Rapid Voltage Sensing with Single Nanorods via the Quantum Confined Stark Effect

Omri Bar-Elli, Dan Steinitz, Gaoling Yang, Ron Tenne, Anastasia Ludwig, Yung Kuo, Antoine Triller, Shimon Weiss, Dan Oron

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

Properly designed colloidal semiconductor quantum dots (QDs) have already been shown to exhibit high sensitivity to external electric fields via the quantum confined Stark effect (QCSE). Yet, detection of the characteristic spectral shifts associated with the effect of the QCSE has traditionally been painstakingly slow, dramatically limiting the sensitivity of these QD sensors to fast transients. We experimentally demonstrate a new detection scheme designed to achieve shot-noise-limited sensitivity to emission wavelength shifts in QDs, showing feasibility for their use as local electric field sensors on the millisecond time scale. This regime of operation is already potentially suitable for detection of single action potentials in neurons at a high spatial resolution.

اللغة الأصليةالإنجليزيّة
الصفحات (من إلى)2860-2867
عدد الصفحات8
دوريةACS Photonics
مستوى الصوت5
رقم الإصدار7
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 24 يونيو 2018
الحدث8th International Conference on Surface Plasmon Photonics (SPP) - Taipei
المدة: ٢٢ مايو ٢٠١٧٢٦ مايو ٢٠١٧

All Science Journal Classification (ASJC) codes

  • !!Electronic, Optical and Magnetic Materials
  • !!Atomic and Molecular Physics, and Optics
  • !!Electrical and Electronic Engineering
  • !!Biotechnology

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