레이더 탐색 시스템은 동물의 이동을 탐지할 수 있는 최신 기술로 발전하고 있다. 말벌류는 양봉장을 방문하여 꿀벌의 대량 폐사를 야기하는 문제 해충으로, 사냥한 먹이를 둥지로 가져가고 동료를 불러와 더 큰 피해를 입힌다. 따라서 말벌 행동 연구에서 이동 거리와 방향은 물론 말벌 둥지를 찾아내는 일은 매우 중요하다. 말벌 행동 연구를 위한 레이다 기술의 적용을 위한 예비 실험결과를 발표하고자 한다. 레이더 탐색 시스템은 발신기, 전파 탐지기 그리고 수신기로 구성된다. 본 연구에서는 0.19g 발신기와 야기안테나, IC-R20 수신기를 활용하였다. 발신기를 곤충 등에 부착하기 위한 접착제를 5종 테스트 한 결과 순간접착제류는 충격에 의한 이탈이 쉽게 이루어졌고, 전용접착제의 경우 30회 충돌실험에서 온전하게 부착됨을 확인하였다. 신호 수신역은 평지에 비해 산지 등 복잡 지형에서 짧았으며, 발신기의 높이가 높을수록 수신역은 증가하고, 지면아래 깊이가 깊을수록 감소하였다. 예를 들어 말벌집이 지하 50cm 깊이에 존재할 경우, 그 안에서 발신되는 전파는 30m 내외에서만 감지되었다. 블라인드테스르틀 통한 발신기 위치 확인은 통상적으로 수신역 내에서 10분 내외로 찾을 수 있었다. 이상을 바탕으로 야외 적용 연구가 이루어 진다면 곤충의 행동 연구에 새로운 방향을 제시할 수 있을 것으로 본다.

Organic Electroluminescent devices(OELD) consisted of multilayer structures have been studied for the application the application to flat-panel display. Metal-chelate complexes, zinc bis(2-(2-hydroxyphenyl)benzoxazolate) (Zn(BOX)2) and zinc bis(2-(2-hydroxyphenyl)benzothiazolate) (Zn(BOX)2), have been intensively investigated as an white-light emitting layer and recognized to have good electroluminescent(EL) properties. In this study, (Zn(BOX)2) and (Zn(BTZ)2) were synthesized and characterized by FT-IR, 1H-NMR, UV-VIS and PL. Their EL properties were also studied and their ionization potential(IP) and electron affinity(EA) were also measured by cyclic voltammetry(CV).

A water-soluble conducting polymer (CPP400 Paste) containing a derivative of polythiophene with several dopant was investigated as an anode material for organic electroluminescent devices. The device of ITO/CPP 400 Paste/TPD/Alq3/Li:Al was fabricated, where CPP 400 Paste films were prepared by spin coating and TPD and Alq3, films were prepared by vacuum evaporation. It was found that the turn-on voltage, current density, and luminance of the devices were dependent upon the thickness of CPP 400 Paste film in the Electroluminescent and current-voltage characteristics of the devices. This phenomena were explained by the energy level diagram of the device with the energy levels of the CPP400 Paste obtained by cyclic voltammetric method.

Recently, high luminance and efficiency were realize in organic thin film electroluminescence (EL) cells with multilayer structures including an emitting layer (EML), hole transporting layer (HTL), and an electron transporting layer (ETL). In this study, Bis(10-hydroxybenzo[h]quinolinato)beryllium (Bebq2) was synthesized. PL and EL characteristics of their thin film were investigated by fabricating the devices having a structure of ITO/PVK/Bebq2/Al, ITO/PVK dispersed with TPD/Bebq2/Al. The EL color of these device was greenish and the wavelength of their EL peaks was located, respectly, at 495nm, and 492.5nm.

In this study, a new conducting materials, namely, a Schiff base (polymeric azomethine) was synthesized from 2,6-diamino-N-docosyl pyridinium bromide and terephthalaldehyde to obtain a soluble and fusible conducting polymer. The synthesized Schiff base structure was analyzed by using UV/vis absorption spectrophotometer, FT-IR spectrometer and 1H-NMR spectrometer. It was found that the Schiff base was successfully synthesized and soluble in carbon tetrachloride(CC14), its Langmuir-Blodgett film was easily fabricated, and its surface pressure was determined to be 30mN/m for solid state by measuring π-A isotherm.

Thin films of Eu(TTA)3(phen), which was known to show red-light emitting properties, were deposited under various deposition condition. The thickness, surface morphology, and photoluminescence(PL) were measured with α-step profiler, Atomic Force Microscopy(AFM), and PL measurement apparatus. It was found that the thickness of Eu(TTA)3(phen) film can be controlled precisely by adjusting the amounts of Eu(TTA)3(phen) in the boat. As the thickness of these films increases, the surface roughness also increases. A structure of Al/Eu(TTA)3(phen)(850a)/TPD(600a)/ITO was fabricated, Electroluminescence(EL) spectrum of which shows the peak at the wavelength of 618nm.