工作原理光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)三(san)极(ji)管的(de)(de)基(ji)(ji)本结(jie)构和(he)普通(tong)(tong)三(san)极(ji)管一(yi)样，有(you)两(liang)个(ge)PN结(jie)。图1为(wei)(wei)NPN型(xing)，b-c结(jie)为(wei)(wei)受光(guang)(guang)(guang)(guang)(guang)结(jie)，吸收入射(she)(she)光(guang)(guang)(guang)(guang)(guang)，基(ji)(ji)区(qu)面(mian)积(ji)较大(da)(da)(da)，发射(she)(she)区(qu)面(mian)积(ji)较小。、当(dang)(dang)光(guang)(guang)(guang)(guang)(guang)入射(she)(she)到基(ji)(ji)极(ji)表面(mian)，产(chan)生光(guang)(guang)(guang)(guang)(guang)生电(dian)(dian)(dian)(dian)(dian)(dian)子(zi)-空穴(xue)对(dui)，会在(zai)b-c结(jie)电(dian)(dian)(dian)(dian)(dian)(dian)场作用(yong)(yong)下，电(dian)(dian)(dian)(dian)(dian)(dian)子(zi)向集电(dian)(dian)(dian)(dian)(dian)(dian)极(ji)漂移(yi)，而空穴(xue)移(yi)向基(ji)(ji)使基(ji)(ji)极(ji)电(dian)(dian)(dian)(dian)(dian)(dian)位升高，在(zai)c、e间外加(jia)电(dian)(dian)(dian)(dian)(dian)(dian)压作用(yong)(yong)下（c为(wei)(wei)+、e为(wei)(wei)-）大(da)(da)(da)量电(dian)(dian)(dian)(dian)(dian)(dian)子(zi)由发射(she)(she)极(ji)注入，除少数在(zai)基(ji)(ji)极(ji)与空穴(xue)复(fu)合外，大(da)(da)(da)量通(tong)(tong)过极(ji)薄的(de)(de)基(ji)(ji)极(ji)被集电(dian)(dian)(dian)(dian)(dian)(dian)极(ji)收集，成为(wei)(wei)输出光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。总之，光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)三(san)极(ji)管工作原理分为(wei)(wei)两(liang)个(ge)过程：一(yi)是(shi)光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)转(zhuan)换；二(er)是(shi)光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)流(liu)放大(da)(da)(da)。比较大(da)(da)(da)特点是(shi)输出电(dian)(dian)(dian)(dian)(dian)(dian)流(liu)大(da)(da)(da)，达毫(hao)安级。但(dan)响(xiang)应(ying)(ying)速度(du)比光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)二(er)极(ji)管慢得(de)多(duo)，温(wen)度(du)效应(ying)(ying)也(ye)(ye)比光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)二(er)极(ji)管大(da)(da)(da)得(de)多(duo)。光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)三(san)极(ji)管的(de)(de)典型(xing)应(ying)(ying)用(yong)(yong)电(dian)(dian)(dian)(dian)(dian)(dian)路1．亮(liang)通(tong)(tong)光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)控制(zhi)电(dian)(dian)(dian)(dian)(dian)(dian)路当(dang)(dang)有(you)光(guang)(guang)(guang)(guang)(guang)线照射(she)(she)于光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)件上时，使继电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)有(you)足够(gou)的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)流(liu)而动作，这种电(dian)(dian)(dian)(dian)(dian)(dian)路称为(wei)(wei)亮(liang)通(tong)(tong)光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)控制(zhi)电(dian)(dian)(dian)(dian)(dian)(dian)路，也(ye)(ye)叫明通(tong)(tong)控制(zhi)电(dian)(dian)(dian)(dian)(dian)(dian)路。