Dong ho deo tay chay bang nhiet co the

Dong ho dien tu tuong lai se hoat dong bang nhiet do co the.

Cac nha khoa hoc Duc vua dua ra mot giai phap moi cho dong ho dien tu deo tay, do la loi dung su chenh lech nhiet do giua co the va moi truong de tao ra nguon dien cho no. Phat minh nay dang duoc cac hang cong nghiep dien tu quan tam dac biet.

Bi mat nam o con chip ban dan lam bang silic dac biet. Chi can mat truoc va mat sau cua chip co su chenh lech nhiet do la se xuat hien mot dong dien nho xiu chay ben trong no. Mau thu dau tien o nhiet do phong da cung cap dien nang 1 microWatt (tinh tren 1 centimet vuong giao dien tiep xuc giua chip va tay nguoi).

"Neu su chenh lech nhiet do la 5 do C, thi con chip nay co the cung cap du nang luong cho mot dong ho deo tay", ong Werner Weber, truong nhom nghien cuu thuoc Cong ty san xuat chip Infineon o Munich (Duc), thong bao.

Loi the lon nhat cua cac thiet bi nay la chip it gay doc hai hon kim loai. Tuy nhien hien nay, voi cong suat 1micro Watt va 5 Volt / 1 centimet vuong tiep dien, con chip chua co kha nang van hanh cac vat dung lon hon nhu dien thoai di dong, may tinh tay... Neu cac nha khoa hoc Duc tim duoc cach nang cao cong suat chip silic, thi no se mo ra mot thi truong rong lon cho cac do dien tu mang theo nguoi. Day se la co hoi lon cho cac hang cong nghiep dien tu.

Minh Hy (theo dpa)