Yonsei University

Ajou University Industry-academic Cooperation Foundation

Hong Beom Choi

Woo-young Shim

Min-jung Kim

Tae-young Kim

Sang-jin Choi

Young-Bae Ko

Jong-bum Won

Ji-hong Bae

Bo-kyeong Kim

Proposed are a layered Group III-V compound having ferroelectric properties, a Group III-V compound nanosheet that may be prepared using the same, and an electrical device including the materials. Proposed is a layered compound represented by [Formula 1] MAB(M is at least one of Group I or Group II elements, A is at least one of Group III elements, B is at least one of Group V elements, x, y, and z are positive numbers which are determined according to stoichiometric ratios to ensure charge balance when m is 0, and 0&#x3c;m&#x3c;x), and having ferroelectric-like properties.

Layered group III-V compound including additive elements and having ferroelectric-like properties, and nanosheet using the same

Proposed are a layered Group III-V compound containing phosphorus, a Group III-V nanosheet that may be prepared using the same, and an electrical device including the materials. There is proposed a layered compound represented by [Formula 1] MAP(Where M is at least one of Group II elements, A is at least one of Group III elements, x, y, and z are positive numbers which are determined according to stoichiometric ratios to ensure charge balance when m is 0, and 0&#x3c;m&#x3c;x).

Layered group III-V compound and nanosheet containing phosphorus, and electrical device using the same

The present invention provides an augmented reality service providing device, including: a sensing unit to photograph an object and to measure a current position of a mobile terminal; a communication unit to measure a communication distance between the mobile terminal and the object; a control unit to control to repeat a plurality of times the measurement of the current position and the communication distance while the mobile terminal is moving; a calculation unit to calculate an estimated position of the object based on the current position and the communication distance measured repeatedly a plurality of times; and a display unit to display virtual information on the object on the estimated position of the object.

Object location measurement method and augmented reality service providing device using the same

Growing community of inventors

Seongnam-si, South Korea

Hong Beom Choi