MEXANIK BOSIM VA ULTRATOVUSHNING BIRGALIKDAGI TA’SIRI OSTIDA METALL–SHISHA–YARIMO‘TKAZGICH STRUKTURALARDA ZARYAD RELAKSATSIYASI VA SIRT HOLATLARI DINAMIKASI
Metall–shisha–yarimo‘tkazgich strukturalarning elektrofizik xossalari interfeysdagi sirt holatlari va zaryad tashuvchilar dinamikasi bilan belgilanadi. Ushbu ishda mexanik bosim va ultra-tovushning alohida hamda kombinatsiyalangan ta’siri yuqori chastotali volt–farad xarakteristikalari va si-g‘im relaksatsiyasi usullari orqali tadqiq etildi. Kombinatsiyalangan ta’sir sirt holatlari zichligini kamayti-rib, zaryad relaksatsiyasini tezlashtirishi aniqlandi. Ushbu natijalarni izohlash uchun atomlararo bog‘lar-ning qayta konfiguratsiyalanishiga asoslangan fizik model va chegara sohasining holatini baholovchi di-namik barqarorlik koeffitsiyenti taklif qilindi. Natijalar MSHY strukturalarning interfeys xossalarini mexa-nik va akustik ta’sirlar orqali boshqarish mumkinligini ko‘rsatdi.
Металл–диэлектрик–полупроводниковые структуры характеризуются элек-трофизическими свойствами, определяемыми состояниями поверхности на границе раздела и ди-намикой носителей заряда. В данной работе отдельное и комбинированное воздействие механичес-кого давления и ультразвука исследовано с использованием высокочастотных вольт–фарадных ха-рактеристик и методов релаксации ёмкости. Установлено, что комбинированное воздействие приводит к снижению плотности поверхностных состояний и ускорению релаксации заряда. Для интерпретации полученных результатов предложена физическая модель, основанная на реконфи-гурации межатомных связей, а также введён коэффициент динамической стабильности, харак-теризующий состояние пограничной области. Полученные результаты показывают возможность управления интерфейсными свойствами МДП-структур посредством механических и акустичес-ких воздействий.
The electrophysical properties of metal–dielectric–semiconductor structures are determined by the surface states at the interface and the dynamics of charge carriers [5–11]. In this work, the individual and combined effects of mechanical pressure and ultrasound were investigated using high-frequency capacitance–voltage characteristics and capacitance relaxation methods. It was found that the combined effect reduces the density of surface states and accelerates charge relaxation. To interpret these results, a physical model based on the reconfiguration of interatomic bonds and a dynamic stability coefficient for assessing the state of the interfacial region were proposed. The results demonstrate the possibility of controlling the interface properties of MDS structures through mechanical and acoustic effects.
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