![129281-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/129281-Thumbnail%20Image.png?versionId=GuiXfXSSS.nDJhypWiFP547gH4c3p1zC&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240617/us-west-2/s3/aws4_request&X-Amz-Date=20240617T051658Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=7b6bb7b9c2c991e8aa3346eb5e55c0ccf823dd1eba840db66d4f78a4993bdec4&itok=8rrf-3rM)
A CdZnTe/MgCdTe double-heterostructure (DH) consisting of a 3 μm thick Cd0.9946 Zn0.0054Te middle layer that is lattice-matched to an InSb substrate has been grown using molecular beam epitaxy. A long carrier lifetime of 3.4 × 102 ns has been demonstrated at room temperature, which is approximately three times as long as that of a CdTe/MgCdTe DH with identical layer thickness. This substantial improvement is due to the reduction in misfit dislocation density in the CdZnTe alloy. In contrast, a CdTe/MgCdTe DH with 3 μm thick CdTe layer grown on an InSb substrate exhibits a strain relaxation of ∼30%, which leads to a wider x-ray diffraction peak, a weaker integrated photoluminescence intensity, and a shorter minority carrier lifetime of 1.0 × 102 ns. These findings indicate that CdZnTe lattice-matched to InSb has great potential as applied to high-efficiency solar cells as well as virtual substrates for high-performance large-area HgCdTe focal plane arrays.
![130233-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130233-Thumbnail%20Image.png?versionId=tRy9B9uEY.mQ1iztew7lSq8GGfjskxU2&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240617/us-west-2/s3/aws4_request&X-Amz-Date=20240617T141509Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=cec545306c6e63bb0021d26159b311ce2a3c931857a2f92ea9ecaa67ada0061c&itok=e8zEJG9s)
![130236-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130236-Thumbnail%20Image.png?versionId=3YH1xbzT2WPdbDtZrn8bxZMCsQPX4LMC&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240617/us-west-2/s3/aws4_request&X-Amz-Date=20240617T052212Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=5923c70141f71a85bac7f0e7fb5e97f4e234c13cc9495f19c878ef33cd89888c&itok=wKlFWZZC)
![130242-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130242-Thumbnail%20Image.png?versionId=fv5TDlYv9QtUAESFG6C54H6LCLYJU5yC&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240617/us-west-2/s3/aws4_request&X-Amz-Date=20240617T092028Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=0b67961733cbc782089b9de98752f913e6fe783fb13833af6c530a406cbe6a10&itok=j711ENWZ)
![130244-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130244-Thumbnail%20Image.png?versionId=BiZnl7q0guoHwG1kaUlyA4Pw46jCKU_q&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240616/us-west-2/s3/aws4_request&X-Amz-Date=20240616T155233Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=01f4144d1222b0df116e36f5ddb23c09bf0c35194cde93b352b2bbad9c2828ed&itok=Y495zrdp)
![130245-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130245-Thumbnail%20Image.png?versionId=ezKg.zUuRKvHw0xiQa21xRWvGbzTzLM8&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240617/us-west-2/s3/aws4_request&X-Amz-Date=20240617T125127Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=a4a405a35ae029f931c14e947e0bf98df5906b3c567f54bfee4f10af70d0a7a3&itok=2MEenzEi)
![130246-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130246-Thumbnail%20Image.png?versionId=ZIkcikQbLJ95vvgi1S1L4oEBUsInAaq1&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240617/us-west-2/s3/aws4_request&X-Amz-Date=20240617T092028Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=32620ebb02ad249a0ff79d5958ae0dea4049f9149c9f24a3823194c11acbdbe3&itok=keGRxHUv)
![130247-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130247-Thumbnail%20Image.png?versionId=w6uB9AjhW5UeN8G.ocjJQ5bj6to.gocI&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240617/us-west-2/s3/aws4_request&X-Amz-Date=20240617T092028Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=1ba97f8158bcd9d77adf93d73c7ab00ac0dbdfc08b2d0942566575b1eb585b1c&itok=2ut-MlvL)
![130209-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130209-Thumbnail%20Image.png?versionId=N0KO95bTookvHnZwQ2s3a6UZKuCHBzT7&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240615/us-west-2/s3/aws4_request&X-Amz-Date=20240615T153023Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=1019e4a61c48a7452adfc0923fc0bac8b5a8c804ef8f13e31a07b1edef457041&itok=syNeS5u9)
![130221-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-04/130221-Thumbnail%20Image.png?versionId=yTS8n.1cW_xPH61W3G8.lSD1hMaV5DdC&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240616/us-west-2/s3/aws4_request&X-Amz-Date=20240616T185823Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=845b7962e46e0b00e5135d4d1831e10b5bbff87c5c3238fa1bfd754a26c5a7f1&itok=Twpvht7e)