光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)二(er)极(ji)管的(de)(de)其他应(ying)(ying)用(yong)(yong)有(you)：用(yong)(yong)作光(guang)(guang)(guang)(guang)(guang)传感(gan)器(qi)(qi)的(de)(de)光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)二(er)极(ji)管。北(bei)京(jing)什么是(shi)光(guang)(guang)(guang)(guang)(guang)电(dian)(dian)(dian)(dian)(dian)(dian)三(san)极(ji)管采(cai)购

VI 光(guang)(guang)电(dian)(dian)二(er)极(ji)管(guan)(guan)应用具体的(de)光(guang)(guang)电(dian)(dian)二(er)极(ji)管(guan)(guan)应用是(shi)：1. 光(guang)(guang)电(dian)(dian)管(guan)(guan)光(guang)(guang)电(dian)(dian)管(guan)(guan)本质上(shang)是(shi)一(yi)个(ge)(ge)大面(mian)积的(de)PN结(jie)。当光(guang)(guang)在(zai)一(yi)个(ge)(ge) PN 结(jie)表(biao)面(mian)上(shang)发(fa)射(she)时，例如 P 区表(biao)面(mian)，如果光(guang)(guang)子能(neng)量大于半导(dao)体材料(liao)的(de)禁带(dai)(dai)带(dai)(dai)宽(kuan)，则(ze) P 区中的(de)每个(ge)(ge)光(guang)(guang)子都会产(chan)生一(yi)个(ge)(ge)自(zi)由电(dian)(dian)子-空(kong)穴对(dui)。电(dian)(dian)子-空(kong)穴对(dui)迅(xun)速向内扩散，并在(zai)结(jie)电(dian)(dian)场下形成与光(guang)(guang)强(qiang)相(xiang)关的(de)电(dian)(dian)动势(shi)。这时候(hou)，如果我们把(ba)它作为(wei)电(dian)(dian)源，连接到外(wai)部(bu)电(dian)(dian)路，只要有(you)光(guang)(guang)，它就(jiu)会持续(xu)供(gong)电(dian)(dian)，这就(jiu)是(shi)光(guang)(guang)电(dian)(dian)池(chi)。换句(ju)话说，光(guang)(guang)电(dian)(dian)池(chi)是(shi)一(yi)种没有(you)偏(pian)置电(dian)(dian)压的(de)PN结(jie)光(guang)(guang)电(dian)(dian)器件。它可以直(zhi)接将光(guang)(guang)能(neng)转化为(wei)电(dian)(dian)能(neng)。湖北使用光(guang)(guang)电(dian)(dian)三(san)极(ji)管(guan)(guan)厂家现货光(guang)(guang)电(dian)(dian)二(er)三(san)极(ji)管(guan)(guan)就(jiu)选凯(kai)轩业科技，有(you)想法可以来我司咨询。

光(guang)(guang)(guang)(guang)电二(er)极(ji)(ji)管的(de)(de)(de)材(cai)料1、硅2、锗(zhe)3、硫化铅用于(yu)构(gou)造光(guang)(guang)(guang)(guang)电二(er)极(ji)(ji)管的(de)(de)(de)材(cai)料对于(yu)描述其(qi)性能(neng)(neng)非常重要(yao)，因为只有具(ju)有适当能(neng)(neng)量(liang)的(de)(de)(de)光(guang)(guang)(guang)(guang)子才能(neng)(neng)激(ji)发带隙(xi)中的(de)(de)(de)电子，并能(neng)(neng)够(gou)产生(sheng)大量(liang)的(de)(de)(de)光(guang)(guang)(guang)(guang)电流(liu)。