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薄膜材料与薄膜技术复?- 百度文库

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ŵ㣨 ٷӦװýΪ򵥣¶ȽϿ

ڿɶԻֽоȷƣĤľԺĤĵ绯ѧظԺ ԭ岻Ĥʴá

ֻͨıԭϼֳɷֵĻ

ȱ㣺õлԭһȼԡԭо綾 ȽMBELPEMOCVD

¶//ĤȣҺLPE>лѧMOPVD>ӣMBE

䡢Ӷ

Ӻɵ 0.1-0.3 3 -10 Ƭ 0 Ӷ 10-100 Ӹ

1.Ĥγɣ̡γ̡γ 2.۹̣ǰγԭӶԣ

ԭӽϳԭӶԼԺĹ̡Ҫԭڻɢ˶

-ɢ- ̣

䵽ԭӱҼסΪ

» 0.4nm ½ ڻѧѧ 0.1-0.3nm ѡ

3.ɺ---ëϸۣѧۣԭۣ

?֮ͬݵĻͬõijɺʹʽʽҲͬ

?ڲ֮ͬʹõͬģͲͬ

?ѧʺߴٽˡˣܽСIJϻ߹ͶȽС½гȽʺϡ

?ԭʺСߴٽˡСߴٽˣʱͶȺܸ߲ܷ۳ɺˡ

ģ͵ıʲѧйعʽԤʾŹͶȵı仯ٽ˳ߴͳɺ仯෴ԭԤʾDz仯

4.ٽγɣƵ

ԭӻӴгĵ׵ıۣ״˻״ʱܺٽ˳ߴѧʽ¶ȡͶȡʶr*ͦG*Ӱ졣

32?CV ״ۺѧʽ ?G(r)??43?r?Gv?4?r?ٽ˳ߴѧʽ

r?*2?cv?Gv?2?cvVkTln(P/Pe)

23r?Gv) ״ۺܱʽ?G(r)?4????)?r?0?13*0r??ٽ˳ߴʽ?Gv2?

ۺֹɣܣźijߴӶСźijߴźijߴСһٽijߴκ

*¶Ӱ죺¶T??T?,ٽ˰뾶rκ?G?γѡ

*ͶӰ죺ͶS?ٽ˰뾶rκ?G?˷κҲϵͣĽγɡ

ٶӰ죺R?ʱٽ˰뾶rκ?G?Ľγɡ 5.ëϸۣκ (dN/dt) ҪӰأ˵ԭӵѸܡɢܺٽκݶӰɺڻơ

****κ (dN/dt) ҪӰأ¶ȣͶȺͳٶȡɣԭӵѸԽߣɢԽͣκԽٽκԽͣκԽڻƣߵѸܺ͵͵ɢܶԭڻͣ˶κʡٽκԽͣԽγɣκҲԽ

6.ëϸۣҪ˵Ϊʲôµٳôִ򵥾ṹĤ¸ٳڻϸСྦྷ΢ǾĤ

𣺸ëϸ֪ڸµٳٶ£ٽ˰뾶κݶϴĽϴҲγɣκʵͣγɱĤִ֯ߵĤڵ¸ٳ£ٽ˰뾶κݶСĽСγɣκʸߣγɱĤ֯ϸڻϸСྦྷ΢ǾĤ

7.ȶγԺ󣬵״ĤγɹһΪ׶Σ׶εҪΣ

ȶγ֮󣬵״Ĥγɹ̷Ϊĸ׶ΣС׶ΣϽ׶Σ׶ΣĤ С׶ΣִСһµĺˣ2-3nm˽һС״ֹαԲɶС

Ͻ׶ΣС໥ϣϺ˸߶ȣСڻƬռܱʱҺԵ³ֵĻƬϽᷢκˣϺĸϵ㹻ʱ䣬γɾṹ ׶Σķֲﵽٽ״̬ʱ໥۽״ṹֽṹвֲſΪ50~200AĹųܿʧĤС׶״ṹС׶γɺ˻γɺˣĤһƬ

ĤųУڹͿ׶䵽ԭӱֱڱĤϣͨöγɲͬṹıĤ 8.ս̽ͺ̲Ƽ

𣺻ƣ໥ӴʱڽӴγɰ뾶ΪRƿһ2/RʹijԭͨɢͱɢǨƵƿУұɢͨɢͨʰ뾶RΪ2/R

9.ĤҪģʽÿģʽԳֵص㡣 𣺵״ͣͣ㵺͡

״ͣص㣺ĵϵijԭ۳ɺˣijԭӲϾۼں˸ʹάϲϳγɱĤ

ڳĵ׾ͳĤƥ䣨ǹʱ򵱺ԭӼĽܴԭʱ󲿷ֱĤγɹ͡

״ͣص㣺ԭڳĵ׵ıԵԭӲʽȵظһ㣬Ȼάڶ㡢㡤

һڳĵԭԭ֮ļܴڳԭ໥֮ܵ£񣩷ʽ

㵺ͣص㣺ƽڵͺͲ͵м״̬

ĵԭԭ֮ļܴڳԭ໥֮ܡָŲ״Ե£׼񣩶෢ʽ

1.ֱ

¬ɪɢ䣨RBS ǣSIMS ԻʷOH Ԫط X߹ףXPS ЪףAES 羵е΢EMA X ɢȷ ΢ַ X Ԫؼ̬ Ӧ ͬλط ԭ 2.ṹ

ܵ䣨LEED С500eV Լ100eV X䣨GIXS ǷdzС ڱṹ Ӧ ԭλĤ״ MEEDе RHEEDܵ

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ŵ㣨 ٷӦװýΪ򵥣¶ȽϿ ڿɶԻֽоȷƣĤľԺĤĵ绯ѧظԺ ԭ岻Ĥʴá ֻͨıԭϼֳɷֵĻ ȱ㣺õлԭһȼԡԭо綾 ȽMBELPEMOCVD ¶//ĤȣҺLPE>лѧMOPVD>ӣMBE 䡢Ӷ Ӻɵ 0.1-0.3 3 -10 Ƭ 0 Ӷ 10-100 Ӹ 1.Ĥγɣ̡γ̡γ

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