
Transmission... (More) - The main aim of this project was to peel off the epitaxially grown nanowires (NWs) from their native substrate and transfer them to the cheaper carrier substrate in order to make solar cell device from transferred NWs. Potentially the peeling and transferring idea is about to decrease the cost of NWs growth by reusing the native substrate especially for expensive material such as InP and GaAs which are suitable materials for single junction solar cell. Two different kinds of polymers, PDMS and a SolOneTM were used in this work as a membrane to peel off the NWs. Successful peeling was achieved which provides an opportunity to make photoluminescence and absorption measurements on ordered arrays of NWs embedded into membrane.
Transmission and reflection measurements were done on NWs embedded in membrane, after peeling, in order to experimentally measure the absorption through the ordered array of NWs without any contribution of the substrate. To fabricate a solar cell device from peeled off NWs, an ordered array of NWs with 2500 nm in length and 180 nm diameter with 400 nm of pitch was used. After peeling, the back contact was applied to the back of the membrane by metal deposition, and the membrane was bonded to the carrier substrate (silicon wafer was used in this projects) from the backside. After planarization, two different sizes of top contact were defined by photoresist spinning and lithography. Indium tin oxide (ITO), which is the transparent conductive oxide, was deposited on the top of the NWs as top contact.
I-V measurements under dark and illumination, which was provided by solar simulator, were performed to observe the fabricated device performance. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/4436559
- author
- Abrand Abadizadeh, Seyed Alireza LU
- supervisor
- organization
- course
- FYSM60 20131
- year
- 2014
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- nanowire, solar cell, PDMS, flexible film
- language
- English
- id
- 4436559
- date added to LUP
- 2014-05-09 12:26:34
- date last changed
- 2014-10-22 10:11:51
@misc{4436559, abstract = {{The main aim of this project was to peel off the epitaxially grown nanowires (NWs) from their native substrate and transfer them to the cheaper carrier substrate in order to make solar cell device from transferred NWs. Potentially the peeling and transferring idea is about to decrease the cost of NWs growth by reusing the native substrate especially for expensive material such as InP and GaAs which are suitable materials for single junction solar cell. Two different kinds of polymers, PDMS and a SolOneTM were used in this work as a membrane to peel off the NWs. Successful peeling was achieved which provides an opportunity to make photoluminescence and absorption measurements on ordered arrays of NWs embedded into membrane. Transmission and reflection measurements were done on NWs embedded in membrane, after peeling, in order to experimentally measure the absorption through the ordered array of NWs without any contribution of the substrate. To fabricate a solar cell device from peeled off NWs, an ordered array of NWs with 2500 nm in length and 180 nm diameter with 400 nm of pitch was used. After peeling, the back contact was applied to the back of the membrane by metal deposition, and the membrane was bonded to the carrier substrate (silicon wafer was used in this projects) from the backside. After planarization, two different sizes of top contact were defined by photoresist spinning and lithography. Indium tin oxide (ITO), which is the transparent conductive oxide, was deposited on the top of the NWs as top contact. I-V measurements under dark and illumination, which was provided by solar simulator, were performed to observe the fabricated device performance.}}, author = {{Abrand Abadizadeh, Seyed Alireza}}, language = {{eng}}, note = {{Student Paper}}, title = {{Rip off and characterization of nanowire ensembles for photovoltaic applications}}, year = {{2014}}, }