重要(yao)的(de)(de)(de)是(shi)(shi)要(yao)记(ji)住(zhu)，基于(yu)硅的(de)(de)(de)光(guang)(guang)(guang)(guang)电二(er)极(ji)(ji)管具(ju)有更大的(de)(de)(de)带隙(xi)，因此(ci)，与基于(yu)锗(zhe)的(de)(de)(de)光(guang)(guang)(guang)(guang)电二(er)极(ji)(ji)管相比，它能(neng)(neng)够(gou)产生(sheng)更少的(de)(de)(de)噪声。由于(yu)晶体管和(he)IC也是(shi)(shi)由半导(dao)体材(cai)料制成的(de)(de)(de)，并且包(bao)含pn结，因此(ci)可(ke)以像光(guang)(guang)(guang)(guang)电二(er)极(ji)(ji)管一(yi)样(yang)工作。这是(shi)(shi)不(bu)可(ke)接受的(de)(de)(de)，必(bi)须使用不(bu)透明的(de)(de)(de)外壳才能(neng)(neng)消(xiao)除这种(zhong)影(ying)响。尽管这些对于(yu)高(gao)能(neng)(neng)辐射(she)并不(bu)是(shi)(shi)完全不(bu)透明的(de)(de)(de)，但(dan)仍可(ke)能(neng)(neng)导(dao)致IC因感(gan)应的(de)(de)(de)光(guang)(guang)(guang)(guang)电流(liu)而发生(sheng)故(gu)障。

光(guang)(guang)电(dian)二极管(guan)(guan)的(de)(de)(de)(de)关(guan)键要(yao)求之一是(shi)收(shou)集光(guang)(guang)的(de)(de)(de)(de)合(he)适区(qu)域(yu)。在(zai)(zai)标准PN结内，这相(xiang)对较小，但可(ke)(ke)(ke)以(yi)(yi)(yi)通(tong)过使(shi)用(yong)(yong)PIN二极管(guan)(guan)来增加面(mian)(mian)积。由(you)于本征(zheng)区(qu)域(yu)包含在(zai)(zai)用(yong)(yong)于集光(guang)(guang)的(de)(de)(de)(de)有源结中(zhong)，因此(ci)用(yong)(yong)于集光(guang)(guang)的(de)(de)(de)(de)区(qu)域(yu)要(yao)大得多，从而使(shi)PIN光(guang)(guang)电(dian)二极管(guan)(guan)更有效(xiao)。在(zai)(zai)光(guang)(guang)电(dian)二极管(guan)(guan)制造过程中(zhong)，在(zai)(zai)P型(xing)和(he)N型(xing)层(ceng)(ceng)(ceng)(ceng)(ceng)之间(jian)插入了(le)厚的(de)(de)(de)(de)本征(zheng)层(ceng)(ceng)(ceng)(ceng)(ceng)。该中(zhong)间(jian)本征(zheng)层(ceng)(ceng)(ceng)(ceng)(ceng)可(ke)(ke)(ke)以(yi)(yi)(yi)是(shi)完全本征(zheng)的(de)(de)(de)(de)，或(huo)者是(shi)非常(chang)轻(qing)掺杂的(de)(de)(de)(de)以(yi)(yi)(yi)使(shi)其(qi)成为N-层(ceng)(ceng)(ceng)(ceng)(ceng)。在(zai)(zai)某些情况下(xia)，它可(ke)(ke)(ke)以(yi)(yi)(yi)作为外延(yan)层(ceng)(ceng)(ceng)(ceng)(ceng)生长到(dao)衬底(di)(di)上(shang)(shang)，或(huo)者它可(ke)(ke)(ke)以(yi)(yi)(yi)包含在(zai)(zai)衬底(di)(di)本身内。P+扩散(san)层(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)开发可(ke)(ke)(ke)以(yi)(yi)(yi)在(zai)(zai)重掺杂的(de)(de)(de)(de)N型(xing)外延(yan)层(ceng)(ceng)(ceng)(ceng)(ceng)上(shang)(shang)进行。触(chu)点采用(yong)(yong)金属(shu)设计，可(ke)(ke)(ke)制成阳(yang)极和(he)阴极等两个端子。二极管(guan)(guan)的(de)(de)(de)(de)前部(bu)(bu)区(qu)域(yu)可(ke)(ke)(ke)以(yi)(yi)(yi)分为两种(zhong)类(lei)型(xing)，例如有源表(biao)面(mian)(mian)和(he)无源表(biao)面(mian)(mian)。非活(huo)性表(biao)面(mian)(mian)的(de)(de)(de)(de)设计可(ke)(ke)(ke)以(yi)(yi)(yi)用(yong)(yong)二氧化硅(gui)(SiO2)完成。在(zai)(zai)活(huo)动(dong)表(biao)面(mian)(mian)上(shang)(shang)，光(guang)(guang)线(xian)可(ke)(ke)(ke)以(yi)(yi)(yi)照(zhao)射(she)(she)在(zai)(zai)其(qi)上(shang)(shang)，而在(zai)(zai)非活(huo)动(dong)表(biao)面(mian)(mian)上(shang)(shang)，光(guang)(guang)线(xian)不能照(zhao)射(she)(she)。