Efficient surface silanization and fluorescent labelling of germanium pyramid array: Optimization and characterization

Sabriye Açıkgöz; Hasan Yüngeviş; Ayşegül Şahin; Emin Özünal

Makale detayları

Efficient surface silanization and fluorescent labelling of germanium pyramid array: Optimization and characterization

Yazarlar:

Sabriye Açıkgöz | Hasan Yüngeviş | Ayşegül Şahin | Emin Özünal

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Elektronik | Optik ve Manyetik Malzemeler | Malzeme Karekterizasyonu

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 4, pp.1127-1138

Belge Tipi:

Makale

Yayın Tarihi:

10/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001329692

pISSN:

2564-6605

Anahtar kelimeler:

Özet:

 Nowadays homogeneous germanium Ge pyramid arrays are emerging in many application areas such as solar cells, photodetectors and next-generation semiconductor lasers. To enhance the application areas of germanium pyramid surfaces, particularly in chemical and biological sensors, these surfaces need to be modified to rapidly respond to biological molecules. In this work, a simple and cost-effective method was investigated to modify germanium pyramid surfaces with 3-aminopropyltriethoxysilane APTES, enabling them to be functionalized for interaction with biological molecules. In order to establish the presence of APTES on germanium surfaces, APTES modified surfaces were labeled with fluorescent BODIPY molecules. During the silanization process, the effects of reaction time and reaction temperature were studied for the attachment of APTES on bulk germanium and pyramid array. The products of different reactions were characterized using photoluminescence spectroscopy PL and fluorescence lifetime imaging microscopy FLIM. The optimum reaction time and processing temperature for a reasonably good surface coverage by APTES molecules were determined as 24 hour and 60 0C, respectively. The fluorescence lifetime of BODIPY molecules on pyramids monitored with FLIM microscope was measured as 2.4 ns. APTES treatment can offer a robust and reliable pathway to immobilize various molecules on electronically important semiconductor surfaces and fabricate new optoelectronic devices with high performance.

 Nowadays homogeneous germanium Ge pyramid arrays are emerging in many application areas such as solar cells, photodetectors and next-generation semiconductor lasers. To enhance the application areas of germanium pyramid surfaces, particularly in chemical and biological sensors, these surfaces need to be modified to rapidly respond to biological molecules. In this work, a simple and cost-effective method was investigated to modify germanium pyramid surfaces with 3-aminopropyltriethoxysilane APTES, enabling them to be functionalized for interaction with biological molecules. In order to establish the presence of APTES on germanium surfaces, APTES modified surfaces were labeled with fluorescent BODIPY molecules. During the silanization process, the effects of reaction time and reaction temperature were studied for the attachment of APTES on bulk germanium and pyramid array. The products of different reactions were characterized using photoluminescence spectroscopy PL and fluorescence lifetime imaging microscopy FLIM. The optimum reaction time and processing temperature for a reasonably good surface coverage by APTES molecules were determined as 24 hour and 60 0C, respectively. The fluorescence lifetime of BODIPY molecules on pyramids monitored with FLIM microscope was measured as 2.4 ns. APTES treatment can offer a robust and reliable pathway to immobilize various molecules on electronically important semiconductor surfaces and fabricate new optoelectronic devices with high performance.

 Nowadays homogeneous germanium Ge pyramid arrays are emerging in many application areas such as solar cells, photodetectors and next-generation semiconductor lasers. To enhance the application areas of germanium pyramid surfaces, particularly in chemical and biological sensors, these surfaces need to be modified to rapidly respond to biological molecules. In this work, a simple and cost-effective method was investigated to modify germanium pyramid surfaces with 3-aminopropyltriethoxysilane APTES, enabling them to be functionalized for interaction with biological molecules. In order to establish the presence of APTES on germanium surfaces, APTES modified surfaces were labeled with fluorescent BODIPY molecules. During the silanization process, the effects of reaction time and reaction temperature were studied for the attachment of APTES on bulk germanium and pyramid array. The products of different reactions were characterized using photoluminescence spectroscopy PL and fluorescence lifetime imaging microscopy FLIM. The optimum reaction time and processing temperature for a reasonably good surface coverage by APTES molecules were determined as 24 hour and 60 0C, respectively. The fluorescence lifetime of BODIPY molecules on pyramids monitored with FLIM microscope was measured as 2.4 ns. APTES treatment can offer a robust and reliable pathway to immobilize various molecules on electronically important semiconductor surfaces and fabricate new optoelectronic devices with high performance.

