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Enabling High Performance III-V Thin...

Fan, Dejiu.

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Enabling High Performance III-V Thin-Film Photodetectors on Unconventional Surfaces.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Enabling High Performance III-V Thin-Film Photodetectors on Unconventional Surfaces./
作者:	Fan, Dejiu.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:	170 p.
附註:	Source: Dissertations Abstracts International, Volume: 81-11, Section: B.
Contained By:	Dissertations Abstracts International81-11B.
標題:	Optics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28006470
ISBN:	9798643185352

Enabling High Performance III-V Thin-Film Photodetectors on Unconventional Surfaces.
Fan, Dejiu.

Enabling High Performance III-V Thin-Film Photodetectors on Unconventional Surfaces. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 170 p.

Source: Dissertations Abstracts International, Volume: 81-11, Section: B.

Thesis (Ph.D.)--University of Michigan, 2020.

This item must not be sold to any third party vendors.

High performance optoelectronic devices made of III-V compound semiconductors are preferred over elemental semiconductors due to their superior optical and electronic properties. With the development of semiconductor fabrication technology, thin-film optoelectronics on unconventional surfaces have drawn attention due to the benefits of enhanced absorption/reflection, reduced fabrication cost, superior mechanical flexibility, opportunities for integration with dissimilar materials, etc. In this thesis, we demonstrate novel fabrication techniques that transfer the III-V optoelectronic devices, especially high-performance photodetectors focal plane arrays, from their bulky and rigid crystalline substrates, to unconventional lightweight, flexible, conformal, and non-developable surfaces without performance degradation. The demonstrations include a cylindrical and bendable 8x100 thin-film In0.53Ga0.47As p-i-n photodiode array fabricated on a thin flexible plastic foil, and a hemispherical GaAs p-n junction focal plane array that mimics the size, form, and function of the human eye. In addition, we integrate an energy harvesting photodetector comprising an InGaAs-based thin-film thermophotovoltaic (TPV) cell with low index dielectrics and even air for enhanced out-of-band photon recycling. Specifically, an unconventional TPV cell is fabricated over an air cavity, showing 8% (absolute) power conversion efficiency improvement compared to conventional thin-film TPV cells, leading to a record-high TPV power conversion efficiency of > 30% at 1500K emitter temperature. The demonstrated high performance III-V thin-film photodetectors on unconventional surfaces unlock possibilities for future optoelectronics that are beyond current planar and lattice-matched substrates, and provide paths to their ubiquitous applications.

ISBN: 9798643185352Subjects--Topical Terms:

517925
Optics.
Subjects--Index Terms:

Thin-film optoelectronics

Enabling High Performance III-V Thin-Film Photodetectors on Unconventional Surfaces.
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520 $a High performance optoelectronic devices made of III-V compound semiconductors are preferred over elemental semiconductors due to their superior optical and electronic properties. With the development of semiconductor fabrication technology, thin-film optoelectronics on unconventional surfaces have drawn attention due to the benefits of enhanced absorption/reflection, reduced fabrication cost, superior mechanical flexibility, opportunities for integration with dissimilar materials, etc. In this thesis, we demonstrate novel fabrication techniques that transfer the III-V optoelectronic devices, especially high-performance photodetectors focal plane arrays, from their bulky and rigid crystalline substrates, to unconventional lightweight, flexible, conformal, and non-developable surfaces without performance degradation. The demonstrations include a cylindrical and bendable 8x100 thin-film In0.53Ga0.47As p-i-n photodiode array fabricated on a thin flexible plastic foil, and a hemispherical GaAs p-n junction focal plane array that mimics the size, form, and function of the human eye. In addition, we integrate an energy harvesting photodetector comprising an InGaAs-based thin-film thermophotovoltaic (TPV) cell with low index dielectrics and even air for enhanced out-of-band photon recycling. Specifically, an unconventional TPV cell is fabricated over an air cavity, showing 8% (absolute) power conversion efficiency improvement compared to conventional thin-film TPV cells, leading to a record-high TPV power conversion efficiency of > 30% at 1500K emitter temperature. The demonstrated high performance III-V thin-film photodetectors on unconventional surfaces unlock possibilities for future optoelectronics that are beyond current planar and lattice-matched substrates, and provide paths to their ubiquitous applications.
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