通(tong)过抗(kang)反(fan)射(she)(she)材料覆盖活(huo)性表(biao)面(mian)(mian)，使(shi)光(guang)(guang)的(de)(de)(de)(de)能量不会(hui)损失，比较高(gao)可(ke)(ke)(ke)以(yi)(yi)(yi)转(zhuan)化为电(dian)流(liu)。+太阳(yang)能电(dian)池是(shi)一种(zhong)半(ban)(ban)导(dao)体(ti)器件。当(dang)阳(yang)光(guang)(guang)照(zhao)射(she)(she)到(dao)半(ban)(ban)导(dao)体(ti)上(shang)(shang)时，一部(bu)(bu)分被反(fan)射(she)(she)，其(qi)余(yu)部(bu)(bu)分被吸收(shou)或(huo)穿透半(ban)(ban)导(dao)体(ti)。

光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)二(er)(er)(er)极(ji)(ji)(ji)管(guan)具有(you)(you)滤光(guang)(guang)(guang)器、内(nei)(nei)置(zhi)透镜和(he)表面(mian)区(qu)(qu)域。当(dang)光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)二(er)(er)(er)极(ji)(ji)(ji)管(guan)的(de)(de)表面(mian)积增(zeng)加时(shi)，会缩短响应时(shi)间。很少有(you)(you)光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)二(er)(er)(er)极(ji)(ji)(ji)管(guan)看(kan)起来像(xiang)发光(guang)(guang)(guang)二(er)(er)(er)极(ji)(ji)(ji)管(guan) (LED)。它(ta)有(you)(you)两个终端，如下所示(shi)。较小的(de)(de)端子(zi)(zi)(zi)(zi)用(yong)作(zuo)(zuo)阴极(ji)(ji)(ji)，较长的(de)(de)端子(zi)(zi)(zi)(zi)用(yong)作(zuo)(zuo)阳极(ji)(ji)(ji)。光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)二(er)(er)(er)极(ji)(ji)(ji)管(guan)原(yuan)(yuan)理 光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)二(er)(er)(er)极(ji)(ji)(ji)管(guan)的(de)(de)工(gong)作(zuo)(zuo)原(yuan)(yuan)理是，当(dang)一个能量(liang)充足的(de)(de)光(guang)(guang)(guang)子(zi)(zi)(zi)(zi)撞(zhuang)击二(er)(er)(er)极(ji)(ji)(ji)管(guan)时(shi)，会产(chan)生(sheng)一对(dui)电(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)空(kong)(kong)穴。这种机制也称为内(nei)(nei)光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)效应。如果在耗(hao)(hao)尽(jin)区(qu)(qu)结中出现吸收，则载流子(zi)(zi)(zi)(zi)被(bei)耗(hao)(hao)尽(jin)区(qu)(qu)的(de)(de)内(nei)(nei)置(zhi)电(dian)(dian)(dian)(dian)场从结中去(qu)除。通常当(dang)用(yong)光(guang)(guang)(guang)照亮PN结的(de)(de)时(shi)，共价键被(bei)电(dian)(dian)(dian)(dian)离(li)。这会产(chan)生(sheng)空(kong)(kong)穴和(he)电(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)对(dui)。由于电(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)-空(kong)(kong)穴对(dui)的(de)(de)产(chan)生(sheng)而产(chan)生(sheng)光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)流。当(dang)能量(liang)超过 1.1eV 的(de)(de)光(guang)(guang)(guang)子(zi)(zi)(zi)(zi)撞(zhuang)击二(er)(er)(er)极(ji)(ji)(ji)管(guan)时(shi)，就会形成电(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)空(kong)(kong)穴对(dui)。