 Günümüzde homojen germanyum Ge piramit dizileri güneş hücreleri, fotodedektörler ve yeni nesil yarı iletken lazerler gibi pek çok uygulama alanında karşımıza çıkmaktadır. Germanyum piramit yüzeylerin kullanım alanlarının daha çok geliştirilebilmesi kimyasal ve biyolojik sensör gibi uygulamalarda da aktif olarak kullanılabilmesi için bu yüzeylerin biyolojik moleküllere hızlı cevap verecek şekilde modifiye edilmesi gerekmektedir. Bu çalışmada germanyum piramit yüzeylerinin 3-aminopropiltrietoksisilan APTES ile modifiye edilerek biyolojik molekülere açık olacak şekilde işlevselleştirilmesi için basit ve düşük maliyetli bir yöntem araştırılmıştır. APTESin germanyum yüzeylerinde varlığını belirlemek için APTES ile modifiye edilmiş germanyum yüzeyler floresan BODIPY molekülleri ile etiketlenmiştir. Silanizasyon süreci boyunca, reaksiyon süresi ve reaksiyon sıcaklığının yığınsal germanyum ve piramit dizisine yerleşen APTES molekülleri üzerindeki etkileri araştırılmıştır. Farklı reaksiyonlarla üretilen numuneler, fotolüminesans spektroskopisi PL ve floresan yaşam ömrü görüntüleme mikroskobu FLIM ile karakterize edilmiştir. APTES moleküllerinin oldukça iyi bir yüzey tutunması sağlayabilmesi için optimum reaksiyon süresi ve işlem sıcaklığı sırasıyla 24 saat ve 60 0C olarak belirlenmiştir. FLIM mikroskobu ile görüntülenen piramitler üzerinde BODIPY moleküllerinin yaşam ömrü 2,4 ns olarak ölçülmüştür. APTES uygulaması elektronik açıdan önemli yarı iletken yüzeylerde çeşitli molekülleri hareketsiz hale getirmek ve yüksek performanslı yeni optoelektronik cihazlar üretmek için sağlam ve güvenilir bir yol sunabilir.

Makale detayları

Efficient surface silanization and fluorescent labelling of germanium pyramid array: Optimization and characterization

Yazarlar:

Sabriye Açıkgöz | Hasan Yüngeviş | Ayşegül Şahin | Emin Özünal

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Elektronik | Optik ve Manyetik Malzemeler | Malzeme Karekterizasyonu

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 4, pp.1127-1138

Belge Tipi:

Makale

Yayın Tarihi:

10/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001329692

pISSN:

2564-6605

Germanium pyramid

APTES

Silanization

BODIPY

FLIM microscope.Germanyum piramit

APTES

Silanizasyon

BODIPY

FLIM mikroskobu.

Sayı

Makale detayları

Yazarlar: Sabriye Açıkgöz | Hasan Yüngeviş | Ayşegül Şahin | Emin Özünal

Yayıncı: Nigde Omer Halisdemir University

Ana Başlıklar: Elektronik | Optik ve Manyetik Malzemeler | Malzeme Karekterizasyonu

Dergi: Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 4, pp.1127-1138

Belge Tipi: Makale

Yayın Tarihi: 10/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001329692

pISSN: 2564-6605

Sayı

Yazarlar:

Sabriye Açıkgöz | Hasan Yüngeviş | Ayşegül Şahin | Emin Özünal

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Elektronik | Optik ve Manyetik Malzemeler | Malzeme Karekterizasyonu

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.13 Issue 4, pp.1127-1138

Belge Tipi:

Makale

Yayın Tarihi:

10/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001329692

pISSN:

2564-6605