Electronics and Telecommunications Research Institute

Hogyeong Yun

Mangu Kang

Hunkyun Pak

Jong-Hyun Lee

Kwang-Seong Choi

Jongdae Kim

Byung-Seok Choi

Mi Hee Jung

Jong-Deog Kim

Sanghee Kim

Jong-Tae Moon

Seungyup Lee

Yongseok Jun

Provided are a solar cell and a method of manufacturing the same. The method includes: preparing a bottom substrate including sequentially stacked first and second portions, each of the first and second portions including a plurality of grains, wherein the maximum grain size of the second portion is less than the minimum grains size of the first portion; exposing the first portion of the bottom substrate by removing the second portion of the bottom substrate; and forming a photovoltaic conversion layer on the first portion of the bottom substrate.

Solar cell and method of manufacturing the same

Provided is a dye-sensitized solar cell including a flexible electrode. The dye-sensitized solar cell includes: first and second electrodes facing each other, and an electrolyte layer interposed between the first and second electrodes, wherein the first electrode comprises a structure formed of conductive fibers, a nano-particle semiconductor oxide layer formed on a surface of the structure of the conductive fibers, and dye molecules adsorbed in the nano-particle semiconductor oxide layer.

Dye-sensitized solar cell using conductive fiber electrode

Provided are methods of forming a nano structure and method of forming a solar cell using the same. The method of forming the nano structure includes: preparing a template; ionizing a surface of the template; forming an oxide layer enclosing the template on the surface of the template; and removing the template.

Methods of forming nano structure and methods of forming solar cell using the same

A system for monitoring an optical output/wavelength is employed to be used for a WDM system having a narrow channel space by structuring an etalon and photodiode as an integrated structure. The system includes: a laser source control unit for controlling the laser source; an optical/wavelength monitoring unit for monitoring an optical output/wavelength of the controlled laser source; a TEC control unit for controlling a TEC in order to constantly maintain the laser source of the optical output/wavelength monitoring unit to have a predetermined temperature; a temperature control unit for controlling a heater and a thermistor to set an etalon to a predetermined temperature, wherein the heater is attached on the optical output/wavelength monitoring unit and the thermistor is attached on the heater; a comparison unit for comparing the optical output signal and the wavelength signal, each of which is monitored by the optical output/wavelength monitoring unit; and a processing unit for comparing values of the compared signals with a preset value to control an input current or a temperature of the laser source.

System for monitoring optical output/wavelength

Growing community of inventors

Seoul, South Korea

Hogyeong Yun