当(dang)光(guang)(guang)(guang)子(zi)(zi)(zi)(zi)进(jin)入二(er)(er)(er)极(ji)(ji)(ji)管(guan)的(de)(de)耗(hao)(hao)尽(jin)区(qu)(qu)时(shi)，它(ta)以高(gao)能量(liang)撞(zhuang)击原(yuan)(yuan)子(zi)(zi)(zi)(zi)。这导致从原(yuan)(yuan)子(zi)(zi)(zi)(zi)结构中释(shi)放电(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)。电(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)释(shi)放后(hou)，产(chan)生(sheng)自(zi)由电(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)和(he)空(kong)(kong)穴。光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)二(er)(er)(er)三(san)(san)极(ji)(ji)(ji)管(guan)只选(xuan)凯轩业科技有(you)(you)限公(gong)司，信(xin)赖之选(xuan)。四川多功能光(guang)(guang)(guang)电(dian)(dian)(dian)(dian)三(san)(san)极(ji)(ji)(ji)管(guan)的(de)(de)作(zuo)(zuo)用(yong)

光电二极(ji)管(guan)的关(guan)键要求(qiu)之一(yi)是收集光的合适区域。北京什么是光电三极(ji)管(guan)采购

光(guang)(guang)(guang)(guang)(guang)(guang)电(dian)二(er)极管的(de)(de)(de)主要要求之一(yi)是(shi)确保比(bi)较大量的(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)到(dao)达本征层(ceng)。实现这(zhei)一(yi)点的(de)(de)(de)方(fang)法之一(yi)是(shi)将电(dian)触(chu)点放置在设备的(de)(de)(de)侧面，如(ru)图所示。这(zhei)使(shi)得比(bi)较大量的(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)能够到(dao)达有(you)效区域。发现由(you)于(yu)衬底(di)是(shi)重掺杂的(de)(de)(de)，由(you)于(yu)这(zhei)不是(shi)有(you)源区，因(yin)此(ci)几乎没有(you)光(guang)(guang)(guang)(guang)(guang)(guang)损(sun)失。由(you)于(yu)光(guang)(guang)(guang)(guang)(guang)(guang)在一(yi)定距(ju)离内大部分被吸收(shou)，本征层(ceng)的(de)(de)(de)厚度(du)(du)通(tong)常与此(ci)相匹配。任何超过此(ci)厚度(du)(du)的(de)(de)(de)增加都会降(jiang)低操(cao)作(zuo)速度(du)(du)——这(zhei)是(shi)许多应用中的(de)(de)(de)一(yi)个重要因(yin)素(su)，并(bing)且(qie)不会**提(ti)高效率。也可以让光(guang)(guang)(guang)(guang)(guang)(guang)从结的(de)(de)(de)一(yi)侧进入光(guang)(guang)(guang)(guang)(guang)(guang)电(dian)二(er)极管。通(tong)过以这(zhei)种(zhong)方(fang)式操(cao)作(zuo)光(guang)(guang)(guang)(guang)(guang)(guang)电(dian)二(er)极管，可以使(shi)本征层(ceng)变得更少(shao)以提(ti)高操(cao)作(zuo)速度(du)(du)，尽管效率降(jiang)低。在某些情况(kuang)下(xia)，可以使(shi)用异质结。这(zhei)种(zhong)结构形式具(ju)有(you)额外的(de)(de)(de)灵活性，可以从基板接收(shou)光(guang)(guang)(guang)(guang)(guang)(guang)，并(bing)且(qie)具(ju)有(you)更大的(de)(de)(de)能隙(xi)，使(shi)其对光(guang)(guang)(guang)(guang)(guang)(guang)透(tou)明。北京什么是(shi)光(guang)(guang)(guang)(guang)(guang)(guang)电(dian)三极管采购(gou)

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