Mitsui Minings & Melting Co., Ltd.

Panasonic Corporation

Kyushu Seimitsu Kiki Co., Ltd.

Nozomu Kitajima

Yoshinori Matsuura

Naohiko Abe

Toshimi Nakamura

Masaharu Myoi

Mitsuo Yaguchi

Shuichi Yamamoto

Masao Kawauchi

Tomonori Noda

There is provided a metal foil suitable for an electrode substrate for an electronic element, which makes it possible to suppress oxidation of the ultra-smooth surface and also prevent roll scratches when wound in a roll. The metal foil of the present invention is made of copper or copper alloy. The front surface of the metal foil has an ultra-smooth surface profile having an arithmetic mean roughness Ra of 30 nm or less as determined in accordance with JIS B 0601-2001. The back surface of the metal has a concave-dominant surface profile having a Pv/Pp ratio of 1.5 or more, the Pv/Pp ratio being a ratio of a maximum profile valley depth Pv to a maximum profile peak height Pp of a profile curve as determined in a rectangular area of 181 &#x3bc;m by 136 &#x3bc;m in accordance with JIS B 0601-2001.

Metal foil and electronic device

There is provided an electrode foil that can form an organic electroluminescent device having a high external quantum efficiency despite the presence of the organic nitrogen compound at the interface of a metal foil and a reflective layer. The electrode foil of the invention includes a metal foil made of copper or copper alloy and a reflective layer provided on at least one surface of the metal foil. The electrode foil has an organic nitrogen compound at the interface between the metal foil and the reflective layer in such an amount that the ratio of the number of counts on the C&#x2014;N bond to the total number of counts on the copper and the C&#x2014;N bond: CN/(CN+Cu) in the organic nitrogen compound is 0.4 or less determined by time-of-flight secondary ion mass spectrometric analysis (TOF-SIMS) of the interface.

Electrode foil and organic light-emitting device

An electrode foil which has both the functions of a supporting base material and a reflective electrode and also has superior thermal conductivity; and an organic device using the same are provided. The electrode foil comprises a metal foil and a reflective layer provided directly on the metal foil.

Electrode foil and organic device

There is provided an electrode foil, which can show superior light scattering, while preventing short circuit between electrodes. The electrode foil of the present invention comprises a metal foil having a thickness of from 1 &#x3bc;m to 250 &#x3bc;m, wherein the electrode foil comprises, on at least one outermost surface thereof, a light-scattering surface having a Pv/Pp ratio of 2.0 or higher, wherein the Pv/Pp ratio is a ratio of a maximum profile valley depth Pv of a profile curve to a maximum profile peak height Pp of the profile curve as measured in a rectangular area of 181 &#x3bc;m&#xd7;136 &#x3bc;m in accordance with JIS B 0601-2001.

Electrode foil and electronic device

There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.

An electrode foil, which has both the functions of a supporting base material and a reflective electrode, and also has superior thermal conductivity, and an organic device using the same are provided. The electrode foil comprises a metal foil and a reflective layer provided directly on the metal foil.

There are provided an electrode foil which has both the functions of a supporting base material and a reflective electrode and also has a superior thermal conductivity and heat resistance; and an organic device using the same. The electrode foil comprises a metal foil; a diffusion prevention layer for preventing diffusion of metal derived from the metal foil, the diffusion prevention layer being provided directly on the metal foil; and a reflective layer provided directly on the diffusion prevention layer.

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Ageo, Japan

Nozomu Kitajima